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Cheap flights from London Heathrow Airport to District of Columbia from £393

LHR — IAD
15 Dec — 22 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to District of Columbia

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to District of Columbia

Wed 18/1118:30 -
1 stop25h 45m
Wed 2/1222:30 -
1 stop19h 10m
Deal found 12/11£415
Sun 13/1220:35 -
1 stop26h 55m
Thu 7/119:40 -
1 stop18h 50m
Deal found 10/11£416
Fri 25/1212:15 -
Nonstop8h 25m
Tue 5/121:45 -
Nonstop7h 15m
Deal found 10/11£420
Mon 14/1220:35 -
1 stop26h 55m
Sat 23/119:40 -
1 stop18h 50m
Deal found 11/11£421
Wed 9/1212:15 -
1 stop11h 15m
Fri 22/119:40 -
1 stop18h 50m
Deal found 10/11£424
Tue 8/1220:35 -
1 stop26h 55m
Sat 23/119:40 -
1 stop10h 10m
Deal found 10/11£426
Mon 14/1220:35 -
1 stop26h 55m
Tue 5/119:40 -
1 stop18h 50m
Deal found 10/11£427
Thu 26/1106:00 -
1 stop14h 15m
Sun 29/1122:30 -
1 stop19h 10m
Deal found 13/11£427
Wed 25/1118:30 -
1 stop25h 45m
Mon 7/1217:25 -
1 stop23h 10m
Deal found 13/11£428
Thu 26/1106:00 -
1 stop14h 15m
Wed 2/1222:30 -
1 stop19h 10m
Deal found 11/11£430
Sun 27/1207:40 -
1 stop16h 33m
Tue 5/114:59 -
1 stop10h 21m
Deal found 10/11£474
Mon 23/1113:35 -
1 stop14h 08m
Sat 28/1114:08 -
1 stop12h 47m
Deal found 13/11£483

Find flight deals from Heathrow to District of Columbia

Round-trip from

£412

One-way from

£393

Popular in

June

Cheapest in

February

Average price

£527

Good round-trip deal

£550 or less

Good one-way deal

£434 or less
Icelandair
  • Icelandair
  • 1/12-10/12
  • 2 total stops
  • 45h 45m total
  • London to District of Columbia
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26/11-31/12
  • 26/11-31/12
  • 2 total stops
  • 16h 50m total
  • London to District of Columbia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£38 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from London Heathrow to District of Columbia.
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Price to beat on a one-way flight from London Heathrow to District of Columbia.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sun 6/12

19:55-15:15

1 stop24h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£396

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Fri 29/1

10:45-10:52

2 stops29h 07m

Washington, D.C. Reagan-National

Wed 31/12

00:00-06:00

Nonstop0h 00m

£443
Fastest return journey

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sun 24/1

12:15-15:40

Nonstop8h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£449

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sat 21/11

15:40-20:35

3 stops33h 55m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£452

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Mon 25/1

16:25-19:55

Nonstop8h 30m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£464

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Sat 27/2

08:50-15:45

1 stop11h 55m

Washington, D.C. Dulles Intl

Sun 2/5

20:45-12:40

1 stop10h 55m

£480

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Fri 8/1

12:20-22:55

1 stop15h 35m

Washington, D.C. Reagan-National

Wed 31/12

00:00-06:00

Nonstop0h 00m

£483

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Thu 14/1

06:30-16:45

2 stops15h 15m

Washington, D.C. Dulles Intl

Fri 29/1

18:15-10:30

1 stop11h 15m

£484

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Wed 10/2

06:30-16:40

2 stops15h 10m

Washington, D.C. Reagan-National

Mon 15/2

14:45-09:25

2 stops13h 40m

£487

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Sat 9/1

07:30-18:44

2 stops16h 14m

Washington, D.C. Reagan-National

Wed 31/12

00:00-06:00

Nonstop0h 00m

£497

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 46 resultsSorted by cheapest first
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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

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, February is the cheapest month in which you can book a flight from London Heathrow Airport to District of Columbia (average of £486). Flying from London Heathrow Airport to District of Columbia in July is currently the most expensive (average of £590). 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?

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

The most flights from LHR to USDC are scheduled on a Friday (27 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost for a return flight from London Heathrow Airport to District of Columbia?

Airfare is below average for this route at the moment.
London Heathrow Airport to District of Columbia flights typically cost between £488 and £698 in March.
The cheapest return price found within the last 5 days was £411 on Icelandair (4 Mar–30 Apr).

How far ahead should I book a flight from London Heathrow Airport to District of Columbia?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to District of Columbia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing District of Columbia

Read reviews from past customers who have flown with Austrian Airlines,Virgin Atlantic, andUnited Airlines from London Heathrow Airport to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service
Austrian Airlines
7.5
Good
982 reviews
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service
Virgin Atlantic
7.5
Good
698 reviews
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service
United Airlines
7.3
Good
10,494 reviews
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service
Lufthansa
6.8
Okay
8,295 reviews
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service
British Airways
6.7
Okay
8,279 reviews
Austrian Airlines
7.5
Good
982 reviews
Check prices

Boarding

7.6

Overall

7.5

Comfort

7.3

Entertainment

6.8

Food

6.7

Crew

8.1

Reviews

1 / 20
6.0
Good

Anonymous,Oct 2026

VIE - IAD

Flight was delayed 2 1/2 hours. they told us mechanical. Otherwise, fine service

Related info for your journey

  • How long is the flight from London Heathrow Airport to District of Columbia?

    Departing from London Heathrow Airport to District of Columbia will take you 8h 35m. The distance between London Heathrow Airport and District of Columbia is about 3664 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to District of Columbia one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £330. Users have also found prices from £338 and £343 on British Airways and Iberia, 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: Air Canada (75%), Austrian Airlines (75%), Copa Airlines (75%).

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

    On average you can expect to pay £1,212 for a flight from London Heathrow Airport to District of Columbia. The cheapest flight overall is £356 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at £353.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to District of Columbia (average of £486). Flying from London Heathrow Airport to District of Columbia in July is currently the most expensive (average of £590). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to District of Columbia

Heathrow to John F Kennedy Intl flights
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Stansted to Newark flights
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Heathrow to Hobby flights
Stansted to Miami flights
London City to Miami flights
Heathrow to O'Hare Intl flights
Heathrow to Dulles Intl flights
Luton to Miami flights
London City to Los Angeles flights
Gatwick to Los Angeles flights
Stansted to Orlando flights
Stansted to Los Angeles flights
Heathrow to Atlanta flights
London City to Orlando flights
Heathrow to Baltimore flights
Luton to LaGuardia flights
Southend to John F Kennedy Intl flights
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Heathrow to Tampa flights
Gatwick to Las Vegas flights
Gatwick to Boston flights
London City to Las Vegas flights
Heathrow to Ontario flights
Heathrow to Denver flights
London City to Boston flights
Luton to Los Angeles flights
Heathrow to Nashville flights
Luton to Orlando flights
Heathrow to Sky Harbor Intl flights
Stansted to Boston flights

Top 10 airlines flying from Heathrow to District of Columbia

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£274Average£534FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£328Average£460FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
TAP AIR PORTUGALCheapest£347Average£470FlexibilityNo cancel feeOn-timeN/A
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KLMCheapest£382Average£587FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£407Average£599FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£414Average£586FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£416Average£526FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£418Average£552FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£419Average£574FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IberiaCheapest£423Average£618FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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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