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Cheap flights from London Heathrow Airport to Washington, D.C. from £283

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 24/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
23 Dec — 30 Dec1
1 adult

The best prices from London Heathrow to Washington, D.C. are usually found in February or January, booked 52 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

£403

One-way from

£283

Popular in

August

Cheapest in

February

Average price

£676
11/3-3/4
  • 11/3-3/4
  • 2 total stops
  • 29h 15m total
  • London to Washington, D.C.
24/2
  • 24/2
  • 1 total stop
  • 14h 25m total
  • London to Washington, D.C.
High demand for flights, 11% potential price rise
Best time to find cheap flights, 2% potential price drop
Average for round-trip flights in December 2024

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

Cheapest flights from Heathrow to Washington, D.C.
Explore the most affordable flight options available from Heathrow to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2024.

Thu 26/1212:35LHR - BWI
2 stops33h 25mMultiple Airlines
Thu 9/119:30BWI - LHR
1 stop10h 20mMultiple Airlines
Deal found 17/12£554
Wed 25/1208:25LHR - DCA
1 stop16h 34mJetBlue
Thu 9/115:00DCA - LHR
1 stop9h 55mJetBlue
Deal found 17/12£572
Tue 24/1218:30LHR - IAD
1 stop31h 30mTAP AIR PORTUGAL
Mon 20/119:15IAD - LHR
1 stop21h 20mTAP AIR PORTUGAL
Deal found 17/12£575
Tue 24/1218:40LHR - IAD
1 stop26h 00mScandinavian Airlines
Mon 20/117:10IAD - LHR
2 stops16h 25mScandinavian Airlines
Deal found 17/12£611
Tue 31/1208:40LHR - IAD
1 stop12h 05mDelta
Wed 22/119:37IAD - LHR
1 stop9h 53mDelta
Deal found 17/12£635
Tue 31/1211:10LHR - DCA
1 stop11h 57mAir Canada
Thu 23/116:10DCA - LHR
1 stop10h 00mAir Canada
Deal found 17/12£635
Tue 31/1214:30LHR - DCA
1 stop13h 07mUnited Airlines
Fri 24/116:10DCA - LHR
1 stop10h 00mUnited Airlines
Deal found 17/12£665
Mon 30/1206:30LHR - IAD
1 stop18h 50mMultiple Airlines
Mon 6/117:35IAD - LHR
1 stop35h 05mMultiple Airlines
Deal found 16/12£696
Tue 31/1214:30LHR - IAD
1 stop24h 16mAir Canada
Wed 25/610:25IAD - LHR
2 stops15h 05mAir Canada
Deal found 17/12£698
Tue 31/1211:10LHR - IAD
2 stops17h 49mUnited Airlines
Tue 7/122:09IAD - LHR
1 stop32h 06mUnited Airlines
Deal found 17/12£699
Tue 31/1206:10LHR - BWI
2 stops18h 27mBritish Airways
Mon 13/113:48BWI - LHR
1 stop14h 27mBritish Airways
Deal found 18/12£702
Tue 31/1206:30LHR - BWI
2 stops16h 43mDelta
Tue 7/106:00BWI - LHR
1 stop19h 50mDelta
Deal found 17/12£709

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

Customise your flight search to find flights from Heathrow to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 28/1

