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Cheap flights from London Heathrow Airport to District of Columbia from £312

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAD
30 Mar — 6 Apr1
1 adult

Cheap flight deals from Heathrow to District of Columbia

Keep the following information in mind while searching for Heathrow to District of Columbia flight deals. Data was last updated 25 March 2025.

Round-trip from

£427

One-way from

£312

Popular in

July

Cheapest in

February

Average price

£525

Good round-trip deal

£541 or less

Good one-way deal

£631 or less
Lufthansa
  • Lufthansa
  • 29/4-10/5
  • 1 total stop
  • 25h 24m total
  • London to District of Columbia
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20/5
  • 20/5
  • 2 total stops
  • 47h 30m total
  • London to District of Columbia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from London Heathrow to District of Columbia.
Search Deals
Price to beat on a one-way flight from London Heathrow to District of Columbia.
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Find flight deals from Heathrow to District of Columbia

Cheapest flights from Heathrow to District of Columbia
Explore the most affordable flight options available from Heathrow to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Tue 29/412:15LHR - IAD
Nonstop8h 10mLufthansa
Sat 10/522:26IAD - LHR
1 stop17h 14mLufthansa
Deal found 23/3£427
Fri 25/414:10LHR - IAD
1 stop29h 01mAustrian Airlines
Sat 26/417:47IAD - LHR
1 stop36h 23mAustrian Airlines
Deal found 24/3£428
Tue 25/320:40LHR - IAD
1 stop26h 45mIcelandair
Mon 31/320:30IAD - LHR
1 stop10h 25mIcelandair
Deal found 24/3£433
Sat 24/512:40LHR - DCA
1 stop28h 21mLufthansa
Sat 31/506:00DCA - LHR
1 stop9h 40mLufthansa
Deal found 24/3£434
Wed 30/408:25LHR - DCA
1 stop13h 30mIcelandair
Tue 6/510:10DCA - LHR
1 stop15h 20mIcelandair
Deal found 24/3£437
Fri 9/506:40LHR - IAD
1 stop18h 19mScandinavian Airlines
Fri 16/522:05IAD - LHR
1 stop12h 55mScandinavian Airlines
Deal found 25/3£442
Wed 7/508:25LHR - DCA
1 stop13h 30mJetBlue
Wed 14/506:09DCA - LHR
1 stop9h 36mJetBlue
Deal found 24/3£445
Wed 11/608:40LHR - DCA
2 stops30h 39mAir Canada
Wed 18/606:00DCA - LHR
3 stops21h 35mAir Canada
Deal found 25/3£481
Fri 28/316:20LHR - IAD
Nonstop8h 20mUnited Airlines
Sat 29/317:52IAD - LHR
1 stop31h 38mUnited Airlines
Deal found 24/3£488
Mon 3/1106:00LHR - IAD
1 stop14h 15mTAP AIR PORTUGAL
Sat 8/1117:30IAD - LHR
1 stop20h 25mTAP AIR PORTUGAL
Deal found 25/3£500
Thu 24/410:30LHR - DCA
2 stops15h 38mMultiple Airlines
Wed 30/412:55DCA - LHR
2 stops12h 35mMultiple Airlines
Deal found 24/3£513
Fri 25/408:40LHR - IAD
3 stops18h 44mMultiple Airlines
Sun 27/414:00IAD - LHR
2 stops15h 00mMultiple Airlines
Deal found 25/3£513

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to District of Columbia 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 25 March 2025.
Use the filters below to find and compare flights from London Heathrow Airport to District of Columbia that are best for you.

