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Outbound flight: 08/12/21
18:30 IAD
06:50 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
direct
Finnair
$510
Check
Outbound flight: 08/12/21
13:16 IAD
07:05 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
1 Stopover
KLM
$535
Check
Outbound flight: 08/12/21
23:15 IAD
20:45 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
1 Stopover
Turkish Airlines
$542
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Outbound flight: 08/12/21
18:30 IAD
10:15 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
1 Stopover
Brussels Airlines
$554
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Outbound flight: 08/12/21
22:05 IAD
14:40 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
1 Stopover
United Airlines
$567
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Outbound flight: 12/16/21
22:40 IAD
10:40 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
direct
American Airlines
Return flight: 01/04/22
17:00 LHR
20:25 IAD
London Heathrow
Washington DC - Dulles International Airport, DC
direct
Finnair
$602
Check
Outbound flight: 12/16/21
22:40 IAD
10:40 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
direct
Finnair
Return flight: 01/04/22
14:15 LHR
22:15 IAD
London Heathrow
Washington DC - Dulles International Airport, DC
1 Stopover
American Airlines
$603
Check
Outbound flight: 12/16/21
18:20 IAD
06:30 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
direct
Air France
Return flight: 01/04/22
08:40 LHR
16:15 IAD
London Heathrow
Washington DC - Dulles International Airport, DC
1 Stopover
Delta Air Lines
$606
Check
Outbound flight: 08/12/21
20:35 IAD
11:55 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
1 Stopover
Icelandair
$613
Check
Outbound flight: 12/16/21
18:20 IAD
06:30 LHR
Washington DC - Dulles International Airport, DC
London Heathrow
direct
KLM
Return flight: 01/04/22
12:45 LHR
16:30 IAD
London Heathrow
Washington DC - Dulles International Airport, DC
direct
Delta Air Lines
$616
Check
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Washington DC to London-Heathrow

Favorite airline: United Airlines
26 % of travelers choose to book flights on this route with United Airlines, Lufthansa and Austrian Airlines.
United Airlines
10 %
Lufthansa
8 %
Austrian Airlines
8 %
Tip: book 2 months before departure
Save up to 53 % by booking flights 2 months before departure.
76 days before departure
Direct flights are more expensive
Compared to direct flights, flights with a stopover on this route are on average 27 % cheaper.
non stop flight
1 stop
2 stops
07h 25min
19h 25min
28h 08min
$609
$481
$1,374
The favorite connection is non-stop
Direct flights are especially popular on this route. 58 % of travelers will book a direct flight.
Route
bookings
Direct flights
07h 25min, from $609
58 %
1 stopover Zurich (Zürich)-Kloten
11h 25min, from $643
7 %
1 stopover Brussels
11h 40min, from $640
6 %
Flight information Washington DC - London Heathrow
Alternative flight routes
Cheap direct flights
Flight details Washington DC - London Heathrow
  • Flight duration: min. 07:00 / max. 07:25
  • Distance: 5908 km
  • Flights per week: 52
  • Return flight duration: min. 08:20 / max. 08:45
Top Flight Routes
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* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.