Cheapest return flights from Bilbao to Istanbul in December from 188€

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

Return flights

31 Dec - 07 Jan Pegasus Airlines
29 Dec - 01 Jan easyJet
31 Dec - 05 Jan Pegasus Airlines
28 Dec - 31 Dec Pegasus Airlines direct
31 Dec - 02 Jan Pegasus Airlines
31 Dec - 03 Jan Pegasus Airlines
31 Dec - 04 Jan Pegasus Airlines
29 Dec - 31 Dec easyJet
28 Dec - 02 Jan Pegasus Airlines
29 Dec - 04 Jan easyJet
26 Dec - 29 Dec Vueling Airlines
29 Dec - 05 Jan easyJet
29 Dec - 02 Jan easyJet
27 Dec - 29 Dec Vueling Airlines
26 Dec - 31 Dec Vueling Airlines
27 Dec - 30 Dec Air Europa
27 Dec - 31 Dec Air Europa
25 Dec - 31 Dec Vueling Airlines
25 Dec - 30 Dec Vueling Airlines
26 Dec - 29 Dec Pegasus Airlines direct

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

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