Cheap flights from Washington Dulles Intl Airport to London Heathrow Airport

Round-trip
1 adult
Economy
From?
To?
Sun 10/31
Sun 11/7

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Washington Dulles Intl to London Heathrow Airport.
View current United Kingdom travel restrictions

Flight information for Washington Dulles Intl Airport to London Heathrow Airport
(IAD to LHR)

Find info about flight duration, direct flights, and airports for your flight from Washington Dulles Intl Airport to London Heathrow Airport
Best Price Found$404The best flight deal from Washington Dulles Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is $404
Fastest flight time7h 20mThe fastest flight from Washington Dulles Intl Airport to London Heathrow Airport takes 7h 20m
Direct flightsSatDirect flights go from Washington Dulles Intl Airport to London Heathrow Airport on Saturday. Airlines offering direct flights are: Finnair, American Airlines and British Airways.

How to get the cheapest flight ticket from Washington Dulles Intl Airport to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Washington Dulles Intl Airport to London Heathrow Airport?

October

The cheapest time of year to fly to London Heathrow Airport from Washington Dulles Intl Airport is October. Most expensive is June

What is the cheapest airline that flies to London Heathrow Airport from Washington Dulles Intl Airport?

SWISS

Air France, Icelandair, and KLM are the most popular carriers operating from Washington Dulles Intl Airport to London Heathrow Airport

How far in advance should you book Washington Dulles Intl Airport to London Heathrow Airport flights?

40 days before

The cheapest time to buy a flight from Washington Dulles Intl Airport to London Heathrow Airport is approximately 40 days to departure


Easily compare round-trip flights from Washington Dulles Intl Airport to London Heathrow Airport

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Washington Dulles Intl Airport to London Heathrow Airport by changing tabs
TAP AIR PORTUGAL
Feb 21
IAD5:20 pmWashington Dulles Intl
14h 10m
1 stop
LHR7:30 amLondon Heathrow
Feb 27
LHR7:25 amLondon Heathrow
13h 15m
1 stop
IAD8:40 pmWashington Dulles Intl
SAS
Mar 23
IAD2:15 pmWashington Dulles Intl
23h 20m
1 stop
LHR1:35 pmLondon Heathrow
Mar 30
LHR2:45 amLondon Heathrow
13h 15m
1 stop
IAD4:00 pmWashington Dulles Intl
Virgin Atlantic
Jan 11
IAD12:02 pmWashington Dulles Intl
9h 53m
1 stop
LHR9:55 pmLondon Heathrow
Jan 21
LHR11:00 amLondon Heathrow
11h 21m
1 stop
IAD10:21 pmWashington Dulles Intl
TAP AIR PORTUGAL
Mar 7
IAD5:20 pmWashington Dulles Intl
18h 15m
1 stop
LHR11:35 amLondon Heathrow
Mar 21
LHR2:00 amLondon Heathrow
19h 40m
1 stop
IAD9:40 pmWashington Dulles Intl
TAP AIR PORTUGAL
Mar 11
IAD5:20 pmWashington Dulles Intl
19h 20m
1 stop
LHR12:40 pmLondon Heathrow
Mar 20
LHR8:25 amLondon Heathrow
13h 15m
1 stop
IAD9:40 pmWashington Dulles Intl
Virgin Atlantic
Nov 27
IAD12:02 pmWashington Dulles Intl
11h 38m
1 stop
LHR11:40 pmLondon Heathrow
Dec 6
LHR11:05 amLondon Heathrow
11h 26m
1 stop
IAD10:31 pmWashington Dulles Intl

Find the cheapest one-way flights from Washington Dulles Intl Airport to London Heathrow Airport

