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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 €257 and round-trip from €462. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 19:05
      7h 10m
      LHR 06:15
      Washington D.C. - London | Wed, Oct 28 | British Airways
      LHR 12:15
      8h 25m
      IAD 15:40
      London - Washington D.C. | Wed, Nov 4 | British Airways
      €661 €931
      28% off
      28% off
      €931 €661
    • IAD 19:05
      7h 10m
      LHR 06:15
      Washington D.C. - London | Tue, Oct 27 | British Airways
      LHR 16:25
      8h 30m
      IAD 19:55
      London - Washington D.C. | Tue, Nov 3 | British Airways
      €661 €931
      28% off
      28% off
      €931 €661
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Mon, Nov 16 | Scandinavian Airlines
      LHR 18:40
      27h 35m
      IAD 17:15
      London - Washington D.C. | Sun, Nov 22 | Scandinavian Airlines
      €462 €931
      50% off
      50% off
      €931 €462
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Wed, Nov 11 | Scandinavian Airlines
      LHR 10:20
      11h 55m
      IAD 17:15
      London - Washington D.C. | Wed, Nov 18 | Scandinavian Airlines
      €470
      50% off
      €931 €470
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Sat, Dec 5 | Scandinavian Airlines
      LHR 06:40
      17h 10m
      IAD 18:50
      London - Washington D.C. | Sat, Dec 12 | Scandinavian Airlines
      €478
      49% off
      €931 €478
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Wed, Nov 4 | Scandinavian Airlines
      LHR 10:20
      11h 55m
      IAD 17:15
      London - Washington D.C. | Wed, Nov 11 | Scandinavian Airlines
      €479
      49% off
      €931 €479
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Thu, Nov 12 | Scandinavian Airlines
      LHR 10:20
      11h 55m
      IAD 17:15
      London - Washington D.C. | Thu, Nov 19 | Scandinavian Airlines
      €481
      48% off
      €931 €481
    • IAD 20:30
      16h 10m
      LHR 17:40
      Washington D.C. - London | Sat, Nov 14 | Scandinavian Airlines
      LHR 10:20
      13h 30m
      IAD 18:50
      London - Washington D.C. | Sat, Nov 21 | Scandinavian Airlines
      €485
      48% off
      €931 €485
    • IAD 20:30
      14h 30m
      LHR 16:00
      Washington D.C. - London | Thu, Nov 5 | Scandinavian Airlines
      LHR 10:20
      11h 55m
      IAD 17:15
      London - Washington D.C. | Mon, Nov 9 | Scandinavian Airlines
      €486
      48% off
      €931 €486
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
      LON 15:00
      6h
      Nonstop
      WAS 16:00
      London - Washington D.C. | Wed, Oct 21 | Normal Airline
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    • Cheapest
      IAD 20:40
      18h 50m
      1 stop
      LHR 19:30
      Washington D.C. - London | Sun, Oct 25 | Icelandair
      €257 €416
      38% off
      38% off
      €416 €257
    • Cheapest
      IAD 19:40
      10h 10m
      1 stop
      LHR 10:50
      Washington D.C. - London | Sun, Nov 1 | Icelandair
      €257 €416
      38% off
      38% off
      €416 €257
    • Cheapest
      IAD 20:40
      10h 10m
      1 stop
      LHR 10:50
      Washington D.C. - London | Sat, Oct 31 | Icelandair
      €257 €416
      38% off
      38% off
      €416 €257
    • Cheapest
      IAD 19:40
      18h 50m
      1 stop
      LHR 19:30
      Washington D.C. - London | Sat, Nov 28 | Icelandair
      €257
      38% off
      €416 €257
    • Cheapest
      IAD 20:40
      10h 10m
      1 stop
      LHR 10:50
      Washington D.C. - London | Thu, Oct 29 | Icelandair
      €257
      38% off
      €416 €257
    • IAD 19:40
      10h 10m
      1 stop
      LHR 10:50
      Washington D.C. - London | Sun, Nov 15 | Icelandair
      €258
      38% off
      €416 €258
    • IAD 19:40
      10h 10m
      1 stop
      LHR 10:50
      Washington D.C. - London | Tue, Nov 17 | Icelandair
      €259
      38% off
      €416 €259
    • IAD 19:40
      18h 50m
      1 stop
      LHR 19:30
      Washington D.C. - London | Mon, Dec 7 | Icelandair
      €265
      36% off
      €416 €265
    • IAD 16:30
      18h 10m
      1 stop
      LHR 15:40
      Washington D.C. - London | Tue, Nov 10 | ITA Airways
      €266
      36% off
      €416 €266
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
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    • Cheapest nonstop
      IAD 18:20
      7h 20m
      Nonstop
      LHR 06:40
      Washington D.C. - London | Tue, Dec 29 | United Airlines
      €284 €612
      54% off
      54% off
      €612 €284
    • IAD 20:45
      7h 25m
      Nonstop
      LHR 09:10
      Washington D.C. - London | Thu, Jan 7 | Virgin Atlantic
      €337 €612
      45% off
      45% off
      €612 €337
    • IAD 22:15
      7h 35m
      Nonstop
      LHR 10:50
      Washington D.C. - London | Thu, Dec 10 | United Airlines
      €348 €612
      43% off
      43% off
      €612 €348
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Mon, Nov 9 | Virgin Atlantic
      €394
      36% off
      €612 €394
