Our cheapest offers for flights from London to Washington DC

Here you can compare cheap flights from London (LON) to Washington DC (WAS) 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 Washington DC. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
Best option London Washington-DC	Outbound 19/06/26 direct KL4824 08h 00min	Return 05/07/26 direct KL4825 07h 25min	KLM		£511
London Washington-DC	Outbound 19/06/26 1 Stopover (CMN) AT0803, AT0218 31h 10min	Return 05/07/26 1 Stopover (CMN) AT0219, AT0802 13h 50min	Royal Air Maroc		£523
London Washington-DC Please note: transfer for connecting flight	Outbound 31/03/26 1 Stopover (DUB) FR0117, EI0119 11h 25min	Return 21/04/26 1 Stopover (KEF) FI0644, FI0472 13h 10min	Ryanair, Aer Lingus Irish Airlines		£715
London Washington-DC	Outbound 19/06/26 1 Stopover (CMN) AT0803, AT0218 31h 10min	Return 05/07/26 1 Stopover (CMN) AT0219, AT0802 13h 50min	Royal Air Maroc		£524
London Washington-DC	Outbound 19/06/26 1 Stopover (CMN) AT0803, AT0218 31h 10min	Return 05/07/26 1 Stopover (CMN) AT0219, AT0802 13h 50min	Royal Air Maroc		£527
London Washington-DC	Outbound 19/06/26 1 Stopover (CMN) AT0803, AT0218 31h 10min	Return 05/07/26 1 Stopover (CMN) AT0219, AT0802 13h 50min	Royal Air Maroc		£528
London Washington-DC	Outbound 19/06/26 1 Stopover (CMN) AT0803, AT0218 31h 00min	Return 05/07/26 1 Stopover (CMN) AT0219, AT0802 14h 00min	Royal Air Maroc		£530
London Washington-DC	Outbound 19/06/26 direct VS0021 08h 00min	Return 05/07/26 direct VS0022 07h 25min	Virgin Atlantic Airways	?	£534
London Washington-DC	Outbound 31/03/26 1 Stopover (KEF) FI0451, FI0645 11h 15min	Return 21/04/26 1 Stopover (KEF) FI0644, FI0450 10h 25min	Icelandair		£536
London Washington-DC	Outbound 31/03/26 direct VS0021 08h 00min	Return 21/04/26 direct VS0022 07h 25min	Virgin Atlantic Airways	?	£569

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

Important flight information

Flight information: London - Washington-DC

Outbound and return from	£ 510,97
Flight duration	min. 08:20 / max. 08:45
Return flight duration	min. 07:00/ max. 08:22
Distance	5903 km
Flights per week	52
Departure airport	Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Arrival airport	Airport Washington-DC (WAS)
Destination country	Flights to United States

Alternative routes to United States

Flight London - New York from £ 283
Flight London - Los Angeles from £ 379
Flight London - San Francisco from £ 376
Flight London - Miami from £ 294
Flight London - Orlando from £ 383
Flight London - Chicago from £ 366
Flight London - Las Vegas from £ 419
Flight London - Boston from £ 307
Flight London - Honolulu from £ 797
Flight London - Seattle-Tacoma from £ 358

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Flight London - Denver from £ 474
Flight London - Philadelphia from £ 512
Flight London - Dallas from £ 552
Flight London - Perth from £ 537
Flight London - Kinshasa from £ 504
Flight London - Shanghai Pudong from £ 470