Flight Routes from Washington DC to London Heathrow

Trip type

Our cheapest offers for flights from Washington DC to London Heathrow

Here you can compare cheap flights from Washington DC (DCA) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Washington DC
London Heathrow
Outbound
06/25/26
2 Stopovers (LGA, JFK, YYZ)
AA4393, AC8555, AC0856
20h 38min
Return
06/30/26
2 Stopovers (YYZ, LGA)
AC0853, AC0712, AA4773
15h 16min
American Airlines, Air Canada ?
$1,166
Best option
Washington DC
London Heathrow
Outbound
06/25/26
1 Stopover (YOW)
AC8870, AC0888
12h 50min
Return
06/30/26
1 Stopover (YUL)
AC0865, AC8825
12h 43min
Air Canada
$1,184
Washington DC
London Heathrow
Outbound
06/25/26
1 Stopover (YOW)
AC8870, AC0888
12h 50min
Return
06/30/26
2 Stopovers (BRU, YUL)
AC6345, AC0833, AC8823
26h 48min
Air Canada
$1,205
Washington DC
London Heathrow
Outbound
06/25/26
1 Stopover (EWR)
UA4430, UA0122
32h 05min
Return
06/30/26
4 Stopovers (DUS, OTP, LHR, BOS)
EW9463, EW9792, AA7192, AA6964, AA4047
43h 14min
United Airlines ?
$1,214
Washington DC
London Heathrow
Outbound
06/25/26
1 Stopover (JFK)
VS2003, VS0026
09h 05min
Return
06/30/26
1 Stopover (JFK)
VS4029, VS1633
11h 52min
Virgin Atlantic Airways ?
$1,265
Washington DC
London Heathrow
Outbound
06/25/26
1 Stopover (JFK)
AY4254, AY3787
22h 00min
Return
06/30/26
1 Stopover (JFK)
AY5517, AY4119
19h 54min
Finnair
$1,289
Prices based on recent searches, subject to last-minute changes
Page 1 / 1

Tips and tricks to help you find cheap flights from Washington DC to London Heathrow

Favorite airline: United Airlines
The favorite airline for flights from Washington DC to London Heathrow is United Airlines.
United Airlines
31 %
Air Canada
23 %
Finnair
23 %
Cheapest weekday: Monday
The cheapest day of departure is Monday. You can save up to 49 % when you fly on these days of the week.
Favourite connection: via New York
Flights with a stopover in New York are the most popular connection for this route.
Route
bookings
1 stopover New York - John F. Kennedy International Airport, NY
10h 35min, from 608 $US
40 %
1 stopover New York - Newark Liberty International Airport, NJ
09h 40min, from 546 $US
30 %
1 stopover Toronto - Lester B. Pearson International Airport
32h 20min, from 637 $US
20 %

Important flight information

Flight information: Washington DC - London Heathrow

Roundtrip from 1 165,81 $US
Flight duration min. 08:22
Distance 5887 km
Flights per week 1
Departure airport Airport Washington DC - Ronald Reagan National Airport, VA (DCA)
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative flights to London Heathrow
Flight destinations with a similar price
Flight destinations with a similar price