Cheapest return flights from Basel to Barcelona in September from $56

Best time to book flights for Basel (BSL) to Barcelona (BCN) flights at AirHint

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

Return flights

17 Sep - 23 Sep easyJet direct
09 Sep - 10 Sep easyJet direct
16 Sep - 18 Sep easyJet direct
20 Sep - 30 Sep easyJet direct
17 Sep - 30 Sep Vueling Airlines direct
17 Sep - 08 Oct Vueling Airlines direct
18 Sep - 21 Sep easyJet direct
03 Sep - 10 Sep easyJet direct
09 Sep - 30 Sep Vueling Airlines direct
09 Sep - 23 Sep Vueling Airlines direct
16 Sep - 30 Sep Vueling Airlines direct
24 Sep - 08 Oct Vueling Airlines direct
18 Sep - 08 Oct Vueling Airlines direct
27 Sep - 04 Oct easyJet direct
24 Sep - 09 Oct Vueling Airlines direct
30 Sep - 08 Oct Vueling Airlines direct
30 Sep - 17 Oct Vueling Airlines direct
18 Sep - 09 Oct Vueling Airlines direct
17 Sep - 03 Oct Vueling Airlines direct
16 Sep - 03 Oct Vueling Airlines direct

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