Cheapest return flights from Bilbao to Istanbul in December from $148

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

Return flights

12 Dec - 21 Dec Pegasus Airlines direct
17 Dec - 21 Dec Pegasus Airlines direct
12 Dec - 17 Dec Pegasus Airlines direct
12 Dec - 15 Dec Pegasus Airlines direct
15 Dec - 24 Dec Pegasus Airlines direct
14 Dec - 17 Dec Pegasus Airlines direct
17 Dec - 19 Dec Pegasus Airlines direct
15 Dec - 19 Dec Pegasus Airlines direct
17 Dec - 22 Dec Pegasus Airlines direct
10 Dec - 17 Dec Pegasus Airlines direct
25 Dec - 07 Jan Vueling Airlines
17 Dec - 05 Jan Pegasus Airlines
22 Dec - 07 Jan Vueling Airlines
31 Dec - 04 Jan Pegasus Airlines direct
24 Dec - 05 Jan Vueling Airlines
29 Dec - 09 Jan Vueling Airlines
31 Dec - 06 Jan Pegasus Airlines
31 Dec - 05 Jan Pegasus Airlines
28 Dec - 07 Jan Vueling Airlines
22 Dec - 07 Jan Pegasus Airlines direct

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

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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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