AirHint found the following cheapest return flights from Xi'an (XIY) to Istanbul (IST) in December 2025 (see full year).
Return flights
| 02 Dec - 06 Dec | China Eastern | ||
| 20 Dec - 28 Dec | China Southern | ||
| 20 Dec - 03 Jan | China Southern |
Also check the deals for one-way flights from Xi'an to Istanbul in December.
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