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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 CAD 410 and round-trip from CAD 733. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 7:05 PM
      7h 10m
      LHR 6:15 AM
      Washington D.C. - London | Wed, Oct 28 | British Airways
      LHR 12:15 PM
      8h 25m
      IAD 3:40 PM
      London - Washington D.C. | Wed, Nov 4 | British Airways
      CAD 1,049 CAD 1,297
      19% off
      19% off
      CAD 1,297 CAD 1,049
    • IAD 7:05 PM
      7h 10m
      LHR 6:15 AM
      Washington D.C. - London | Tue, Oct 27 | British Airways
      LHR 4:25 PM
      8h 30m
      IAD 7:55 PM
      London - Washington D.C. | Tue, Nov 3 | British Airways
      CAD 1,050 CAD 1,297
      19% off
      19% off
      CAD 1,297 CAD 1,050
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Mon, Nov 16 | Scandinavian Airlines
      LHR 6:40 PM
      27h 35m
      IAD 5:15 PM
      London - Washington D.C. | Sun, Nov 22 | Scandinavian Airlines
      CAD 733 CAD 1,297
      43% off
      43% off
      CAD 1,297 CAD 733
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Wed, Nov 11 | Scandinavian Airlines
      LHR 10:20 AM
      11h 55m
      IAD 5:15 PM
      London - Washington D.C. | Wed, Nov 18 | Scandinavian Airlines
      CAD 747
      42% off
      CAD 1,297 CAD 747
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Sat, Dec 5 | Scandinavian Airlines
      LHR 6:40 AM
      17h 10m
      IAD 6:50 PM
      London - Washington D.C. | Sat, Dec 12 | Scandinavian Airlines
      CAD 759
      41% off
      CAD 1,297 CAD 759
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Wed, Nov 4 | Scandinavian Airlines
      LHR 10:20 AM
      11h 55m
      IAD 5:15 PM
      London - Washington D.C. | Wed, Nov 11 | Scandinavian Airlines
      CAD 761
      41% off
      CAD 1,297 CAD 761
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Thu, Nov 12 | Scandinavian Airlines
      LHR 10:20 AM
      11h 55m
      IAD 5:15 PM
      London - Washington D.C. | Thu, Nov 19 | Scandinavian Airlines
      CAD 765
      41% off
      CAD 1,297 CAD 765
    • IAD 8:30 PM
      16h 10m
      LHR 5:40 PM
      Washington D.C. - London | Sat, Nov 14 | Scandinavian Airlines
      LHR 10:20 AM
      13h 30m
      IAD 6:50 PM
      London - Washington D.C. | Sat, Nov 21 | Scandinavian Airlines
      CAD 770
      41% off
      CAD 1,297 CAD 770
    • IAD 8:30 PM
      14h 30m
      LHR 4:00 PM
      Washington D.C. - London | Thu, Nov 5 | Scandinavian Airlines
      LHR 10:20 AM
      11h 55m
      IAD 5:15 PM
      London - Washington D.C. | Mon, Nov 9 | Scandinavian Airlines
      CAD 771
      41% off
      CAD 1,297 CAD 771
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | Normal Airline
      LON 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      London - Washington D.C. | Tue, Oct 20 | Normal Airline
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    • Cheapest
      IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Sun, Nov 15 | Icelandair
      CAD 410 CAD 580
      28% off
      28% off
      CAD 580 CAD 410
    • IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Tue, Nov 17 | Icelandair
      CAD 411 CAD 580
      28% off
      28% off
      CAD 580 CAD 411
    • IAD 7:40 PM
      18h 50m
      1 stop
      LHR 7:30 PM
      Washington D.C. - London | Mon, Dec 7 | Icelandair
      CAD 421 CAD 580
      27% off
      27% off
      CAD 580 CAD 421
    • IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Tue, Dec 29 | Icelandair
      CAD 422
      53% off
      CAD 905 CAD 422
    • IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Mon, Dec 7 | Icelandair
      CAD 422
      53% off
      CAD 905 CAD 422
    • IAD 4:30 PM
      18h 10m
      1 stop
      LHR 3:40 PM
      Washington D.C. - London | Sun, Dec 6 | ITA Airways
      CAD 439
      24% off
      CAD 580 CAD 439
    • IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Sat, Nov 14 | Icelandair
      CAD 441
      24% off
      CAD 580 CAD 441
    • IAD 7:40 PM
      10h 10m
      1 stop
      LHR 10:50 AM
      Washington D.C. - London | Sat, Nov 7 | Icelandair
      CAD 442
      24% off
      CAD 580 CAD 442
    • IAD 4:30 PM
      12h 10m
      1 stop
      LHR 9:40 AM
      Washington D.C. - London | Sun, Nov 29 | ITA Airways
      CAD 443
      24% off
      CAD 580 CAD 443
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      IAD 6:20 PM
      7h 20m
      Nonstop
      LHR 6:40 AM
      Washington D.C. - London | Tue, Dec 29 | United Airlines
      CAD 451 CAD 905
      50% off
      50% off
      CAD 905 CAD 451
    • IAD 8:45 PM
      7h 25m
      Nonstop
      LHR 9:10 AM
      Washington D.C. - London | Thu, Jan 7 | Virgin Atlantic
      CAD 535 CAD 905
      41% off
      41% off
      CAD 905 CAD 535
    • IAD 10:15 PM
      7h 35m
      Nonstop
      LHR 10:50 AM
      Washington D.C. - London | Thu, Dec 10 | United Airlines
      CAD 552 CAD 905
      39% off
      39% off
      CAD 905 CAD 552
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Mon, Nov 9 | Virgin Atlantic
      CAD 626
      31% off
      CAD 905 CAD 626
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Nov 4 | Virgin Atlantic
