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London Heathrow Airport to Dulles International Airport flight
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Cheap Flight Deals from London Heathrow Airport to Dulles International Airport

Search for flights from London to Washington D.C. and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • LHR21:25
        25h 15m
        1 stop
        IAD17:40
        London - Washington D.C.|Fri, Apr 26|Icelandair
        £236£401
        41% OFF
        41% OFF
        £401£236
      • LHR21:25
        25h 15m
        1 stop
        IAD17:40
        London - Washington D.C.|Thu, May 2|Icelandair
        £237£401
        41% OFF
        41% OFF
        £401£237
      • LHR21:25
        25h 15m
        1 stop
        IAD17:40
        London - Washington D.C.|Wed, Apr 24|Icelandair
        £243£401
        39% OFF
        39% OFF
        £401£243
      • LHR07:15
        15h 25m
        1 stop
        IAD17:40
        London - Washington D.C.|Sat, Apr 27|British Airways
        £246
        £246
      • LHR07:25
        15h 15m
        1 stop
        IAD17:40
        London - Washington D.C.|Sun, May 5|British Airways
        £248
        £248
      • LHR07:55
        14h 45m
        1 stop
        IAD17:40
        London - Washington D.C.|Mon, May 6|British Airways
        £257
        £257
      • LHR07:40
        15h
        1 stop
        IAD17:40
        London - Washington D.C.|Thu, Apr 25|British Airways
        £259
        £259
      • LHR19:30
        27h 10m
        2 stops
        IAD17:40
        London - Washington D.C.|Thu, Apr 25|Scandinavian Airlines
        £260
        £260
      • LHR07:40
        15h
        1 stop
        IAD17:40
        London - Washington D.C.|Fri, Apr 26|British Airways
        £268
        £268
      • LHR07:55
        14h 45m
        1 stop
        IAD17:40
        London - Washington D.C.|Wed, May 1|British Airways
        £273
        £273
      • LHR13:00
        3h 5m
        Direct
        IAD14:00
        London - Washington D.C.|Wed, Apr 24|Icelandair
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from London Heathrow Airport to Dulles International Airport

See which airlines fly from London to Washington D.C.. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Icelandair
From £236
Iberia
From £308
Scandinavian Airlines
From £350
Vueling Airlines
From £430
WestJet
From £460
Virgin Atlantic
From £467
Brussels Airlines
From £474
Lufthansa
From £475
Delta Air Lines
From £483
Air Canada
From £494
ANA airlines
Find more flights and airlines

Find Cheaper Flights from London to Washington D.C.

Explore other flights from London to Washington D.C. to find the best alternative options.

  • Cheapest
    easyJet
    LGW
    06:00
    16h 40m
    1 transfer
    IAD
    17:40
    London Gatwick Airport - Dulles International Airport
    Wed, May 1easyJet
    £187
  • Norse Atlantic Airways
    LGW
    10:45
    30h 15m
    2 transfer
    DCA
    12:00
    London Gatwick Airport - Ronald Reagan Washington National Airport
    Tue, Apr 30Norse Atlantic Airways
    £201
  • easyJet
    SEN
    11:25
    35h 15m
    2 transfer
    IAD
    17:40
    London Southend Airport - Dulles International Airport
    Wed, May 8easyJet
    £263
  • easyJet
    SEN
    11:25
    35h 15m
    2 transfer
    IAD
    17:40
    London Southend Airport - Dulles International Airport
    Wed, May 8easyJet
    £263
    Find More Flights
Flight Schedule from London Heathrow Airport to Dulles International Airport

Check the schedule for flights from London to Washington D.C. and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. EI149

    Aer Lingus

    06:45

    LHR

    1.3h

    08:05

    DUB

    SMTWT-S
    Search

  2. OG881

    PLAY Airline

    11:35

    DUB

    2.7h

    13:15

    KEF

    S-TWT-S

  3. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS

  4. EI151

    Aer Lingus

    07:40

    LHR

    1.3h

    09:00

    DUB

    SMTWTF-
    Search

  5. FI417

    Icelandair

    12:15

    DUB

    2.7h

    13:55

    KEF

    SMTWTFS

  6. FI645

    Icelandair

    16:50

    KEF

    6.4h

    19:15

    IAD

    SMTWTFS

  7. BA800

    British Airways

    07:55

    LHR

    3.1h

    10:00

    KEF

    SMTWTFS
    Search

  8. FI645

    Icelandair

    16:50

    KEF

    6.4h

    19:15

    IAD

    SMTWTFS

  9. BA800

    British Airways

    07:55

    LHR

    3.1h

    10:00

    KEF

    SMTWTFS
    Search

  10. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS

  11. FI451

    Icelandair

    13:05

    LHR

    3.2h

    15:15

    KEF

    SMTWTFS
    Search

  12. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS

  13. FI451

    Icelandair

    13:05

    LHR

    3.2h

    15:15

    KEF

    SMTWTFS
    Search

  14. FI645

    Icelandair

    16:50

    KEF

    6.4h

    19:15

    IAD

    SMTWTFS

  15. IB7486

    Iberia

    17:10

    LHR

    2.2h

    20:20

    BCN

    SMTWTFS
    Search

  16. OG615

    PLAY Airline

    22:40

    BCN

    4.7h

    01:20

    KEF

    S-T-T--

  17. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS

  18. EI183

    Aer Lingus

    21:10

    LHR

    1.3h

    22:30

    DUB

    SMTWTFS
    Search

  19. OG881

    PLAY Airline

    11:35

    DUB

    2.7h

    13:15

    KEF

    S-TWT-S

  20. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS

  21. FI455

    Icelandair

    21:25

    LHR

    3.3h

    23:40

    KEF

    SMTWTFS
    Search

  22. OG141

    PLAY Airline

    15:00

    KEF

    6.7h

    17:40

    IAD

    S-TWTFS
Find more flights and airlines

London Heathrow Airport to Dulles International Airport Flights Info

Flight distance5,907.82km
Cheapest one-way ticket price£235
Cheapest return ticket price£400

FAQs for London Heathrow Airport to Dulles International Airport Flights

  • How long does it take to fly from London Heathrow Airport (LHR) to Dulles International Airport (IAD)?

    It takes around 8 hours 3 minutes to fly from London Heathrow Airport (LHR) to London Heathrow Airport(IAD).

  • How many daily flights are there from London Heathrow Airport (LHR) to Dulles International Airport (IAD)?

    There are around 15 daily flights from London Heathrow Airport (LHR) to Dulles International Airport (IAD).

  • When are flight tickets from London Heathrow Airport (LHR) to Dulles International Airport (IAD) the cheapest?

    Tickets cost around £1,287 in July, making it the cheapest month to book. London Heathrow Airport (LHR) to Dulles International Airport (IAD) is a popular route, so don't forget to book your tickets in advance.

  • When are flight tickets from London Heathrow Airport (LHR) to Dulles International Airport (IAD) most expensive?

    The route from London Heathrow Airport (LHR) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around £2,059 in April, the most expensive month to book this route.

  • Which airline operates the most direct flights from London Heathrow Airport (LHR) to Dulles International Airport (IAD)?

    United Airlines is a very popular airline operating an average of 2619 flights per month.

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