If you're looking for one-way flights from Washington Dulles Intl Airport to London Heathrow Airport, view some of our deals below provided by Aer Lingus, Air France and TAP AIR PORTUGAL
TAP AIR PORTUGAL
Jan 10
IAD5:20 pmWashington Dulles Intl
18h 15m
1 stop
LHR11:35 amLondon Heathrow
Multiple Airlines
Dec 9
IAD7:51 amWashington Dulles Intl
25h 44m
3 stops
LHR9:35 amLondon Heathrow
Air France
Dec 9
IAD7:51 amWashington Dulles Intl
24h 54m
2 stops
LHR8:45 amLondon Heathrow

Search last-minute flights to London Heathrow Airport from Washington Dulles Intl Airport

Find and compare flight prices for your last-minute flight from Washington Dulles Intl Airport to London Heathrow Airport
Turkish Airlines
Nov 3
IAD7:35 pmWashington Dulles Intl
35h 00m
1 stop
LHR6:35 amLondon Heathrow
Nov 10
LHR4:10 pmLondon Heathrow
26h 45m
1 stop
IAD6:55 pmWashington Dulles Intl
Icelandair
Nov 3
IAD4:35 pmWashington Dulles Intl
10h 15m
1 stop
LHR2:50 amLondon Heathrow
Nov 10
LHR7:15 amLondon Heathrow
10h 55m
1 stop
IAD6:10 pmWashington Dulles Intl
Multiple Airlines
Nov 5
IAD3:40 pmWashington Dulles Intl
17h 45m
2 stops
LHR9:25 amLondon Heathrow
Nov 8
LHR4:15 pmLondon Heathrow
24h 45m
2 stops
IAD5:00 pmWashington Dulles Intl
TAP AIR PORTUGAL
Nov 3
IAD8:40 amWashington Dulles Intl
18h 45m
2 stops
LHR3:25 amLondon Heathrow
Nov 7
LHR7:25 amLondon Heathrow
13h 15m
1 stop
IAD8:40 pmWashington Dulles Intl
Virgin Atlantic
Nov 1
IAD1:05 pmWashington Dulles Intl
10h 35m
1 stop
LHR11:40 pmLondon Heathrow
Nov 10
LHR9:30 amLondon Heathrow
12h 49m
1 stop
IAD10:19 pmWashington Dulles Intl
Turkish Airlines
Nov 2
IAD7:35 pmWashington Dulles Intl
36h 30m
1 stop
LHR8:05 amLondon Heathrow
Nov 9
LHR11:15 amLondon Heathrow
31h 40m
1 stop
IAD6:55 pmWashington Dulles Intl

Best airlines flying from Washington Dulles Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Washington Dulles Intl Airport to London Heathrow Airport with momondo
AirlineRatingFree CancellationPrice
SAS
PriceFrom $355
Free Cancellation
Rating
8.1
8.7

Boarding

8.2

Comfort

8.7

Crew

7.6

Entertainment

7.6

Food

Reviews

Don't choose KAYAK. They put you into a difficult position which is next to impossible to solve.

1 / 10
Icelandair
PriceFrom $395
Free Cancellation
Rating
7.4
7.4

Boarding

7.0

Comfort

7.8

Crew

7.4

Entertainment

6.7

Food

Reviews

Good Morning - we were unable to take the flight from Dublin to Reykjavik because it was delayed and we couldn't risk missing out connection to Denver. At the beginning of our trip the flight from Reyykjavik to Dublin was canceled without telling us and we had to get a different airline on that leg as well. . . When we called the airline, they were closed and unable to help. When we called Kayak, i couldn't understand the person and they were unable to help as well! We purchased the insurance for the trip and sure hope that we can get some help from Iceland Air and from Kayak.