20:40-17:00

1 stop25h 20m

Baltimore/Washington

Wed 23/4

18:50-14:40

1 stop14h 50m

£393

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 12/2

08:25-20:59

1 stop17h 34m

Washington, D.C. Reagan-National

Thu 20/2

15:35-05:55

1 stop9h 20m

£440

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 18/1

18:00-08:57

1 stop19h 57m

Washington, D.C. Reagan-National

Tue 21/1

18:00-09:10

1 stop10h 10m

£461

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 18/1

18:00-09:46

1 stop20h 46m

Washington, D.C. Dulles Intl

Tue 21/1

06:05-20:35

1 stop9h 30m

£462

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Fri 31/1

12:15-18:30

1 stop11h 15m

Baltimore/Washington

Fri 7/2

19:30-10:50

1 stop10h 20m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 31/1

12:15-18:25

1 stop11h 10m

Washington, D.C. Dulles Intl

Fri 7/2

19:40-10:50

1 stop10h 10m

£469

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 16/1

09:50-15:40

1 stop10h 50m

Washington, D.C. Dulles Intl

Tue 21/1

17:10-11:25

1 stop13h 15m

£472

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 31/1

21:05-15:40

2 stops23h 35m

Washington, D.C. Dulles Intl

Fri 7/2

17:10-14:35

2 stops16h 25m

£473

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 13/2

06:00-15:00

1 stop14h 00m

Washington, D.C. Dulles Intl

Tue 4/3

17:30-21:35

1 stop23h 05m

£476

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Wed 22/1

15:25-18:45

Nonstop8h 20m

Baltimore/Washington

Mon 27/1

20:30-08:40

Nonstop7h 10m

£506

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Heathrow 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 Heathrow to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Washington, D.C.. Price data was last updated on 13 December 2024.

The best time to book flights from London Heathrow Airport to Washington, D.C. is 52 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 London Heathrow Airport to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. (average of £599). Flying from London Heathrow Airport to Washington, D.C. in July is currently the most expensive (average of £898). 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 LHR to WAS?

Find hourly flight availability from Heathrow to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2024.

When flying from London Heathrow Airport to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 20% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Washington, D.C.. Price data was last updated on 16 December 2024.

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

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

Explore weekly flight availability from Heathrow to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2024.

The most flights from LHR to WAS are scheduled on a Tuesday (27 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (21 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated 18 December 2024.
See what other customers who have flown with Lufthansa, TAP AIR PORTUGAL and Austrian Airlines from London to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,604 reviews
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,349 reviews
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.7
Good
1,285 reviews
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
1,133 reviews
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.6
Good
787 reviews
8.0
Very Good
8,604 reviews

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.6

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Washington, D.C.. 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 London Heathrow Airport to Washington, D.C. round-trip?

    According to our current data, JetBlue (£440), Lufthansa (£459), and Icelandair (£465) offers the cheapest pricing from London Heathrow Airport to Washington, D.C.. JetBlue is currently priced 28% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as £372. However, be on the lookout for offers from WestJet and TAP AIR PORTUGAL, as they are both options that can get you from London Heathrow Airport to Washington, D.C. for a low price.

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

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

    Consider Air Canada (89%), Austrian Airlines (89%) or Copa Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Washington, D.C..

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

    Looking for the cheapest flight from London Heathrow Airport to Washington, D.C.? While on average our users pay £1,313, our data indicates the cheapest price to be £507. The most popular route (London Heathrow - Washington, D.C. Dulles Intl), is priced around £446.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Washington, D.C.?

  • What are some popular things to do or see while on a stopover in Reykjavik?

    Hallgrímskirkja, National Cathedral, and Harpa are currently the most popular points of interest in Reykjavik at the moment. Those on a stopover in Reykjavik interested in visiting Hallgrímskirkja, National Cathedral, or Harpa can do so by traveling 23.2 mi, 23.0 mi, and 23.3 mi, respectively from Reykjavik Keflavik Intl. Those looking to explore during their stopover in Reykjavik can hire a car from Reykjavik Keflavik Intl for about £35 per day.

  • Where are the least popular stopover locations for London Heathrow Airport to Washington, D.C. flights?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Washington, D.C. 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 London Heathrow Airport to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. (average of £599). Flying from London Heathrow Airport to Washington, D.C. in July is currently the most expensive (average of £898). 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

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Fly from Heathrow to Washington, D.C. on these airlines

Choose from the following airlines for your flight from Heathrow to Washington, D.C.. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2024.

Top 10 airlines flying from Heathrow to Washington, D.C.

Discover the top 10 airlines that operate flights from Heathrow to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£248Average£486FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£337Average£663FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest£355Average£511FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£384Average£572FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£399Average£608FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£403Average£756FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Scandinavian AirlinesCheapest£415Average£598FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
American AirlinesCheapest£418Average£774FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£431Average£649FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£455Average£674FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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 Heathrow to Washington, D.C.?

Cheapflights makes it easy to find Heathrow to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Heathrow.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Washington, D.C. flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Heathrow to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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