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Dulles International Airport to Heathrow Airport flight

Explore the cheapest one-way and round-trip flights from Dulles International Airport to Heathrow Airport over the next 90 days, with one-way fares from € 246 and round-trip from € 477. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        IAD 19:05
        7h 10m
        Direct
        LHR 06:15
        Washington D.C. - London | Wed, Oct 28 | British Airways
        LHR 12:15
        8h 25m
        Direct
        IAD 15:40
        London - Washington D.C. | Wed, Nov 4 | British Airways
        € 649 € 916
        28% off
        28% off
        € 916 € 649
      • IAD 19:05
        7h 10m
        Direct
        LHR 06:15
        Washington D.C. - London | Tue, Oct 27 | British Airways
        LHR 16:25
        8h 30m
        Direct
        IAD 19:55
        London - Washington D.C. | Tue, Nov 3 | British Airways
        € 650 € 916
        28% off
        28% off
        € 916 € 650
      • IAD 20:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Thu, Nov 5 | Scandinavian Airlines
        LHR 10:20
        11h 55m
        1 stop
        IAD 17:15
        London - Washington D.C. | Mon, Nov 9 | Scandinavian Airlines
        € 477 € 916
        48% off
        48% off
        € 916 € 477
      • IAD 20:20
        20h 20m
        1 stop
        LHR 21:40
        Washington D.C. - London | Sat, Oct 10 | Scandinavian Airlines
        LHR 06:40
        15h 20m
        1 stop
        IAD 17:00
        London - Washington D.C. | Sat, Oct 17 | Scandinavian Airlines
        € 477
        48% off
        € 916 € 477
      • IAD 21:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Wed, Oct 28 | Scandinavian Airlines
        LHR 10:20
        11h 55m
        1 stop
        IAD 17:15
        London - Washington D.C. | Wed, Nov 4 | Scandinavian Airlines
        € 477
        48% off
        € 916 € 477
      • IAD 20:30
        31h 50m
        1 stop
        LHR 09:20
        Washington D.C. - London | Thu, Nov 12 | Scandinavian Airlines
        LHR 19:30
        26h 45m
        1 stop
        IAD 17:15
        London - Washington D.C. | Tue, Nov 17 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Mon, Nov 9 | Scandinavian Airlines
        LHR 10:20
        13h 30m
        1 stop
        IAD 18:50
        London - Washington D.C. | Sat, Nov 14 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Sat, Nov 7 | Scandinavian Airlines
        LHR 19:30
        28h 20m
        1 stop
        IAD 18:50
        London - Washington D.C. | Fri, Nov 13 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Mon, Nov 2 | Scandinavian Airlines
        LHR 10:20
        11h 55m
        1 stop
        IAD 17:15
        London - Washington D.C. | Mon, Nov 9 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:30
        14h 30m
        1 stop
        LHR 16:00
        Washington D.C. - London | Wed, Nov 11 | Scandinavian Airlines
        LHR 10:20
        11h 55m
        1 stop
        IAD 17:15
        London - Washington D.C. | Mon, Nov 16 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:20
        14h 40m
        1 stop
        LHR 16:00
        Washington D.C. - London | Sun, Oct 18 | Scandinavian Airlines
        LHR 06:40
        15h 20m
        1 stop
        IAD 17:00
        London - Washington D.C. | Fri, Oct 23 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:20
        14h 40m
        1 stop
        LHR 16:00
        Washington D.C. - London | Sat, Oct 17 | Scandinavian Airlines
        LHR 10:20
        11h 40m
        1 stop
        IAD 17:00
        London - Washington D.C. | Thu, Oct 22 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:20
        12h 15m
        1 stop
        LHR 13:35
        Washington D.C. - London | Fri, Oct 16 | Scandinavian Airlines
        LHR 19:30
        26h 30m
        1 stop
        IAD 17:00
        London - Washington D.C. | Wed, Oct 21 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • IAD 20:20
        14h 40m
        1 stop
        LHR 16:00
        Washington D.C. - London | Thu, Oct 15 | Scandinavian Airlines
        LHR 19:30
        26h 30m
        1 stop
        IAD 17:00
        London - Washington D.C. | Wed, Oct 21 | Scandinavian Airlines
        € 478
        48% off
        € 916 € 478
      • WAS 13:00
        17h 25m
        1 stop
        LON 14:00
        Washington D.C. - London | Sat, Sep 26 | Normal Airline
        LON 15:00
        6h
        Direct
        WAS 16:00
        London - Washington D.C. | Mon, Sep 28 | Normal Airline
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      • Cheapest nonstop
        IAD 18:55
        7h 25m
        Direct
        LHR 07:20
        Washington D.C. - London | Sun, Nov 8 | Virgin Atlantic
        € 282 € 399
        28% off
        28% off
        € 399 € 282
      • IAD 18:55
        7h 25m
        Direct
        LHR 07:20
        Washington D.C. - London | Sun, Nov 8 | Delta Air Lines
        € 283 € 399
        28% off
        28% off
        € 399 € 283
      • IAD 19:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Sun, Nov 8 | Icelandair
        € 246 € 399
        38% off
        38% off
        € 399 € 246
      • IAD 20:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Sun, Oct 25 | Icelandair
        € 252
        37% off
        € 399 € 252
      • IAD 20:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Sat, Oct 31 | Icelandair
        € 253
        37% off
        € 399 € 253
      • IAD 20:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Thu, Oct 29 | Icelandair
        € 253
        37% off
        € 399 € 253
      • IAD 19:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Sun, Nov 15 | Icelandair
        € 254
        36% off
        € 399 € 254
      • IAD 19:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Tue, Nov 17 | Icelandair
        € 254
        36% off
        € 399 € 254
      • IAD 19:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Mon, Nov 16 | Icelandair
        € 260
        35% off
        € 399 € 260
      • IAD 19:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Fri, Nov 13 | Icelandair
        € 260
        35% off
        € 399 € 260
      • IAD 19:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Mon, Nov 9 | Icelandair
        € 260
        35% off
        € 399 € 260
      • IAD 20:30
        18h 50m
        1 stop
        LHR 20:20
        Washington D.C. - London | Tue, Oct 13 | Icelandair
        € 260
        35% off
        € 399 € 260
      • IAD 19:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Fri, Nov 6 | Icelandair
        € 261
        35% off
        € 399 € 261
      • IAD 19:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Mon, Nov 2 | Icelandair
        € 261
        35% off
        € 399 € 261
      • WAS 13:00
        17h 25m
        1 stop
        LON 14:00
        Washington D.C. - London | Sat, Sep 26 | Normal Airline
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Flight prices from Dulles International Airport to Heathrow Airport are based on the average fares across airlines for the next three months, based on Trip.com’s latest data.

