Cheapest return flights from Santander to Istanbul in December from $205

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

Return flights

11 Dec - 17 Dec Vueling Airlines
18 Dec - 24 Dec Vueling Airlines
18 Dec - 23 Dec Vueling Airlines
31 Dec - 09 Jan Vueling Airlines
09 Dec - 14 Dec Ryanair
19 Dec - 24 Dec Iberia
02 Dec - 07 Dec Ryanair
22 Dec - 26 Dec Vueling Airlines
20 Dec - 27 Dec Iberia
28 Dec - 07 Jan Iberia
28 Dec - 04 Jan Iberia

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

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