AirHint found the following cheapest return flights from San Diego (SAN) to Istanbul (IST) in December 2025 (see full year).
Return flights
| 26 Dec - 10 Jan | Frontier Airlines | ||
| 24 Dec - 08 Jan | Frontier Airlines | ||
| 14 Dec - 21 Dec | Delta | ||
| 21 Dec - 28 Dec | Frontier Airlines | ||
| 19 Dec - 10 Jan | Frontier Airlines |
Also check the deals for one-way flights from San Diego 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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