AirHint found the following cheapest return flights from Guadalajara (GDL) to Istanbul (IST) in December 2025 (see full year).
Return flights
| 27 Dec - 09 Jan | Viva | ||
| 23 Dec - 05 Jan | Viva | ||
| 13 Dec - 20 Dec | Volaris |
Also check the deals for one-way flights from Guadalajara to Istanbul in December.
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