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London to Dulles International Airport flight
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Cheap Flights from London to Dulles International Airport

  • One way
  • Round-trip
      • Cheapest nonstop
        LHR12:45
        8h 10m
        Direct
        IAD15:55
        London - Washington D.C.|Tue, Jul 8|Finnair
        £1,046£1,471
        28% OFF
        28% OFF
        £1,471£1,046

        Choose Finnair flights from London to Washington D.C.. The one-way direct flight with Finnair departs from Heathrow Airport on Tue, Jul 8, arriving at Dulles International Airport. One-way Prices start from £1,046 including taxes and charges.

      • LHR12:45
        8h 10m
        Direct
        IAD15:55
        London - Washington D.C.|Wed, Jul 9|Finnair
        £1,294£1,471
        12% OFF
        12% OFF
        £1,471£1,294

        Choose Finnair flights from London to Washington D.C.. The one-way direct flight with Finnair departs from Heathrow Airport on Wed, Jul 9, arriving at Dulles International Airport. One-way Prices start from £1,294 including taxes and charges.

      • LGW10:35
        15h 15m
        1 stop
        IAD20:50
        London - Washington D.C.|Thu, May 1|TAP Air Portugal
        £332£1,471
        77% OFF
        77% OFF
        £1,471£332

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from London Gatwick Airport on Thu, May 1, arriving at Dulles International Airport. One-way Prices start from £332 including taxes and charges.

      • LHR19:50
        24h 30m
        1 stop
        IAD15:20
        London - Washington D.C.|Tue, May 20|TAP Air Portugal
        £338
        £338

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Tue, May 20, arriving at Dulles International Airport. One-way Prices start from £338 including taxes and charges.

      • LHR06:00
        14h 20m
        1 stop
        IAD15:20
        London - Washington D.C.|Thu, May 15|TAP Air Portugal
        £342
        £342

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Thu, May 15, arriving at Dulles International Airport. One-way Prices start from £342 including taxes and charges.

      • LHR19:50
        24h 30m
        1 stop
        IAD15:20
        London - Washington D.C.|Mon, May 19|TAP Air Portugal
        £346
        £346

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Mon, May 19, arriving at Dulles International Airport. One-way Prices start from £346 including taxes and charges.

      • LHR06:00
        14h 20m
        1 stop
        IAD15:20
        London - Washington D.C.|Thu, May 8|TAP Air Portugal
        £355
        £355

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Thu, May 8, arriving at Dulles International Airport. One-way Prices start from £355 including taxes and charges.

      • LGW16:25
        27h 55m
        1 stop
        IAD15:20
        London - Washington D.C.|Mon, May 5|TAP Air Portugal
        £366
        £366

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from London Gatwick Airport on Mon, May 5, arriving at Dulles International Airport. One-way Prices start from £366 including taxes and charges.

      • LHR08:00
        17h 50m
        1 stop
        IAD20:50
        London - Washington D.C.|Wed, May 14|TAP Air Portugal
        £374
        £374

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Wed, May 14, arriving at Dulles International Airport. One-way Prices start from £374 including taxes and charges.

      • LHR08:00
        12h 20m
        1 stop
        IAD15:20
        London - Washington D.C.|Thu, Jun 5|TAP Air Portugal
        £375
        £375

        Choose TAP Air Portugal flights from London to Washington D.C.. The one-way connecting flight with TAP Air Portugal departs from Heathrow Airport on Thu, Jun 5, arriving at Dulles International Airport. One-way Prices start from £375 including taxes and charges.

      • LON1:00 PM
        3h 5m
        Direct
        IAD2:00 PM
        London - Washington D.C.|Sun, May 4|Finnair
        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 to Dulles International Airport

British Airways logoBritish AirwaysIcelandair logoIcelandairDelta Air Lines logoDelta Air LinesAer Lingus logoAer LingusVirgin Atlantic logoVirgin AtlanticTAP Air Portugal logoTAP Air PortugalLufthansa logoLufthansaScandinavian Airlines logoScandinavian AirlinesNorse Atlantic Airways logoNorse Atlantic AirwaysUnited Airlines logoUnited AirlinesJetblue Airways logoJetblue AirwaysTurkish Airlines logoTurkish AirlinesIberia logoIberiaAir Transat logoAir TransatAmerican Airlines logoAmerican Airlines

Airports in London

  • 14.96 km from central LondonClosest
    London City Airport
    Tickets From
    £544
  • 44.63 km from central London
    London Luton Airport
    Tickets From
    £225
  • 20.15 km from central London
    Heathrow Airport
    Tickets From
    £285
  • 52.43 km from central LondonCheapest
    London Stansted Airport
    Tickets From
    £214
  • 60.36 km from central London
    London Southend Airport
    Tickets From
    £279
  • 38.83 km from central London
    London Gatwick Airport
    Tickets From
    £286

