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

Return flights

17 Sep - 23 Sep	Vueling Airlines
10 Sep - 17 Sep	Vueling Airlines
30 Sep - 02 Oct	Vueling Airlines
25 Sep - 30 Sep	Vueling Airlines
27 Sep - 01 Oct	Vueling Airlines
09 Sep - 20 Sep	Vueling Airlines
10 Sep - 14 Sep	Vueling Airlines
23 Sep - 28 Sep	Air Europa
23 Sep - 27 Sep	Air Europa
22 Sep - 28 Sep	Vueling Airlines
17 Sep - 21 Sep	Vueling Airlines
13 Sep - 20 Sep	Vueling Airlines
28 Sep - 05 Oct	easyJet

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 106€

Return flights