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Our cheapest offers for flights from Washington DC to United Kingdom

Here you can compare cheap flights from Washington DC (DCA) to United Kingdom 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 United Kingdom. Prices and availability may change at any time.

Flights from Washington DC (DCA) to London Heathrow (LHR)

	Outbound	Return	Airlines	Baggage	Price
Best option Washington DC London Heathrow	Outbound 04/02/25 1 Stopover (BOS) B62554, B61620 10h 10min	Return 04/09/25 1 Stopover (BOS) B61621, B61055 11h 16min	JetBlue Airways	?	$480
Washington DC London Heathrow	Outbound 03/01/25 1 Stopover (BOS) B61154, B61620 15h 26min	Return 03/09/25 1 Stopover (BOS) B61621, B61355 12h 05min	JetBlue Airways	?	$508
Washington DC London Heathrow	Outbound 12/31/24 1 Stopover (YUL) AC8820, AC0866 20h 10min	Return 01/10/25 1 Stopover (YUL) AC0865, AC8825 11h 00min	Air Canada	?	$566