The Houses of Parliament and Big Ben in London, with a red double-decker bus crossing the Lambeth Bridge.

Icelandair flights to London from Seattle

S$331 Cheap Icelandair flights Seattle (SEA) to London (LON)

Prices were available within the past 7 days and start at S$331 for one-way flights and S$836 for return, for the period specified. Prices and availability are subject to change.

Find the cheapest month to fly from Seattle (SEA) to London (LON)

February is typically the cheapest month to fly

From S$814 - S$1,104 per traveller.

Travel information

Origin airport
Seattle-Tacoma International Airport
Destination airport
London
Distance
7,742 km away
Airline name
Icelandair
Airline code
FI
Return price
S$836
*Available to Expedia members.