Fly from

Heathrow

Fly to

District of Columbia

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 29/4

12:15-15:25

Nonstop8h 10m

Washington, D.C. Dulles Intl

Sat 10/5

22:26-20:40

1 stop17h 14m

£427

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 25/4

16:40-19:50

Nonstop8h 10m

Washington, D.C. Dulles Intl

Sat 26/4

17:47-11:10

1 stop36h 23m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 24/5

12:40-12:01

1 stop28h 21m

Washington, D.C. Reagan-National

Sat 31/5

06:00-20:40

1 stop9h 40m

£434

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 30/4

08:25-16:55

1 stop13h 30m

Washington, D.C. Reagan-National

Tue 6/5

10:10-06:30

1 stop15h 20m

£437

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 9/5

06:40-19:59

1 stop18h 19m

Washington, D.C. Dulles Intl

Fri 16/5

22:05-16:00

1 stop12h 55m

£442

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 7/5

08:25-16:55

1 stop13h 30m

Washington, D.C. Reagan-National

Wed 14/5

06:09-20:45

1 stop9h 36m

£445

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 24/4

13:05-19:20

1 stop11h 15m

Washington, D.C. Dulles Intl

Wed 30/4

20:30-20:20

1 stop18h 50m

£452

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 11/6

08:40-10:19

2 stops30h 39m

Washington, D.C. Reagan-National

Wed 18/6

06:00-08:35

3 stops21h 35m

£481

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 24/4

10:30-21:08

2 stops15h 38m

Washington, D.C. Reagan-National

Wed 30/4

12:55-06:30

2 stops12h 35m

£513

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 25/4

08:40-22:24

3 stops18h 44m

Washington, D.C. Dulles Intl

Sun 27/4

14:00-10:00

2 stops15h 00m

£513

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 46 results
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Best time to book a flight from Heathrow to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to District of Columbia

What is the cheapest month to book a flight from London Heathrow Airport to District of Columbia?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to District of Columbia (average of £599). Flying from London Heathrow Airport to District of Columbia in July is currently the most expensive (average of £947). 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 DC?

Find hourly flight availability from Heathrow to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2025.

When flying from London Heathrow Airport to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to District of Columbia

Explore weekly flight availability from Heathrow to District of Columbia. 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 25 March 2025.

The most flights from LHR to USDC 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 District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia 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 District of Columbia when rainfall is around 66.0 mm.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated 25 March 2025.
To help decide which airline to fly from London to District of Columbia, see what other customers have to say about Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,890 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very Good
7,890 reviews
Check prices

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

8.0

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 District of Columbia. 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 to fly from London Heathrow Airport to District of Columbia one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £335. Users have also found prices from £428 and £445 on Icelandair and Aer Lingus, respectively.

  • What are the most reliable airlines from London Heathrow Airport to District of Columbia?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London Heathrow Airport to District of Columbia on time: KLM (90%), Air France (90%), Delta (90%).

  • What are the cheapest flights from London Heathrow Airport to District of Columbia?

    On average you can expect to pay £1,180 for a flight from London Heathrow Airport to District of Columbia. The cheapest flight overall is £478 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £332.

  • Can I find deals for flights from Heathrow to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Heathrow to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to District of Columbia?

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

  • Can I find deals for business class flights from Heathrow to District of Columbia?

    Yes. Cheapflights offers flight deals from Heathrow to District of Columbia 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 District of Columbia?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to District of Columbia (average of £599). Flying from London Heathrow Airport to District of Columbia in July is currently the most expensive (average of £947). 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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Alternative routes for Heathrow to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Heathrow to District of Columbia

Discover the top 10 airlines that operate flights from Heathrow to District of Columbia. 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£287Average£517FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£331Average£790FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£378Average£551FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Brussels AirlinesCheapest£396Average£742FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
JetBlueCheapest£396Average£563FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
TAP AIR PORTUGALCheapest£422Average£600FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£455Average£595FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air FranceCheapest£457Average£631FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£469Average£641FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£477Average£716FlexibilityNo cancel feeOn-time75%
Search KLM 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 District of Columbia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to District of Columbia. 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 Heathrow to District of Columbia?

Cheapflights helps you find that perfect flight to District of Columbia from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to District of Columbia with no change fees?

Yes, we can. To see specific flights from Heathrow to District of Columbia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Heathrow to District of Columbia become cheaper?

Yes! Start tracking prices for Heathrow to District of Columbia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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