Our cheapest offers for flights from Washington DC to United Kingdom

Here you can compare cheap flights from Washington DC (IAD) 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 (IAD) to London Heathrow (LHR)

	Outbound	Return	Airlines	Baggage	Price
Washington DC London Heathrow	Outbound 03/04/25 1 Stopover (KEF) FI0644, FI0454 18h 50min	Return 03/29/25 1 Stopover (KEF) FI0455, FI0645 26h 35min	Icelandair		$430
Best option Washington DC London Heathrow	Outbound 02/18/25 direct BA0216 07h 15min	Return 03/12/25 direct IB3632 08h 15min	British Airways	?	$565
Washington DC London Heathrow	Outbound 03/04/25 1 Stopover (KEF) FI0644, FI0454 18h 50min	Return 03/29/25 1 Stopover (KEF) FI0455, FI0645 26h 35min	Icelandair		$431

Flights from Washington DC (IAD) to Manchester (MAN)

	Outbound	Return	Airlines	Price
Washington DC Manchester Pay attention to transfer at connecting flight	Outbound 03/29/25 1 Stopover (DUB) EI0116, FR0558 09h 45min	Return 04/02/25 1 Stopover (DUB) FR0557, EI0119 13h 00min	Aer Lingus Irish Airlines, Ryanair	$597
Washington DC Manchester	Outbound 03/29/25 2 Stopovers (CPH, OSL) SK0926, SK0452, SK4609 18h 40min	Return 04/02/25 1 Stopover (CPH) SK0542, SK0925 29h 49min	SAS Scandinavian Airlines	$606
Washington DC Manchester	Outbound 03/29/25 2 Stopovers (CPH, OSL) SK0926, SK0452, SK4609 18h 40min	Return 04/02/25 1 Stopover (CPH) SK0542, SK0925 29h 49min	SAS Scandinavian Airlines	$610