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

Return flights

29 Sep - 10 Oct	Vueling Airlines
28 Sep - 30 Sep	Vueling Airlines
30 Sep - 02 Oct	Vueling Airlines
29 Sep - 03 Oct	Vueling Airlines
27 Sep - 30 Sep	Wizz Air Malta
26 Sep - 30 Sep	Vueling Airlines
26 Sep - 29 Sep	Vueling Airlines
26 Sep - 02 Oct	Vueling Airlines
27 Sep - 02 Oct	Vueling Airlines
27 Sep - 03 Oct	Vueling Airlines
17 Sep - 19 Sep	Volotea
18 Sep - 22 Sep	Vueling Airlines
22 Sep - 26 Sep	Vueling Airlines
21 Sep - 28 Sep	easyJet
21 Sep - 22 Sep	easyJet
17 Sep - 21 Sep	Wizz Air Malta

Also check the deals for one-way flights from Bilbao to Krakow in September.

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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Cheapest return flights from Bilbao to Krakow in September from 164€

Return flights