Cheapest return flights from Bilbao to Istanbul in December from 122€

AirHint found the following cheapest return flights from Bilbao (BIO) to Istanbul (IST) in December 2025 (see full year).

Return flights

08 Dec - 10 Dec Vueling Airlines
09 Dec - 16 Dec Vueling Airlines
09 Dec - 12 Dec Vueling Airlines
12 Dec - 15 Dec Pegasus Airlines direct
01 Dec - 03 Dec Pegasus Airlines direct
01 Dec - 05 Dec Pegasus Airlines direct
08 Dec - 10 Dec Pegasus Airlines direct
02 Dec - 05 Dec Vueling Airlines
14 Dec - 17 Dec Pegasus Airlines direct
09 Dec - 13 Dec Vueling Airlines
31 Dec - 07 Jan Vueling Airlines
31 Dec - 09 Jan Pegasus Airlines direct
31 Dec - 07 Jan Pegasus Airlines direct
01 Dec - 28 Jan Pegasus Airlines
31 Dec - 06 Jan Vueling Airlines
25 Dec - 09 Jan Vueling Airlines
19 Dec - 11 Jan Pegasus Airlines
18 Dec - 10 Jan Vueling Airlines
30 Dec - 06 Jan Volotea
24 Dec - 06 Jan Vueling Airlines

Also check the deals for one-way flights from Bilbao to Istanbul in December.

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