Cheapest one-way flights from Seattle to London in October from 205€

AirHint found the following cheapest one-way flights from Seattle (SEA) to London (LHR) in October 2025 (see full year).

One-Way flights

18 Oct Frontier Airlines
22 Oct Icelandair
01 Oct Icelandair
02 Oct Air Canada
07 Oct Hawaiian Airlines
29 Oct WestJet
08 Oct Hawaiian Airlines
09 Oct WestJet
01 Oct Virgin Atlantic direct
22 Oct Virgin Atlantic direct

Also check the deals for return flights from Seattle to London in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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