Cheapest return flights from Seattle to London in June from 883€

Best time to book flights for Seattle (SEA) to London (LGW) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to London (LGW) in June 2025 (see full year).

Return flights

05 Jun - 12 Jun Icelandair
10 Jun - 18 Jun Icelandair
19 Jun - 26 Jun Icelandair
28 Jun - 08 Jul Alaska Airlines
15 Jun - 22 Jun Icelandair
11 Jun - 22 Jun Icelandair
14 Jun - 29 Jun Icelandair
26 Jun - 29 Jun Alaska Airlines
11 Jun - 30 Jun Icelandair

Also check the deals for one-way flights from Seattle to London in June.

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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