Cheapest return flights from Bilbao to Basel in September from $71

Best time to book flights for Bilbao (BIO) to Basel (BSL) flights at AirHint

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

Return flights

05 Sep - 09 Sep easyJet direct
26 Sep - 30 Sep easyJet direct
12 Sep - 16 Sep easyJet direct
19 Sep - 26 Sep easyJet direct
26 Sep - 29 Sep easyJet
03 Sep - 16 Sep Vueling Airlines
16 Sep - 30 Sep Vueling Airlines
03 Sep - 04 Sep Vueling Airlines
26 Sep - 14 Oct Vueling Airlines
07 Sep - 16 Sep Vueling Airlines
03 Sep - 09 Sep Vueling Airlines
26 Sep - 07 Oct Vueling Airlines
26 Sep - 10 Oct Vueling Airlines
16 Sep - 03 Oct Vueling Airlines
26 Sep - 03 Oct Vueling Airlines

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