Cheapest return flights from Basel to Porto in September from $66

Best time to book flights for Basel (BSL) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Basel (BSL) to Porto (OPO) in September 2025 (see full year).

Return flights

15 Sep - 19 Sep easyJet direct
15 Sep - 28 Sep easyJet direct
21 Sep - 30 Sep easyJet direct
17 Sep - 27 Sep easyJet direct
03 Sep - 10 Sep easyJet direct
25 Sep - 28 Sep easyJet direct
05 Sep - 12 Sep easyJet direct
18 Sep - 21 Sep easyJet direct
02 Sep - 09 Sep easyJet direct
01 Sep - 06 Sep easyJet direct
27 Sep - 04 Oct easyJet direct

Also check the deals for one-way flights from Basel to Porto 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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