AirHint found the following cheapest one-way flights from Boston (BOS) to Istanbul (IST) in April 2026 (see full year).
One-Way flights
| 12 Apr | Icelandair | ||
| 02 Apr | Frontier Airlines | ||
| 27 Apr | Iberia | ||
| 26 Apr | Lufthansa | ||
| 27 Apr | Turkish Airlines | direct | |
| 02 Apr | Turkish Airlines | direct | |
| 26 Apr | Turkish Airlines | direct |
Also check the deals for return flights from Boston to Istanbul in April.
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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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