Cheapest return flights from Portland to London in September from $885

Best time to book flights for Portland (PDX) to London (STN) flights at AirHint

AirHint found the following cheapest return flights from Portland (PDX) to London (STN) in September 2024 (see full year).

Return flights

22 Sep - 08 Oct Alaska Airlines
21 Sep - 28 Sep Spirit Airlines
27 Sep - 30 Sep Frontier Airlines
30 Sep - 08 Oct Alaska Airlines
20 Sep - 27 Sep Alaska Airlines
18 Sep - 24 Sep jetBlue
17 Sep - 02 Oct Alaska Airlines
19 Sep - 27 Sep Alaska Airlines
23 Sep - 29 Sep Alaska Airlines
19 Sep - 12 Oct Alaska Airlines

Also check the deals for one-way flights from Portland to London in September.

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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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