What are the cheapest airlines flying from Washington, D.C. to London round-trip?

Icelandair, at £387, was found to be the cheapest airline from Washington, D.C. to London.Alternate airlines flying return to your destination include PLAY and TAP AIR PORTUGAL. These flights start at 36% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. to London one-way?

The cheapest airline one-way is PLAY, with whom users have recently found tickets for as low as £176. However, be on the lookout for offers from Icelandair and WorldTicket, as they are both options that can get you from Washington, D.C. to London for a low price.

What is the cheapest day to fly from Washington, D.C. to London?

Travellers seeking maximum savings on their Washington, D.C. to London flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to London?

The most popular route from Washington, D.C. to London is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick.

What are the cheapest flights from Washington, D.C. to London?

Looking at all options, your cheapest flight can be booked for £307. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £378 on average our data indicates £556 when flying from Washington, D.C. to London.

What are the most reliable airlines from Washington, D.C. to London?

Before booking your flight to London from Washington, D.C., check out the most reliable airlines to get you to your destination on time: American Airlines (44%), Aer Lingus (44%), Finnair( 44%).

What are the most popular airlines that fly from Washington, D.C. to London?

Before booking your flight from Washington, D.C. to London check out the most popular airlines for this route: British Airways, Icelandair or Iberia.

What is the cheapest day to fly round-trip from Washington, D.C. to London?

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 22% on the overall cost on flights from Washington, D.C. to London.

How far in advance should I book a flight from Washington, D.C. to London?

Find a great deal and save up to 15% by booking at least 39 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Washington, D.C. to London within the next two weeks, with the cheapest ticket starting at £629.

What is the cheapest month to fly from Washington, D.C. to London?

January is one of the best times of the year to fly to London from Washington, D.C.. Prices for January average £607 per person but you can even find prices for as low as £306. The most expensive prices can be found in the month of June. Opting for a January flight can save you 37% on your journey compared to booking in June

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.

Can I find deals for business class flights from Washington, D.C. to London?

Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£168+ Flights from Washington, D.C. to London

The best prices from Washington, D.C. to London are usually found in January or October, booked 73 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Washington, D.C. to London

Round-trip from	£387
One-way from	£168
Popular in	June
Cheapest in	January
Average price	£521
Good round-trip deal	£524 or less
Good one-way deal	£326 or less

Icelandair
19/3-25/3
2 total stops
37h 10m total
Washington, D.C. to London

Search Deals

18/3
1 total stop
15h 30m total
Washington, D.C. to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£92 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in January 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. (WAS) to London (LON).

Search Deals

Price to beat on a one-way flight from Washington, D.C. (WAS) to London (LON).

