AirHint found the following cheapest one-way flights from Washington (DCA) to Istanbul (IST) in December 2025 (see full year).
One-Way flights
| 03 Dec | jetBlue | ||
| 09 Dec | jetBlue | ||
| 06 Dec | jetBlue | ||
| 05 Dec | jetBlue | ||
| 11 Dec | jetBlue | ||
| 28 Dec | jetBlue | ||
| 24 Dec | Air Canada | ||
| 18 Dec | Air Canada |
Also check the deals for return flights from Washington to Istanbul in December.
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