Flight Schedule from London to Dulles International Airport

Flight info.
Departure
Arrival
Weekly Schedule

  1. BA832

    British Airways

    06:15

    LHR

    1.4h

    07:40

    DUB

    SMTWTF-
    Search

  2. FI419

    Icelandair

    14:15

    DUB

    2.7h

    15:55

    KEF

    S--W---

  3. FI645

    Icelandair

    16:50

    KEF

    6.5h

    19:20

    IAD

    SMTWTFS

  4. BA456

    British Airways

    06:15

    LHR

    2.4h

    09:40

    MAD

    SMTWTFS
    Search

  5. AT973

    Royal Air Maroc

    13:35

    MAD

    1.8h

    14:25

    CMN

    S-TWTFS

  6. AT218

    Royal Air Maroc

    18:45

    CMN

    8.0h

    21:45

    IAD

    S-T-T-S

  7. BA800

    British Airways

    07:05

    LHR

    3.1h

    09:10

    KEF

    SMTWTFS
    Search

  8. FI645

    Icelandair

    16:50

    KEF

    6.5h

    19:20

    IAD

    SMTWTFS

  9. EI151

    Aer Lingus

    07:40

    LHR

    1.3h

    09:00

    DUB

    SMTWTF-
    Search

  10. FI419

    Icelandair

    14:15

    DUB

    2.7h

    15:55

    KEF

    S--W---

  11. FI645

    Icelandair

    16:50

    KEF

    6.5h

    19:20

    IAD

    SMTWTFS

  12. BA472

    British Airways

    08:50

    LHR

    2.2h

    12:00

    BCN

    SMTWTFS
    Search

  13. TP1031

    TAP Air Portugal

    11:25

    BCN

    2.0h

    12:25

    LIS

    SMTWTFS

  14. TP233

    TAP Air Portugal

    17:30

    LIS

    8.3h

    20:50

    IAD

    S-TWTFS

  15. TP1335

    TAP Air Portugal

    10:35

    LGW

    2.8h

    13:25

    LIS

    SMTWTFS
    Search

  16. TP233

    TAP Air Portugal

    17:30

    LIS

    8.3h

    20:50

    IAD

    S-TWTFS

  17. OG801

    PLAY Airline

    11:40

    STN

    3.1h

    13:45

    KEF

    SMTWTFS
    Search

  18. FI645

    Icelandair

    16:50

    KEF

    6.5h

    19:20

    IAD

    SMTWTFS

  19. FI471

    Icelandair

    13:00

    LGW

    3.3h

    15:15

    KEF

    ---W-FS
    Search

  20. FI645

    Icelandair

    16:50

    KEF

    6.5h

    19:20

    IAD

    SMTWTFS

  21. BA482

    British Airways

    16:15

    LHR

    2.3h

    19:30

    BCN

    SMTWTFS
    Search

  22. TP1041

    TAP Air Portugal

    06:00

    BCN

    1.9h

    06:55

    LIS

    SMTWTFS

  23. TP231

    TAP Air Portugal

    11:55

    LIS

    8.4h

    15:20

    IAD

    -M-WT-S

  24. TP1369

    TAP Air Portugal

    20:25

    LHR

    2.8h

    23:10

    LIS

    SMTWTFS
    Search

  25. TP231

    TAP Air Portugal

    11:55

    LIS

    8.4h

    15:20

    IAD

    -M-WT-S
Find more flights and airlines

Flight Info of Flights from London to Dulles International Airport

Cheapest return ticket price£504
Cheapest one-way flight price£335
Off-season travel monthMarch
Peak season for travelJanuary

FAQs for London to Dulles International Airport Flights

  • When are flight tickets from London (LON) to Washington D.C. (WAS) the cheapest?

    Airlines adjust prices for flights from London to Washington D.C. based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much are flights from London (LON) to Washington D.C. (WAS) cost?

    According to Trip.com's data, the lowest price is around £959.

  • How long is the flight from London (LON) to Washington D.C. (WAS)?

    It takes about 8 hours 15 minutes to fly from London (LON) to Washington D.C. (WAS).

  • What are the most popular airlines that fly from London (LON) to Washington D.C. (WAS)?

    Airlines with flights from London (LON) to Washington D.C. (WAS): American Airlines, Delta Air Lines, Austrian Airlines, United Airlines, Lufthansa, KLM, Iberia, Virgin Atlantic, British Airways, Air France and Finnair.

  • What's the most popular airline for direct flights from London (LON) to Washington D.C. (WAS)?

    Austrian Airlines operates 22 direct flights from London (LON) to Washington D.C. (WAS).

  • How many airports in Washington D.C. (WAS)?

    There are 2 airport(s) in Washington D.C. (WAS): Ronald Reagan Washington National Airport and Dulles International Airport.

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