Flights from Washington DC to London Heathrow

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
11/03/25
1 Stopover (ATL)
VS2579, VS4044
11h 40min
Return
11/12/25
1 Stopover (ATL)
VS4087, VS2573
13h 59min
Virgin Atlantic Airways ?
$549
Best option
Washington DC
London Heathrow
Outbound
09/23/25
1 Stopover (JFK)
B61254, B60007
11h 15min
Return
09/30/25
1 Stopover (JFK)
B60020, B61355
11h 49min
JetBlue Airways ?
$552
Washington DC
London Heathrow
Outbound
10/18/25
2 Stopovers (JFK, OSL)
SK3372, SK0924, SK0803
17h 35min
Return
10/24/25
2 Stopovers (OSL, JFK)
SK0802, SK0923, SK3373
20h 14min
SAS Scandinavian Airlines
$903
Washington DC
London Heathrow
Outbound
10/05/25
1 Stopover (JFK)
B61254, B60007
11h 15min
Return
10/16/25
1 Stopover (JFK)
B60020, B61355
11h 49min
JetBlue Airways ?
$553
Washington DC
London Heathrow
Outbound
11/03/25
1 Stopover (JFK)
AY4104, AY3776
09h 37min
Return
11/12/25
1 Stopover (JFK)
AY3773, AY4119
17h 28min
Finnair
$554
Washington DC
London Heathrow
Outbound
11/03/25
1 Stopover (ATL)
VS2564, VS0104
10h 55min
Return
11/12/25
1 Stopover (BOS)
VS4011, VS2817
11h 21min
Virgin Atlantic Airways ?
$570
Washington DC
London Heathrow
Outbound
11/03/25
1 Stopover (JFK)
AY4104, AY3776
09h 37min
Return
11/12/25
1 Stopover (JFK)
AY3775, AY4119
11h 58min
Finnair ?
$580
Washington DC
London Heathrow
Outbound
08/04/25
1 Stopover (JFK)
B60254, VS4000
21h 20min
Return
08/22/25
1 Stopover (JFK)
VS0045, B60955
15h 34min
JetBlue Airways, Virgin Atlantic Airways ?
$585
Washington DC
London Heathrow
Outbound
10/18/25
1 Stopover (ORD)
UA2148, UA0929
31h 20min
Return
11/17/25
1 Stopover (YUL)
UA8297, UA8372
29h 49min
United Airlines ?
$621
Washington DC
London Heathrow
Outbound
10/10/25
1 Stopover (YUL)
AC8824, AC0864
12h 00min
Return
11/04/25
2 Stopovers (BRU, YUL)
AC6330, AC0833, AC8823
13h 29min
Air Canada ?
$641
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
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
40 %
1 stopover New York - Newark Liberty International Airport, NJ
09h 40min, from $546
30 %
1 stopover Toronto - Lester B. Pearson International Airport
32h 20min, from $637
20 %

Important flight information

Flight information: Washington DC - London Heathrow

Roundtrip from $548.61
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
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