Cheapest return flights from Seattle to London in June from 580€

AirHint found the following cheapest return flights from Seattle (SEA) to London (LHR) in June 2026 (see full year).

Return flights

01 Jun - 15 Jun Icelandair
12 Jun - 23 Jun Scandinavian Airlines
10 Jun - 17 Jun Icelandair
13 Jun - 21 Jun Scandinavian Airlines
23 Jun - 07 Jul Scandinavian Airlines
08 Jun - 15 Jun Icelandair
21 Jun - 04 Jul Scandinavian Airlines
18 Jun - 27 Jun Icelandair
10 Jun - 17 Jun Air France direct
18 Jun - 25 Jun Icelandair
13 Jun - 20 Jun Icelandair
01 Jun - 15 Jun Air France direct
24 Jun - 08 Jul Delta
24 Jun - 09 Jul Lufthansa
25 Jun - 23 Jul Aer Lingus
17 Jun - 06 Jul Air Canada
21 Jun - 13 Jul Virgin Atlantic direct
24 Jun - 09 Jul Virgin Atlantic direct
21 Jun - 04 Jul Air France direct
24 Jun - 08 Jul Virgin Atlantic direct

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

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