Book cheap flights fast with idealo

Save time & money: find cheap flights fast

Easy to use: filter & sort to find the best flight

Free to use: compare offers & book flights

Our cheapest offers for flights from Seattle Tacoma to United Kingdom

Here you can compare cheap flights from Seattle Tacoma (SEA) 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 Seattle-Tacoma (SEA) to London Heathrow (LHR)

	Outbound	Return	Airlines	Baggage	Price
Best option Seattle-Tacoma London Heathrow	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair		$621
Seattle-Tacoma London Heathrow	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair	?	$624
Seattle-Tacoma London Heathrow	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair		$625

Flights from Seattle-Tacoma (SEA) to London (LON)

	Outbound	Return	Airlines	Baggage	Price
Best option Seattle-Tacoma London	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair		$621
Seattle-Tacoma London	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair	?	$624
Seattle-Tacoma London	Outbound 04/26/25 1 Stopover (KEF) FI0682, FI0454 17h 20min	Return 05/23/25 1 Stopover (KEF) FI0451, FI0683 15h 35min	Icelandair		$625

Flights from Seattle Tacoma to United Kingdom

Book cheap flights fast with idealo

Our cheapest offers for flights from Seattle Tacoma to United Kingdom

Seattle-Tacoma International Airport, WA

United Kingdom

Popular flights to United Kingdom

Popular flights from Seattle-Tacoma