AirHint found the following cheapest return flights from Portland (PDX) to London (STN) in June 2026 (see full year).
Return flights
| 01 Jun - 14 Jun | WestJet | ||
| 17 Jun - 29 Jun | WestJet | ||
| 14 Jun - 04 Jul | WestJet | ||
| 09 Jun - 04 Jul | Alaska Airlines | ||
| 23 Jun - 18 Jul | Alaska Airlines | ||
| 08 Jun - 23 Jun | Alaska Airlines |
Also check the deals for one-way flights from Portland to London in June.
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