AirHint found the following cheapest one-way flights from Seattle (SEA) to London (STN) in June 2026 (see full year).
One-Way flights
| 02 Jun | WestJet | ||
| 03 Jun | WestJet | ||
| 15 Jun | WestJet | ||
| 18 Jun | WestJet | ||
| 20 Jun | WestJet | ||
| 28 Jun | Aer Lingus | ||
| 25 Jun | Icelandair | ||
| 04 Jun | Turkish Airlines | ||
| 19 Jun | Turkish Airlines | ||
| 05 Jun | Turkish Airlines |
Also check the deals for return 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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