Trip.com Price Insights: Flights from Dulles International Airport to Heathrow Airport

Which month has the cheapest one-way flights from Dulles International Airport to Heathrow Airport?

The data is based on Trip.com data from the past 12 months and shows the average one-way fares by month from Dulles International Airport to Heathrow Airport.

Based on Trip.com data from the past 12 months, the cheapest one-way flights from Dulles International Airport to Heathrow Airport are usually in October, with an average price of € 444. June sees the highest fares, around € 875.

€ 875
€ 660
€ 444
€ 229
    Cheapest
  • € 504
    Sep
  • € 444
    Oct
  • € 462
    Nov
  • € 603
    Dec
  • € 471
    Jan
  • € 472
    Feb
  • € 527
    Mar
  • € 557
    Apr
  • € 694
    May
  • € 875
    Jun
  • € 497
    Jul
  • € 495
    Aug

Which day of the week has the cheapest flights from Dulles International Airport to Heathrow Airport?

The data is based on Trip.com data from the past 12 months and shows the average fares by each day of the week from Dulles International Airport to Heathrow Airport.

Based on Trip.com data from the past 12 months, the cheapest day for flights from Dulles International Airport to Heathrow Airport is Sunday, with average prices lower than other days. Try to avoid departing on Saturday, as fares are typically the highest.

€ 621
€ 522
€ 423
€ 324
    Cheapest
  • € 600
    Mon
  • € 523
    Tue
  • € 531
    Wed
  • € 536
    Thu
  • € 571
    Fri
  • € 621
    Sat
  • € 423
    Sun

Which airline offers the cheapest flights from Dulles International Airport to Heathrow Airport?

