Cheapest one-way flights from Boston to Istanbul in December from 322€

AirHint found the following cheapest one-way flights from Boston (BOS) to Istanbul (IST) in December 2025 (see full year).

One-Way flights

31 Dec Icelandair
28 Dec SWISS
31 Dec Turkish Airlines direct
27 Dec Lufthansa
26 Dec Lufthansa
24 Dec KLM
25 Dec Frontier Airlines
23 Dec Frontier Airlines
20 Dec SWISS
23 Dec Turkish Airlines direct

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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