1 / 10
WOW air
PriceFrom $410
Free Cancellation
Rating
0.0
Delta
PriceFrom $415
Free Cancellation
Rating
8.2
8.2

Boarding

8.4

Comfort

8.3

Crew

8.1

Entertainment

8.0

Food

Reviews

Great

1 / 10
Air Canada
PriceFrom $471
Free Cancellation
Rating
7.5
7.8

Boarding

7.3

Comfort

8.1

Crew

7.4

Entertainment

6.0

Food

Reviews

awesome

1 / 10
SWISS
PriceFrom $473
Free Cancellation
Rating
8.5
8.7

Boarding

8.6

Comfort

8.9

Crew

8.0

Entertainment

8.4

Food

Reviews

Great flight

1 / 10
Lufthansa
PriceFrom $473
Free Cancellation
Rating
7.4
7.6

Boarding

7.5

Comfort

8.0

Crew

7.1

Entertainment

7.2

Food

Reviews

My luggage got delayed, trying to reach out the airline and no updates for me where my luggage is and when it will be delivered to me.

1 / 10
United Airlines
PriceFrom $480
Free Cancellation
Rating
6.9
7.3

Boarding

6.7

Comfort

7.5

Crew

6.7

Entertainment

6.2

Food

Reviews

Seats were very small. The plane felt very cramped. Lots of turbulence. Horrible flight

1 / 10
KLM
PriceFrom $481
Free Cancellation
Rating
7.9
8.0

Boarding

8.2

Comfort

8.4

Crew

7.3

Entertainment

7.4

Food

Reviews

Great flight Will go again!

1 / 10
Air France
PriceFrom $492
Free Cancellation
Rating
7.8
7.9

Boarding

7.8

Comfort

8.3

Crew

7.2

Entertainment

7.8

Food

Reviews

Poor communication from boarding staff, airport staff not a clue. Communication on board was un decipherable and airline lost baggage.

1 / 9

  • Are airlines flying from Washington Dulles Intl to London Heathrow offering flexible cancellation due to COVID-19?

    Some of our partner airlines flying from Washington Dulles Intl to London Heathrow are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are United Airlines, British Airways, and Lufthansa. You can search for the full list of airlines like United Airlines that are offering this flexibility.

  • How far is Washington Dulles Intl to London Heathrow by plane?

    A flight from Washington Dulles Intl to London Heathrow will travel around 3664.4 mi. By plane, this route typically takes 9h 05m.


Can I fly to London Heathrow from Washington Dulles Intl right now?

Information is based on travel restrictions from Washington Dulles Intl to London Heathrow

Most visitors from Washington Dulles Intl need to provide a negative COVID-19 test result and/or quarantine to enter London Heathrow.

COVID-19 testing requirements
Visitors from Washington Dulles Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to London Heathrow.

Quarantine requirements
Visitors from Washington Dulles Intl are not required to quarantine after entering London Heathrow.

Documents
Mandatory passenger locator form - Submit the form any time in the 48 hours before arriving in the UK. Show the form when checking in your plane, train or ferry to the UK.

Managed quarantine package for Scotland - All travelers arriving directly to Scotland are required to book their Managed Quarantine Package prior to travel.

COVID-19 testing package - All travelers must book and pay for a COVID-19 Testing Package prior to travel to England and Scotland.


Can I fly back to Washington Dulles Intl from London Heathrow?

Returning to Washington Dulles Intl from London Heathrow

COVID-19 testing requirements
Visitors from London Heathrow must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington Dulles Intl.

Quarantine requirements
Visitors from London Heathrow are not required to quarantine after entering Washington Dulles Intl.

If you are planning to travel to London Heathrow Airport at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Washington Dulles Intl Airport to London Heathrow Airport

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Washington to London Gatwick Airport Flights
Fastest flight time9h 35m
Cheapest price$411
Washington to London Heathrow Airport Flights
Fastest flight time7h 05m
Cheapest price$428
Washington to London Stansted Airport Flights
Fastest flight time11h 15m
Cheapest price$471
Washington to London Luton Airport Flights
Fastest flight time11h 05m
Cheapest price$474
Washington to London City Airport Flights
Fastest flight time10h 35m
Cheapest price$579
Washington to London Southend Airport Flights
Fastest flight time20h 40m
Cheapest price$679

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