Search Deals

Find flight deals from Washington, D.C. to London

Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Wed 19/320:30BWI - LHR

1 stop10h 20mIcelandair

Tue 25/320:40LHR - BWI

1 stop26h 50mIcelandair

Deal found 21/1£387

Thu 27/320:30BWI - LTN

2 stops22h 35mMultiple Airlines

Mon 31/309:00LTN - BWI

2 stops15h 25mMultiple Airlines

Deal found 20/1£387

Sun 2/219:30BWI - LGW

1 stop10h 25mIcelandair

Sun 2/311:55LGW - BWI

1 stop11h 35mIcelandair

Deal found 21/1£387

Sat 8/218:10BWI - STN

1 stop10h 50mPLAY

Wed 12/211:00STN - BWI

1 stop11h 00mPLAY

Deal found 21/1£387

Tue 15/418:50BWI - STN

1 stop15h 10mMultiple Airlines

Wed 23/408:25STN - BWI

1 stop14h 15mMultiple Airlines

Deal found 21/1£391

Mon 3/318:10BWI - LGW

1 stop16h 20mMultiple Airlines

Mon 17/307:40LGW - BWI

1 stop14h 20mMultiple Airlines

Deal found 21/1£415

Mon 17/319:10BWI - LHR

2 stops21h 15mMultiple Airlines

Wed 26/307:30LHR - BWI

1 stop14h 30mMultiple Airlines

Deal found 21/1£422

Thu 15/520:30IAD - LHR

1 stop10h 25mIcelandair

Mon 19/513:05LHR - IAD

1 stop11h 15mIcelandair

Deal found 21/1£427

Sun 26/122:30IAD - LGW

1 stop12h 15mTAP AIR PORTUGAL

Wed 5/210:40LGW - IAD

1 stop15h 20mTAP AIR PORTUGAL

Deal found 21/1£428

Thu 1/520:30IAD - LGW

1 stop13h 10mIcelandair

Sun 11/515:40LGW - IAD

1 stop32h 40mIcelandair

Deal found 21/1£429

Sun 23/222:30IAD - LHR

1 stop19h 10mTAP AIR PORTUGAL

Wed 5/308:15LHR - IAD

1 stop17h 45mTAP AIR PORTUGAL

Deal found 21/1£431

Sun 2/217:10IAD - LTN

1 stop10h 40mMultiple Airlines

Tue 11/209:00LTN - IAD

1 stop11h 40mMultiple Airlines

Deal found 21/1£435

Best flights from Washington, D.C. to London
Discover carefully curated flight deals from Washington, D.C. to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 January 2025.

Wed 19/320:30BWI - LHR

1 stop10h 20mIcelandair

Tue 25/320:40LHR - BWI

1 stop26h 50mIcelandair

Deal found 21/1£387

Sun 23/320:30BWI - LTN

2 stops16h 15mMultiple Airlines

Mon 31/309:00LTN - BWI

2 stops15h 25mMultiple Airlines

Deal found 20/1£387

Sat 8/218:10BWI - STN

1 stop10h 50mPLAY

Wed 12/211:00STN - BWI

1 stop11h 00mPLAY

Deal found 21/1£387

Sun 23/222:30IAD - LGW

1 stop12h 15mTAP AIR PORTUGAL

Mon 10/316:35LGW - IAD

1 stop26h 55mTAP AIR PORTUGAL

Deal found 21/1£428

Sun 2/217:10IAD - LHR

2 stops16h 25mScandinavian Airlines

Tue 11/219:30LHR - IAD

1 stop25h 10mScandinavian Airlines

Deal found 21/1£436

Mon 10/319:00IAD - LHR

Nonstop7h 15mIberia

Tue 18/316:30LHR - IAD

Nonstop8h 15mIberia

Deal found 20/1£464

Sun 2/218:25IAD - LHR

Nonstop7h 30mVirgin Atlantic

Tue 11/209:00LHR - IAD

1 stop12h 15mVirgin Atlantic

Deal found 21/1£467

Sat 22/208:00DCA - LHR

1 stop16h 55mJetBlue

Fri 28/208:25LHR - DCA

1 stop13h 05mJetBlue

Deal found 21/1£468

Mon 28/421:20BWI - LHR

Nonstop7h 15mBritish Airways

Thu 8/516:35LHR - BWI

Nonstop8h 00mBritish Airways

Deal found 21/1£490

Sun 2/220:30BWI - LHR

Nonstop7h 10mFinnair

Tue 11/213:35LHR - BWI

Nonstop8h 20mFinnair

Deal found 21/1£500

Mon 3/306:59DCA - LHR

2 stops19h 11mAir Canada

Tue 11/306:50LHR - DCA

2 stops18h 10mAir Canada

Deal found 21/1£503

Tue 25/319:25IAD - LHR

Nonstop7h 30mDelta

Tue 1/408:40LHR - IAD

1 stop11h 55mDelta

Deal found 21/1£505

Direct flights from Washington, D.C. to London
Explore direct flight options from Washington, D.C. to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 January 2025.

