AirHint found the following cheapest one-way flights from Boston (BOS) to Istanbul (IST) in December 2025 (see full year).
One-Way flights
| 01 Dec | Air France | ||
| 09 Dec | KLM | ||
| 08 Dec | SWISS | ||
| 10 Dec | Icelandair | ||
| 03 Dec | Icelandair | ||
| 11 Dec | TAP | ||
| 12 Dec | Spirit Airlines | ||
| 31 Dec | Icelandair | ||
| 24 Dec | Icelandair | ||
| 25 Dec | LEVEL |
Also check the deals for return flights from Boston 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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