Cheapest return flights from Portland to Lisbon in September from $867

Best time to book flights for Portland (PDX) to Lisbon (LIS) flights at AirHint

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

Return flights

20 Sep - 04 Oct Spirit Airlines
04 Sep - 11 Sep Spirit Airlines
10 Sep - 24 Sep WestJet
04 Sep - 18 Sep Spirit Airlines
21 Sep - 30 Sep Lufthansa
05 Sep - 12 Sep Spirit Airlines
11 Sep - 27 Sep WestJet
05 Sep - 26 Sep Spirit Airlines
02 Sep - 19 Sep Lufthansa
29 Sep - 01 Oct British Airways
30 Sep - 01 Oct British Airways
03 Sep - 09 Sep Air Canada

Also check the deals for one-way flights from Portland to Lisbon 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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