      CAD 634
      30% off
      CAD 905 CAD 634
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Tue, Nov 10 | Virgin Atlantic
      CAD 635
      30% off
      CAD 905 CAD 635
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Tue, Nov 3 | Virgin Atlantic
      CAD 653
      28% off
      CAD 905 CAD 653
    • IAD 7:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Oct 28 | Virgin Atlantic
      CAD 661
      27% off
      CAD 905 CAD 661
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Nov 11 | Virgin Atlantic
      CAD 661
      27% off
      CAD 905 CAD 661
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | Normal Airline
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    • IAD 7:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Fri, Oct 30 | Iberia
      CAD 807 CAD 1,066
      24% off
      24% off
      CAD 1,066 CAD 807
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Tue, Dec 1 | British Airways
      CAD 733 CAD 1,066
      31% off
      31% off
      CAD 1,066 CAD 733
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Tue, Dec 1 | American Airlines
      CAD 854 CAD 1,066
      20% off
      20% off
      CAD 1,066 CAD 854
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Mon, Nov 30 | Iberia
      CAD 723
      32% off
      CAD 1,066 CAD 723
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Sun, Nov 15 | British Airways
      CAD 492
      54% off
      CAD 1,066 CAD 492
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Sun, Nov 8 | Iberia
      CAD 705
      34% off
      CAD 1,066 CAD 705
    • IAD 7:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Sat, Oct 31 | British Airways
      CAD 796
      25% off
      CAD 1,066 CAD 796
    • IAD 7:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Tue, Oct 27 | Iberia
      CAD 730
      32% off
      CAD 1,066 CAD 730
    • IAD 6:05 PM
      7h 10m
      Nonstop
      LHR 6:15 AM
      Washington D.C. - London | Tue, Dec 29 | American Airlines
      CAD 606
      43% off
      CAD 1,066 CAD 606
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Tue, Oct 20 | Virgin Atlantic
      CAD 675 CAD 939
      28% off
      28% off
      CAD 939 CAD 675
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Wed, Oct 21 | Virgin Atlantic
      CAD 675 CAD 939
      28% off
      28% off
      CAD 939 CAD 675
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Sun, Oct 18 | Virgin Atlantic
      CAD 676 CAD 939
      28% off
      28% off
      CAD 939 CAD 676
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Mon, Oct 19 | Virgin Atlantic
      CAD 683
      27% off
      CAD 939 CAD 683
    • IAD 10:25 PM
      7h 25m
      Nonstop
      LHR 10:50 AM
      Washington D.C. - London | Sun, Oct 18 | Iberia
      CAD 692
      26% off
      CAD 939 CAD 692
    • IAD 10:25 PM
      7h 25m
      Nonstop
      LHR 10:50 AM
      Washington D.C. - London | Tue, Oct 20 | Iberia
      CAD 695
      26% off
      CAD 939 CAD 695
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Fri, Oct 23 | Virgin Atlantic
      CAD 745
      21% off
      CAD 939 CAD 745
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Sat, Oct 17 | Virgin Atlantic
      CAD 745
      21% off
      CAD 939 CAD 745
    • IAD 10:05 PM
      7h 35m
      Nonstop
      LHR 10:40 AM
      Washington D.C. - London | Thu, Oct 22 | Virgin Atlantic
      CAD 745
      21% off
      CAD 939 CAD 745
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | Normal Airline
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    • Cheapest nonstop
      IAD 6:20 PM
      7h 20m
      Nonstop
      LHR 6:40 AM
      Washington D.C. - London | Tue, Dec 29 | United Airlines
      CAD 451 CAD 851
      47% off
      47% off
      CAD 851 CAD 451
    • IAD 8:45 PM
      7h 25m
      Nonstop
      LHR 9:10 AM
      Washington D.C. - London | Thu, Jan 7 | Virgin Atlantic
      CAD 535 CAD 851
      37% off
      37% off
      CAD 851 CAD 535
    • IAD 10:15 PM
      7h 35m
      Nonstop
      LHR 10:50 AM
      Washington D.C. - London | Thu, Dec 10 | United Airlines
      CAD 552 CAD 851
      35% off
      35% off
      CAD 851 CAD 552
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Mon, Nov 9 | Virgin Atlantic
      CAD 626
      26% off
      CAD 851 CAD 626
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Nov 4 | Virgin Atlantic
      CAD 634
      25% off
      CAD 851 CAD 634
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Tue, Nov 10 | Virgin Atlantic
      CAD 635
      25% off
      CAD 851 CAD 635
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Tue, Nov 3 | Virgin Atlantic
      CAD 653
      23% off
      CAD 851 CAD 653
    • IAD 7:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Oct 28 | Virgin Atlantic
      CAD 661
      22% off
      CAD 851 CAD 661
    • IAD 6:55 PM
      7h 25m
      Nonstop
      LHR 7:20 AM
      Washington D.C. - London | Wed, Nov 11 | Virgin Atlantic
      CAD 661
      22% off
      CAD 851 CAD 661
    • WAS 1:00 PM
      17h 25m
      1 stop
      LON 2:00 PM
      Washington D.C. - London | Sun, Oct 18 | 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 CAD 734. You’ll want to avoid June, when the average price can reach as high as CAD 1,414.