Wed 5/320:30BWI - LHR

Nonstop7h 10mIberia

Wed 12/315:25LHR - BWI

Nonstop8h 20mIberia

Deal found 21/1£433

Wed 5/318:00IAD - LHR

Nonstop7h 15mIberia

Wed 12/312:10LHR - IAD

Nonstop8h 25mIberia

Deal found 21/1£433

Sun 2/220:30BWI - LHR

Nonstop7h 10mBritish Airways

Tue 11/213:35LHR - BWI

Nonstop8h 20mBritish Airways

Deal found 21/1£485

Wed 12/322:55IAD - LHR

Nonstop7h 10mBritish Airways

Wed 9/417:00LHR - IAD

Nonstop8h 10mBritish Airways

Deal found 21/1£490

Mon 10/218:45IAD - LHR

Nonstop7h 30mVirgin Atlantic

Wed 26/212:25LHR - IAD

Nonstop8h 40mVirgin Atlantic

Deal found 21/1£494

Sun 2/220:30BWI - LHR

Nonstop7h 10mFinnair

Tue 11/213:35LHR - BWI

Nonstop8h 20mFinnair

Deal found 21/1£500

Sun 2/221:55IAD - LHR

Nonstop7h 10mFinnair

Tue 11/216:30LHR - IAD

Nonstop8h 15mFinnair

Deal found 21/1£500

Sun 2/218:25IAD - LHR

Nonstop7h 30mDelta

Wed 12/212:25LHR - IAD

Nonstop8h 40mDelta

Deal found 21/1£508

Tue 11/222:15IAD - LHR

Nonstop7h 35mUnited Airlines

Wed 19/212:05LHR - IAD

Nonstop8h 40mUnited Airlines

Deal found 20/1£534

Wed 12/322:55IAD - LHR

Nonstop7h 10mAmerican Airlines

Thu 10/412:45LHR - IAD

Nonstop8h 05mAmerican Airlines

Deal found 21/1£535

Wed 12/321:30BWI - LHR

Nonstop7h 10mAmerican Airlines

Thu 20/315:25LHR - BWI

Nonstop8h 20mAmerican Airlines

Deal found 21/1£558

Tue 11/218:25IAD - LHR

Nonstop7h 15mAustrian Airlines

Tue 18/216:20LHR - IAD

Nonstop8h 35mAustrian Airlines

Deal found 21/1£558

Last-minute flights from Washington, D.C. to London
Discover last-minute flight deals from Washington, D.C. to London. Data last updated 22 January 2025 and is based on user searches.

Sun 26/118:10BWI - STN

1 stop10h 50mPLAY

Wed 5/211:00STN - BWI

1 stop11h 00mPLAY

Deal found 21/1£409

Sun 26/118:10BWI - LGW

1 stop16h 00mMultiple Airlines

Wed 5/207:25LGW - BWI

1 stop14h 35mMultiple Airlines

Deal found 21/1£417

Sun 26/119:40IAD - LHR

1 stop10h 10mIcelandair

Thu 6/220:40LHR - IAD

1 stop26h 45mIcelandair

Deal found 21/1£428

Sun 26/122:30IAD - LGW

1 stop12h 15mTAP AIR PORTUGAL

Wed 5/210:40LGW - IAD

1 stop15h 20mTAP AIR PORTUGAL

Deal found 21/1£428

Mon 27/119:30BWI - LGW

1 stop10h 25mIcelandair

Mon 3/211:55LGW - BWI

1 stop11h 35mIcelandair

Deal found 20/1£387

Mon 27/119:30BWI - LHR

1 stop19h 00mIcelandair

Tue 4/220:40LHR - BWI

1 stop26h 50mIcelandair

Deal found 20/1£389

Mon 27/119:30BWI - STN

2 stops15h 25mMultiple Airlines

Mon 3/207:40STN - BWI

2 stops15h 50mMultiple Airlines

Deal found 20/1£419

Mon 27/119:15IAD - LGW

1 stop15h 30mTAP AIR PORTUGAL

Tue 4/216:35LGW - IAD

1 stop33h 25mTAP AIR PORTUGAL

Deal found 20/1£432

Mon 27/118:10BWI - LTN

2 stops22h 50mMultiple Airlines

Wed 5/207:05LTN - BWI

2 stops14h 55mMultiple Airlines

Deal found 20/1£439

Mon 27/119:40IAD - LGW

1 stop10h 15mIcelandair

Wed 19/211:55LGW - IAD

1 stop11h 30mIcelandair

Deal found 21/1£444

Mon 27/119:40IAD - LTN

2 stops21h 20mMultiple Airlines

Tue 4/207:10LTN - IAD

2 stops16h 15mMultiple Airlines

Deal found 20/1£477

Tue 28/115:00DCA - LHR

1 stop9h 55mJetBlue

Wed 5/208:25LHR - DCA

1 stop12h 35mJetBlue

Deal found 21/1£468

One-way flights from Washington, D.C. to London
Search for one-way flight options from Washington, D.C. to London. Find affordable one-way fares based on user searches. Data last updated 22 January 2025.