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Nov 4 | Virgin Atlantic
      €399
      35% off
      €612 €399
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Tue, Nov 10 | Virgin Atlantic
      €400
      35% off
      €612 €400
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Tue, Nov 3 | Virgin Atlantic
      €411
      33% off
      €612 €411
    • IAD 19:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Oct 28 | Virgin Atlantic
      €416
      32% off
      €612 €416
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Nov 11 | Virgin Atlantic
      €416
      32% off
      €612 €416
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
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    • Cheapest nonstop
      IAD 18:20
      7h 20m
      Nonstop
      LHR 06:40
      Washington D.C. - London | Tue, Dec 29 | United Airlines
      €284 €612
      54% off
      54% off
      €612 €284
    • IAD 20:45
      7h 25m
      Nonstop
      LHR 09:10
      Washington D.C. - London | Thu, Jan 7 | Virgin Atlantic
      €337 €612
      45% off
      45% off
      €612 €337
    • IAD 22:15
      7h 35m
      Nonstop
      LHR 10:50
      Washington D.C. - London | Thu, Dec 10 | United Airlines
      €348 €612
      43% off
      43% off
      €612 €348
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Mon, Nov 9 | Virgin Atlantic
      €394
      36% off
      €612 €394
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Nov 4 | Virgin Atlantic
      €399
      35% off
      €612 €399
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Tue, Nov 10 | Virgin Atlantic
      €400
      35% off
      €612 €400
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Tue, Nov 3 | Virgin Atlantic
      €411
      33% off
      €612 €411
    • IAD 19:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Oct 28 | Virgin Atlantic
      €416
      32% off
      €612 €416
    • IAD 18:55
      7h 25m
      Nonstop
      LHR 07:20
      Washington D.C. - London | Wed, Nov 11 | Virgin Atlantic
      €416
      32% off
      €612 €416
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
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    • IAD 19:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Fri, Oct 30 | Iberia
      €508 €765
      34% off
      34% off
      €765 €508
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Tue, Dec 1 | British Airways
      €461 €765
      40% off
      40% off
      €765 €461
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Tue, Dec 1 | American Airlines
      €538 €765
      30% off
      30% off
      €765 €538
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Mon, Nov 30 | Iberia
      €455
      41% off
      €765 €455
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Sun, Nov 15 | British Airways
      €309
      60% off
      €765 €309
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Sun, Nov 8 | Iberia
      €444
      42% off
      €765 €444
    • IAD 19:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Sat, Oct 31 | British Airways
      €501
      35% off
      €765 €501
    • IAD 19:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Tue, Oct 27 | Iberia
      €459
      40% off
      €765 €459
    • IAD 18:05
      7h 10m
      Nonstop
      LHR 06:15
      Washington D.C. - London | Tue, Dec 29 | American Airlines
      €382
      50% off
      €765 €382
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
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    • Cheapest nonstop
      IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Wed, Oct 21 | Virgin Atlantic
      €425 €829
      49% off
      49% off
      €829 €425
    • IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Mon, Oct 19 | Virgin Atlantic
      €425 €829
      49% off
      49% off
      €829 €425
    • IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Sun, Oct 18 | Virgin Atlantic
      €425 €829
      49% off
      49% off
      €829 €425
    • IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Tue, Oct 20 | Virgin Atlantic
      €429
      48% off
      €829 €429
    • IAD 22:25
      7h 25m
      Nonstop
      LHR 10:50
      Washington D.C. - London | Sun, Oct 18 | Iberia
      €436
      47% off
      €829 €436
    • IAD 22:25
      7h 25m
      Nonstop
      LHR 10:50
      Washington D.C. - London | Tue, Oct 20 | Iberia
      €443
      47% off
      €829 €443
    • IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Fri, Oct 23 | Virgin Atlantic
      €469
      43% off
      €829 €469
    • IAD 23:20
      7h 35m
      Nonstop
      LHR 10:55
      Washington D.C. - London | Sat, Oct 24 | Virgin Atlantic
      €469
      43% off
      €829 €469
    • IAD 22:05
      7h 35m
      Nonstop
      LHR 10:40
      Washington D.C. - London | Thu, Oct 22 | Virgin Atlantic
      €469
      43% off
      €829 €469
    • WAS 13:00
      17h 25m
      1 stop
      LON 14:00
      Washington D.C. - London | Mon, Oct 19 | Normal Airline
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Displayed flight fares from Washington D.C. to London are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

