Cheapest return flights from Seattle to London in July from 648€

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

Return flights

29 Jul - 21 Aug Aer Lingus
29 Jul - 21 Aug Air France direct
30 Jul - 06 Aug Air Canada
30 Jul - 08 Aug Icelandair
30 Jul - 06 Aug Virgin Atlantic direct
30 Jul - 04 Aug Scandinavian Airlines
31 Jul - 03 Aug Icelandair
30 Jul - 02 Aug Scandinavian Airlines
27 Jul - 02 Aug Scandinavian Airlines
30 Jul - 04 Aug British Airways direct

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

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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