Tue 18/319:10BWI - LTN

1 stop15h 30mMultiple Airlines

Deal found 20/1£168

Wed 5/311:34BWI - LGW

1 stop15h 31mMultiple Airlines

Deal found 20/1£172

Mon 3/318:10BWI - STN

1 stop10h 50mPLAY

Deal found 20/1£176

Tue 28/119:30BWI - LHR

1 stop10h 20mIcelandair

Deal found 21/1£199

Mon 27/119:30BWI - LGW

1 stop10h 25mIcelandair

Deal found 21/1£199

Thu 30/108:00BWI - STN

2 stops47h 15mMultiple Airlines

Deal found 21/1£204

Sat 5/412:48IAD - LGW

1 stop16h 12mMultiple Airlines

Deal found 21/1£208

Mon 10/219:40IAD - LHR

1 stop10h 10mIcelandair

Deal found 21/1£211

Wed 26/319:10BWI - LHR

1 stop15h 45mMultiple Airlines

Deal found 21/1£215

Thu 30/119:40IAD - LGW

1 stop10h 15mIcelandair

Deal found 20/1£216

Sun 23/319:10BWI - STN

1 stop10h 50mWorldTicket

Deal found 20/1£230

Tue 4/307:00DCA - LHR

3 stops48h 50mMultiple Airlines

Deal found 20/1£233

Find flights from Washington, D.C. to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 19/3

20:30-10:50

1 stop10h 20m

London Heathrow

Tue 25/3

20:40-19:30

1 stop26h 50m

£387

BaltimoreLondon

BWI - LTN

BWILTN

Baltimore/Washington

Sun 23/3

20:30-16:45

2 stops16h 15m

London Luton

Mon 31/3

09:00-19:25

2 stops15h 25m

£387

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Sat 8/2

18:10-10:00

1 stop10h 50m

London Stansted

Wed 12/2

11:00-17:00

1 stop11h 00m

£387

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Sat 1/2

19:30-10:55

1 stop10h 25m

London Gatwick

Sat 8/2

11:55-18:30

1 stop11h 35m

£387

BaltimoreLondon

BWI - STN

BWISTN

Baltimore/Washington

Fri 4/4

18:50-17:50

2 stops18h 00m

London Stansted

Tue 8/4

06:10-17:40

2 stops16h 30m

£391

BaltimoreLondon

BWI - LGW

BWILGW

Baltimore/Washington

Wed 26/2

18:10-21:15

2 stops22h 05m

London Gatwick

Mon 3/3

07:05-17:00

2 stops14h 55m

£397

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Sun 2/2

18:10-21:00

2 stops21h 50m

London Heathrow

Fri 7/2

07:50-17:00

2 stops14h 10m

£415

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 15/5

20:30-11:55

1 stop10h 25m

London Heathrow

Mon 19/5

13:05-19:20

1 stop11h 15m

£427

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 23/2

22:30-15:45

1 stop12h 15m

London Gatwick

Mon 10/3

16:35-15:30

1 stop26h 55m

£428

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 23/2

22:30-21:35

1 stop18h 05m

London Heathrow

Tue 11/3

06:00-15:30

1 stop13h 30m

£431

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 60 results

...

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington, D.C. to London

Get recent, data-driven insights about flights from Washington, D.C. to London including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to London?

The best time to book flights from Washington, D.C. to London is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to London?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to London (average of £112). Flying from Washington, D.C. to London in August is currently the most expensive (average of £161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to LON?

It’s optimal to fly from Washington, D.C. to London in the evening. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight at midday.

Weekly flight availability from Washington, D.C. to London

The most flights from WAS to LON are scheduled on a Monday (26 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Washington, D.C. to London, such as Icelandair, JetBlue and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,521 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

7.9

Good

277 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,341 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,286 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,600 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. to London round-trip?
Icelandair, at £387, was found to be the cheapest airline from Washington, D.C. to London.Alternate airlines flying return to your destination include PLAY and TAP AIR PORTUGAL. These flights start at 36% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. to London one-way?
The cheapest airline one-way is PLAY, with whom users have recently found tickets for as low as £176. However, be on the lookout for offers from Icelandair and WorldTicket, as they are both options that can get you from Washington, D.C. to London for a low price.
What are the most popular routes from Washington, D.C. to London?
The most popular route from Washington, D.C. to London is Washington, D.C. Dulles Intl - London Heathrow. You may also consider Baltimore/Washington - London Heathrow or Washington, D.C. Dulles Intl - London Gatwick.
What are the most reliable airlines from Washington, D.C. to London?
Before booking your flight to London from Washington, D.C., check out the most reliable airlines to get you to your destination on time: American Airlines (44%), Aer Lingus (44%), Finnair( 44%).
What are the cheapest flights from Washington, D.C. to London?
Looking at all options, your cheapest flight can be booked for £307. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for £378 on average our data indicates £556 when flying from Washington, D.C. to London.
Can I find deals for flights from Washington, D.C. to London that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to London.
Can I find deals for business class flights from Washington, D.C. to London?
Yes. Cheapflights offers flight deals from Washington, D.C. to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to London?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to London (average of £112). Flying from Washington, D.C. to London in August is currently the most expensive (average of £161). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Deal