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

What is the cheapest month for one-way flights from Dulles International Airport to Heathrow Airport?

Data is based on average one-way flight prices from Dulles International Airport to Heathrow Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Dulles International Airport to Heathrow Airport, the best time to buy is in October, with an average price of €462. You’ll want to avoid June, when the average price can reach as high as €890.

€890
€676
€462
€248
  • €462
    Oct
  • €470
    Nov
  • €614
    Dec
  • €480
    Jan
  • €480
    Feb
  • €536
    Mar
  • €567
    Apr
  • €707
    May
  • €890
    Jun
  • €506
    Jul
  • €504
    Aug
  • €476
    Sep

What is the cheapest day of the week to fly from Dulles International Airport to Heathrow Airport?

The data is based on the past 12 months and shows the average ticket prices from Dulles International Airport to Heathrow Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Dulles International Airport to Heathrow Airport is Sunday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

€658
€545
€431
€318
    Cheapest
  • €588
    Mon
  • €518
    Tue
  • €568
    Wed
  • €542
    Thu
  • €590
    Fri
  • €658
    Sat
  • €431
    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 €257) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From €257
ITA Airways
From €266
Air Canada
From €284
United Airlines
From €286
Virgin Atlantic
From €291
Delta Air Lines
From €293
Aer Lingus
From €297
Lufthansa
From €301
British Airways
From €302
Iberia
From €307

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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

    Nonstop

    06:25

    KEF

    S M - W T F -
    Search

  2. FI450

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Nonstop

    11:55

    LHR

    S M T W T F S

  3. AZ619

    Dulles International Airport

    16:30

    IAD

    8h 45m

    Nonstop

    07:15

    FCO

    - M - W - F S
    Search

  4. AZ202

    Leonardo da Vinci–Fiumicino Airport

    07:50

    FCO

    2h 50m

    Nonstop

    09:40

    LHR

    S M T W T F S

  5. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Nonstop

    06:25

    KEF

    S M - W T F -
    Search

  6. FI204

    Keflavík International Airport

    07:40

    KEF

    3h 15m

    Nonstop

    12:55

    CPH

    S M T W T F S

  7. SK505

    Copenhagen Airport

    15:00

    CPH

    2h

    Nonstop

    16:00

    LHR

    S M T W T F S

  8. AC8724

    Dulles International Airport

    09:55

    IAD

    1h 38m

    Nonstop

    11:33

    YUL

    S M T W T F S
    Search

  9. AC864

    Montréal-Pierre Elliott Trudeau International Airport

    18:40

    YUL

    6h 50m

    Nonstop

    06:30

    LHR

    S M T W T F S

  10. AZ619

    Dulles International Airport

    16:30

    IAD

    8h 45m

    Nonstop

    07:15

    FCO

    - M - W - F S
    Search

  11. AZ204

    Leonardo da Vinci–Fiumicino Airport

    13:50

    FCO

    2h 50m

    Nonstop

    15:40

    LHR

    S M T W T F S

  12. FI644

    Dulles International Airport

    20:30

    IAD

    5h 55m

    Nonstop

    06:25

    KEF

    S M - W T F -
    Search

  13. FI454

    Keflavík International Airport

    16:10

    KEF

    3h 10m

    Nonstop

    20:20

    LHR

    S M T W T F S

  14. UA3602

    Dulles International Airport

    17:50

    IAD

    1h 58m

    Nonstop

    19:48

    YUL

    S M T W T F S
    Search

  15. UA8296

    Montréal-Pierre Elliott Trudeau International Airport

    18:40

    YUL

    6h 50m

    Nonstop

    06:30

    LHR

    - M T - T F 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 5,907.82 km
Cheapest one-way ticket price €257
Cheapest return ticket price €462

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 33 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 15 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 6 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 €538 in December, the most expensive month to book this route.
  • 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 39 km, by taxi about 50 minutes.
    • The distance from Heathrow Airport to downtown is about 23 km, by taxi about 40 minutes.
    • The distance from London Luton Airport to downtown is about 44 km, 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 €257, and round-trip fares start from €462. The current lowest fare is a Icelandair flight departing on Sun, Oct 25; 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 35 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 €488. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to Heathrow Airport operates around 41 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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