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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 £208 and round-trip from £410. 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, Nov 4 | British Airways
        LHR 12:15
        8h 25m
        Direct
        IAD 15:40
        London - Washington D.C. | Wed, Nov 11 | British Airways
        £558 £786
        28% off
        28% off
        £786 £558
      • IAD 19:05
        7h 10m
        Direct
        LHR 06:15
        Washington D.C. - London | Tue, Nov 3 | British Airways
        LHR 16:25
        8h 30m
        Direct
        IAD 19:55
        London - Washington D.C. | Tue, Nov 10 | British Airways
        £558 £786
        28% off
        28% off
        £786 £558
      • 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
        £410 £786
        48% off
        48% off
        £786 £410
      • 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
        £410
        48% off
        £786 £410
      • 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
        £410
        48% off
        £786 £410
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £411
        48% off
        £786 £411
      • 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
        £242 £344
        30% off
        30% off
        £344 £242
      • IAD 18:55
        7h 25m
        Direct
        LHR 07:20
        Washington D.C. - London | Sun, Nov 8 | Delta Air Lines
        £244 £344
        28% off
        28% off
        £344 £244
      • IAD 19:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Fri, Nov 13 | Icelandair
        £208 £344
        40% off
        40% off
        £344 £208
      • IAD 20:40
        18h 50m
        1 stop
        LHR 19:30
        Washington D.C. - London | Sun, Nov 1 | Icelandair
        £215
        38% off
        £344 £215
      • IAD 20:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Mon, Nov 2 | Icelandair
        £216
        37% off
        £344 £216
      • IAD 19:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Sun, Nov 8 | Icelandair
        £217
        37% off
        £344 £217
      • IAD 20:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Sat, Nov 7 | Icelandair
        £217
        37% off
        £344 £217
      • IAD 23:20
        16h
        1 stop
        LHR 20:20
        Washington D.C. - London | Sun, Oct 18 | Icelandair
        £217
        37% off
        £344 £217
      • IAD 20:40
        10h 10m
        1 stop
        LHR 10:50
        Washington D.C. - London | Thu, Nov 5 | Icelandair
        £217
        37% off
        £344 £217
      • IAD 20:30
        18h 50m
        1 stop
        LHR 20:20
        Washington D.C. - London | Tue, Oct 13 | Icelandair
        £218
        37% off
        £344 £218
      • IAD 20:30
        10h 25m
        1 stop
        LHR 11:55
        Washington D.C. - London | Sat, Oct 17 | Icelandair
        £219
        36% off
        £344 £219
      • IAD 20:30
        10h 25m
        1 stop
        LHR 11:55
        Washington D.C. - London | Fri, Sep 25 | Icelandair
        £224
        35% off
        £344 £224
      • IAD 16:30
        18h 10m
        1 stop
        LHR 15:40
        Washington D.C. - London | Tue, Nov 17 | ITA Airways
        £224
        35% off
        £344 £224
      • IAD 20:30
        18h 50m
        1 stop
        LHR 20:20
        Washington D.C. - London | Sat, Oct 3 | Icelandair
        £224
        35% off
        £344 £224
      • WAS 13:00
        17h 25m
        1 stop
        LON 14:00
        Washington D.C. - London | Sat, Sep 26 | Normal Airline
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Displayed flight fares from Dulles International Airport to Heathrow Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

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

What is the cheapest month to fly from Dulles International Airport to Heathrow Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Dulles International Airport to Heathrow Airport for each month in the Trip.com database.

Based on Trip.com's 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 £382. It is best to avoid June, when the average price can reach £752.

£752
£567
£382
£197
    Cheapest
  • £433
    Sep
  • £382
    Oct
  • £397
    Nov
  • £518
    Dec
  • £405
    Jan
  • £406
    Feb
  • £453
    Mar
  • £479
    Apr
  • £597
    May
  • £752
    Jun
  • £427
    Jul
  • £426
    Aug

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 departure day from Dulles International Airport to Heathrow Airport is Sunday, with average prices usually lower than other days. Avoid departing on Saturday as prices are typically highest on that day.

£534
£449
£363
£278
    Cheapest
  • £516
    Mon
  • £450
    Tue
  • £457
    Wed
  • £461
    Thu
  • £491
    Fri
  • £534
    Sat
  • £363
    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 £212) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Icelandair
From £212
ITA Airways
From £224
Virgin Atlantic
From £238
Air Canada
From £240
United Airlines
From £243
Delta Air Lines
From £244
American Airlines
From £251
Iberia
From £252
British Airways
From £252
KLM
From £254

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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 £208
Cheapest return ticket price £410

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 £495 in December, the most expensive month to book this route.
    • 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 £208, and round-trip fares start from £410. The current lowest fare is a Icelandair flight departing on Fri, Nov 13; 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 £410. 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.

Find Cheap Flights with Trip.com

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

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.