Hounslow

Gatwick

Croydon

Milton Keynes

Slough

Luton

Ilford

Hayes

Eastbourne

Maidstone

Crawley

Winchester

Southend-on-Sea

Wembley

Ipswich

Watford

Southall

Stansted

Sutton

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to London

Direct flights to England

Direct flights to London

Direct flights to Manchester

Direct flights to Birmingham

Direct flights to Newcastle upon Tyne

Direct flights to Newquay

Direct flights to Bristol

Direct flights to Liverpool

Direct flights to Leeds

Direct flights to Exeter

Direct flights to East Midlands

Direct flights to Bournemouth

Direct flights to Darlington

Direct flights to Grimsby

Other flights to London

Edinburgh to Stansted flights

Belfast Intl to Stansted flights

Newquay to Stansted flights

Belfast Intl to Luton flights

Edinburgh to Luton flights

Belfast City to Luton flights

London Stansted Airport to Milan Malpensa Airport flights

London Luton Airport to Tirana flights

London Luton Airport to Nice flights

London Gatwick Airport to Brest flights

London Luton Airport to Aberdeen flights

London Stansted Airport to Marrakech flights

London Luton Airport to Poznan flights

London Luton Airport to Wroclaw flights

London Stansted Airport to Luxembourg flights

London Stansted Airport to Hamburg flights

London Stansted Airport to Dubrovnik flights

London Stansted Airport to Barcelona-El Prat Airport flights

London Stansted Airport to Dortmund flights

London Stansted Airport to Frankfurt-Hahn Airport flights

London Stansted Airport to Santiago de Compostela flights

London Stansted Airport to Basel EuroAirport Swiss flights

London Stansted Airport to Copenhagen flights

London Luton Airport to Faro flights

Top 9 airlines flying from Washington, D.C. to London

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£334	Average£667	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£390	Average£663	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air France	Cheapest£464	Average£656	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£464	Average£643	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£474	Average£625	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£481	Average£775	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Iberia	Cheapest£487	Average£636	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
KLM	Cheapest£505	Average£612	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Lufthansa	Cheapest£523	Average£744	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from Washington, D.C. to London?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to London?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington, D.C. to London.

Can Cheapflights find flights from Washington, D.C. to London with no change fees?

Certainly. Search results for flights to London from Washington, D.C. shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Washington, D.C. to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington, D.C. today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Washington, D.C. to London from £168

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/3. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Washington, D.C. to London are usually found in January or October, booked 73 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Washington, D.C. to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Washington, D.C. to London

Cheapest flights from Washington, D.C. to LondonExplore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Find flights from Washington, D.C. to London within your budget

Best time to book a flight from Washington, D.C. to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington, D.C. with our price prediction graph.

Travel insights for flights from Washington, D.C. to London

Get recent, data-driven insights about flights from Washington, D.C. to London including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to London?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to London. Price data was last updated on 17 January 2025.

What is the cheapest month to book a flight from Washington, D.C. to London?

What is the cheapest time of day to fly from WAS to LON?

Find hourly flight availability from Washington, D.C. to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2025.

Weekly flight availability from Washington, D.C. to London

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Washington, D.C. to London, such as Icelandair, JetBlue and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Washington, D.C. to London round-trip?

What are the cheapest airlines to fly from Washington, D.C. to London one-way?

What are the most popular routes from Washington, D.C. to London?

What are the most reliable airlines from Washington, D.C. to London?

What are the cheapest flights from Washington, D.C. to London?

Can I find deals for flights from Washington, D.C. to London that include hotel bookings?

How can I find direct flights from Washington, D.C. to London?

Can I find deals for business class flights from Washington, D.C. to London?

What is the cheapest month to book a flight from Washington, D.C. to London?

Travelling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Washington, D.C. to London

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to London?

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to London?

Can Cheapflights find flights from Washington, D.C. to London with no change fees?

Can Cheapflights notify me if prices for flights from Washington, D.C. to London become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington, D.C. to London
Explore the most affordable flight options available from Washington, D.C. to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.