CAD 1,414
CAD 1,074
CAD 734
CAD 394
  • CAD 734
    Oct
  • CAD 747
    Nov
  • CAD 975
    Dec
  • CAD 762
    Jan
  • CAD 763
    Feb
  • CAD 852
    Mar
  • CAD 901
    Apr
  • CAD 1,123
    May
  • CAD 1,414
    Jun
  • CAD 804
    Jul
  • CAD 800
    Aug
  • CAD 756
    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.

CAD 1,046
CAD 866
CAD 685
CAD 505
    Cheapest
  • CAD 934
    Mon
  • CAD 822
    Tue
  • CAD 902
    Wed
  • CAD 862
    Thu
  • CAD 937
    Fri
  • CAD 1,046
    Sat
  • CAD 685
    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 CAD 408) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From CAD 408
ITA Airways
From CAD 422
United Airlines
From CAD 449
Air Canada
From CAD 452
Virgin Atlantic
From CAD 462
Delta Air Lines
From CAD 466
Aer Lingus
From CAD 471
Lufthansa
From CAD 473
British Airways
From CAD 480
Iberia
From CAD 487

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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

    8:30 PM

    IAD

    5h 55m

    Nonstop

    6:25 AM

    KEF

    S M - W T F -
    Search

  2. FI450

    Reykjavik Keflavik Airport

    7:40 AM

    KEF

    3h 15m

    Nonstop

    11:55 AM

    LHR

    S M T W T F S

  3. AZ619

    Dulles International Airport

    4:30 PM

    IAD

    8h 45m

    Nonstop

    7:15 AM

    FCO

    - M - W - F S
    Search

  4. AZ202

    Fiumicino Leonardo Da Vinci Intl. Airport

    7:50 AM

    FCO

    2h 50m

    Nonstop

    9:40 AM

    LHR

    S M T W T F S

  5. FI644

    Dulles International Airport

    8:30 PM

    IAD

    5h 55m

    Nonstop

    6:25 AM

    KEF

    S M - W T F -
    Search

  6. FI204

    Reykjavik Keflavik Airport

    7:40 AM

    KEF

    3h 15m

    Nonstop

    12:55 PM

    CPH

    S M T W T F S

  7. SK505

    Copenhagen Airport

    3:00 PM

    CPH

    2h

    Nonstop

    4:00 PM

    LHR

    S M T W T F S

  8. AZ619

    Dulles International Airport

    4:30 PM

    IAD

    8h 45m

    Nonstop

    7:15 AM

    FCO

    - M - W - F S
    Search

  9. AZ204

    Fiumicino Leonardo Da Vinci Intl. Airport

    1:50 PM

    FCO

    2h 50m

    Nonstop

    3:40 PM

    LHR

    S M T W T F S

  10. FI644

    Dulles International Airport

    8:30 PM

    IAD

    5h 55m

    Nonstop

    6:25 AM

    KEF

    S M - W T F -
    Search

  11. FI454

    Reykjavik Keflavik Airport

    4:10 PM

    KEF

    3h 10m

    Nonstop

    8:20 PM

    LHR

    S M T W T F S

  12. UA3602

    Dulles International Airport

    5:50 PM

    IAD

    1h 58m

    Nonstop

    7:48 PM

    YUL

    S M T W T F S
    Search

  13. UA8296

    Montreal Pierre Elliott Trudeau Airport

    6:40 PM

    YUL

    6h 50m

    Nonstop

    6:30 AM

    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 CAD 410
Cheapest return ticket price CAD 733

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 CAD 855 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 21:45 and arrives in Heathrow Airport (LHR) at 10:00.
    • The distance from London Gatwick Airport to downtown is about 39 km. It takes about 50 minutes by taxi.
    • The distance from Heathrow Airport to downtown is about 23 km. It takes about 40 minutes by taxi.
    • The distance from London Luton Airport to downtown is about 44 km. It takes about 1 hour by taxi.
  • 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 CAD 410, and round-trip fares start from CAD 733. The current lowest fare is a Icelandair flight departing on Sun, Nov 15; 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 26 minutes, and around 40 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 CAD 776. 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.

Popular Destinations

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

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.