The cheapest airline flying from Dulles International Airport to Heathrow Airport is Icelandair (from € 246) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From € 246
ITA Airways
From € 261
Virgin Atlantic
From € 276
Air Canada
From € 279
United Airlines
From € 283
Delta Air Lines
From € 283
American Airlines
From € 292
Iberia
From € 293
British Airways
From € 294
KLM
From € 296

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What is the flight schedule from Dulles International Airport to 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. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Direct

    06:25

    KEF

    S M - W T F -
    Search

  2. FI450

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Direct

    11:55

    LHR

    S M T W T F S

  3. VS4471

    Dulles International Airport

    16:00

    IAD

    1h 56m

    Direct

    17:56

    ATL

    S M T W T F S
    Search

  4. VS4044

    Hartsfield–Jackson Atlanta International Airport

    17:05

    ATL

    8h 20m

    Direct

    06:25

    LHR

    S M T W T F S

  5. AC8724

    Dulles International Airport

    09:55

    IAD

    1h 38m

    Direct

    11:33

    YUL

    S M T W T F S
    Search

  6. AC864

    Montréal-Pierre Elliott Trudeau International Airport

    18:40

    YUL

    6h 50m

    Direct

    06:30

    LHR

    S M T W T F S

  7. AZ619

    Dulles International Airport

    16:45

    IAD

    8h 45m

    Direct

    07:30

    FCO

    S M - W - F S
    Search

  8. AZ204

    Leonardo da Vinci–Fiumicino Airport

    13:50

    FCO

    2h 50m

    Direct

    15:40

    LHR

    S M T W T F S

  9. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Direct

    06:25

    KEF

    S M - W T F -
    Search

  10. FI454

    Keflavík International Airport

    16:10

    KEF

    3h 10m

    Direct

    20:20

    LHR

    S M T W T F S

  11. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Direct

    06:25

    KEF

    S M - W T F -
    Search

  12. FI204

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Direct

    12:55

    CPH

    S M T W T F S

  13. SK1501

    Copenhagen Airport

    20:40

    CPH

    2h

    Direct

    21:40

    LHR

    S M T W T - S

  14. FI648

    Dulles International Airport

    23:20

    IAD

    5h 50m

    Direct

    09:10

    KEF

    - - T - T - S
    Search

  15. FI450

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Direct

    11:55

    LHR

    S M T W T F S

  16. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Direct

    06:25

    KEF

    S M - W T F -
    Search

  17. FI216

    Keflavík International Airport

    16:30

    KEF

    3h 15m

    Direct

    21:45

    CPH

    S M T W T F S

  18. SK1501

    Copenhagen Airport

    20:40

    CPH

    2h

    Direct

    21:40

    LHR

    S M T W T - S
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About Dulles International Airport and Heathrow Airport

Learn about Dulles International Airport (IAD) and Heathrow Airport (LHR) — including location, terminals, transportation, and travel tips.

Flight distance 5,907.82km
Cheapest one-way ticket price € 246
Cheapest return ticket price € 477

FAQs for Dulles International Airport to Heathrow Airport Flights

  • How long is the flight from Dulles International Airport to Heathrow Airport?

    Dulles International Airport to Heathrow Airport takes about 6 hours 43 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 16 daily flights from Dulles International Airport (IAD) to Heathrow Airport (LHR).
  • The earliest flight from Dulles International Airport to Heathrow Airport departs at 17:45, and the last departs at 22:25, with about 7 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dulles International Airport (IAD) to Heathrow Airport (LHR) is quite popular. Without considering departure times or holidays, tickets cost around € 576 in December, the most expensive month to book this route.
  • The earliest flight departs from Dulles International Airport (IAD) at 08:30 and arrives in Heathrow Airport (LHR) at 20:55.
  • The latest flight departs from Dulles International Airport (IAD) at 19:25 and arrives in Heathrow Airport (LHR) at 07:45.
    • The distance from London Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
    • The distance from 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.
  • British Airways is a very popular airline operating an average of 5126 flights per month.
  • One-way flights from Dulles International Airport to Heathrow Airport currently start from € 246, and round-trip fares start from € 477. The current lowest fare is a Icelandair flight departing on Sun, Nov 8; prices may vary depending on availability.
  • Yes. British Airways, United Airlines and Virgin Atlantic operate direct flights from Dulles International Airport to Heathrow Airport, with an average flight time of 6 hours 39 minutes, and around 41 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Dulles International Airport to Heathrow Airport is € 477. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to Heathrow Airport operates around 42 weekly flights, mainly by British Airways, United Airlines and Virgin Atlantic. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and Heathrow Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.