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Washington D.C. to London flight
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Dulles International Airport to London Heathrow Airport flight
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Cheap Flight Deals from Dulles International Airport to London Heathrow Airport

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

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • IAD12:50
        19h
        1 stop
        LHR12:50
        Washington D.C. - London|Tue, May 7|United Airlines
        £230£451
        49% OFF
        49% OFF
        £451£230
      • IAD08:50
        18h 10m
        1 stop
        LHR08:00
        Washington D.C. - London|Thu, May 9|United Airlines
        £285£451
        37% OFF
        37% OFF
        £451£285
      • IAD08:50
        18h 10m
        1 stop
        LHR08:00
        Washington D.C. - London|Wed, May 8|United Airlines
        £298£451
        34% OFF
        34% OFF
        £451£298
      • IAD22:10
        18h 30m
        1 stop
        LHR21:40
        Washington D.C. - London|Sun, May 12|United Airlines
        £301
        £301
      • IAD17:15
        17h 45m
        1 stop
        LHR16:00
        Washington D.C. - London|Tue, May 7|Scandinavian Airlines
        £309
        £309
      • IAD08:50
        18h 15m
        1 stop
        LHR08:05
        Washington D.C. - London|Sun, May 5|United Airlines
        £317
        £317
      • IAD08:20
        18h 40m
        2 stops
        LHR08:00
        Washington D.C. - London|Fri, May 10|United Airlines
        £329
        £329
      • IAD17:34
        10h 1m
        1 stop
        LHR08:35
        Washington D.C. - London|Sat, May 25|United Airlines
        £335
        £335
      • IAD09:05
        19h 20m
        1 stop
        LHR09:25
        Washington D.C. - London|Tue, May 14|United Airlines
        £338
        £338
      • IAD22:25
        18h 15m
        1 stop
        LHR21:40
        Washington D.C. - London|Fri, May 24|United Airlines
        £342
        £342
      • IAD13:00
        3h 5m
        Direct
        LHR14:00
        Washington D.C. - London|Thu, May 9|United Airlines
        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 Dulles International Airport to London Heathrow Airport

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

Alaska Airlines
From £190
Icelandair
From £195
United Airlines
From £230
PLAY Airline
From £238
TAP Air Portugal
From £323
Sun Country Airlines
From £325
Delta Air Lines
From £335
Air France
From £358
KLM
From £358
British Airways
From £363
ANA airlines
Find more flights and airlines

Find Cheaper Flights from Washington D.C. to London

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

  • Cheapest
    PLAY Airline
    IAD
    18:50
    13h 50m
    1 transfer
    LTN
    13:40
    Dulles International Airport - London Luton Airport
    Tue, Jul 23PLAY Airline
    £155
  • PLAY Airline
    IAD
    18:50
    10h 50m
    1 transfer
    STN
    10:40
    Dulles International Airport - London Stansted Airport
    Mon, Jul 29PLAY Airline
    £159
  • PLAY Airline
    IAD
    18:50
    10h 50m
    1 transfer
    STN
    10:40
    Dulles International Airport - London Stansted Airport
    Mon, Jul 29PLAY Airline
    £159
    Find More Flights
Flight Schedule from Dulles International Airport to London Heathrow Airport

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. KL5871

    KLM

    07:05

    IAD

    1.9h

    08:59

    ATL

    SMTWTFS
    Search

  2. KL6043

    KLM

    17:10

    ATL

    8.3h

    06:25

    LHR

    SMTWTFS

  3. DL4010

    Delta Air Lines

    12:21

    IAD

    1.4h

    13:46

    JFK

    S--WTFS
    Search

  4. AA100

    American Airlines

    18:10

    JFK

    7.2h

    06:20

    LHR

    SMTWTFS

  5. UA1649

    United Airlines

    17:08

    IAD

    1.6h

    18:44

    BOS

    SM-WTFS
    Search

  6. AA108

    American Airlines

    20:35

    BOS

    6.5h

    08:05

    LHR

    SMTWTFS

  7. UA2497

    United Airlines

    17:15

    IAD

    2.3h

    18:33

    ORD

    SMTWTFS
    Search

  8. UA938

    United Airlines

    21:30

    ORD

    8.3h

    11:45

    LHR

    SMTWTFS

  9. UA2497

    United Airlines

    17:15

    IAD

    2.3h

    18:33

    ORD

    SMTWTFS
    Search

  10. AA046

    American Airlines

    20:40

    ORD

    7.7h

    10:20

    LHR

    SMTWTFS

  11. AF3455

    Air France

    17:41

    IAD

    2.0h

    19:39

    ATL

    -MTWTFS
    Search

  12. AF3553

    Air France

    21:55

    ATL

    8.3h

    11:10

    LHR

    SMTWT-S

  13. FI644

    Icelandair

    20:30

    IAD

    5.9h

    06:25

    KEF

    SMTWTFS
    Search

  14. FI450

    Icelandair

    07:40

    KEF

    3.3h

    11:55

    LHR

    SMTWTFS

  15. DL5982

    Delta Air Lines

    22:15

    IAD

    7.3h

    Direct

    10:30

    LHR

    SMTWTFS
    Search

  16. VS022

    Virgin Atlantic

    22:15

    IAD

    7.3h

    Direct

    10:30

    LHR

    SMTWTFS
    Search

  17. TP234

    TAP Air Portugal

    22:30

    IAD

    7.2h

    10:40

    LIS

    S-TWTFS
    Search

  18. TP1352

    TAP Air Portugal

    10:05

    LIS

    2.7h

    12:45

    LHR

    SMTWTFS
Find more flights and airlines

Dulles International Airport to London Heathrow Airport Flights Info

Flight distance5,907.82km
Cheapest one-way ticket price£229
Cheapest return ticket price£410

FAQs for Dulles International Airport to London Heathrow Airport Flights

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

    It takes around 7 hours 17 minutes to fly from Dulles International Airport (IAD) to Dulles International Airport(LHR).

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

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

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

    Tickets cost around £464 in July, making it the cheapest month to book. Dulles International Airport (IAD) to London Heathrow Airport (LHR) is a popular route, so don't forget to book your tickets in advance.

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

    The route from Dulles International Airport (IAD) to London Heathrow Airport (LHR) is quite popular. Without considering departure times or holidays, tickets cost around £723 in June, the most expensive month to book this route.

  • What is the transportation method from the main airport to downtown in London?

    • The distance from London Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
    • The distance from London Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
    • The distance from London Luton Airport to downtown is about 44km, by taxi about 1 hour.

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

    United Airlines is a very popular airline operating an average of 2336 flights per month.

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