AirHint found the following cheapest return flights from Portland (PDX) to London (STN) in October 2026 (see full year).
Return flights
| 05 Oct - 14 Oct | Icelandair | ||
| 02 Oct - 14 Oct | Alaska Airlines | ||
| 31 Oct - 07 Nov | Icelandair | ||
| 02 Oct - 23 Oct | Alaska Airlines | ||
| 03 Oct - 14 Oct | Alaska Airlines |
Also check the deals for one-way flights from Portland to London in October.
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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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