Cheapest return flights from Portland to London in September from $690

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

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

Return flights

17 Sep - 01 Oct Spirit Airlines
16 Sep - 20 Sep Icelandair
17 Sep - 02 Oct Spirit Airlines
09 Sep - 25 Sep Icelandair
18 Sep - 02 Oct jetBlue
11 Sep - 19 Sep Air Canada
20 Sep - 08 Oct Air Canada
09 Sep - 25 Sep British Airways direct
24 Sep - 03 Oct Spirit Airlines
15 Sep - 26 Sep Air Canada
13 Sep - 31 Oct Lufthansa
20 Sep - 07 Oct Virgin Atlantic
11 Sep - 15 Sep Lufthansa
11 Sep - 28 Sep Air Canada
13 Sep - 26 Sep Air Canada
13 Sep - 16 Sep Virgin Atlantic
07 Sep - 28 Sep Delta
17 Sep - 02 Oct Iberia direct
17 Sep - 01 Oct Iberia direct
20 Sep - 08 Oct British Airways direct

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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