Cheapest return flights from Seattle to London in June from 750€

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

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

Return flights

02 Jun - 22 Jun Scandinavian Airlines
11 Jun - 22 Jun Scandinavian Airlines
01 Jun - 21 Jun Scandinavian Airlines
15 Jun - 21 Jun Scandinavian Airlines
06 Jun - 17 Jun Scandinavian Airlines
06 Jun - 16 Jun Scandinavian Airlines
13 Jun - 22 Jun Scandinavian Airlines
06 Jun - 15 Jun Scandinavian Airlines
07 Jun - 21 Jun Scandinavian Airlines
22 Jun - 29 Jun Scandinavian Airlines
25 Jun - 01 Jul Scandinavian Airlines
29 Jun - 17 Jul Aer Lingus
23 Jun - 31 Jul Finnair
02 Jun - 15 Jul Scandinavian Airlines
29 Jun - 17 Jul British Airways direct
02 Jun - 15 Jul British Airways direct
21 Jun - 10 Jul Air France direct
23 Jun - 31 Jul Air France direct
27 Jun - 04 Jul United
25 Jun - 01 Jul Air France direct

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

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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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