AirHint found the following cheapest one-way flights from Boston (BOS) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 27 May | KLM | ||
| 31 May | Icelandair | ||
| 24 May | Icelandair | ||
| 22 May | Lufthansa | ||
| 25 May | Icelandair | ||
| 26 May | Icelandair | ||
| 30 May | Icelandair | ||
| 29 May | Lufthansa | ||
| 28 May | Azores Airlines | ||
| 21 May | jetBlue |
Also check the deals for return flights from Boston to Istanbul in May.
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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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