Cheapest return flights from Boston to Istanbul in December from 348€

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

Return flights

03 Dec - 12 Jan Icelandair
03 Dec - 17 Dec KLM
30 Dec - 13 Jan Air France
15 Dec - 23 Dec KLM
03 Dec - 17 Dec Turkish Airlines direct
24 Dec - 31 Dec KLM
22 Dec - 21 Jan KLM
21 Dec - 02 Jan KLM
20 Dec - 01 Jan KLM
30 Dec - 13 Jan Turkish Airlines direct
03 Dec - 12 Jan Turkish Airlines direct
15 Dec - 23 Dec Turkish Airlines direct
22 Dec - 21 Jan Turkish Airlines direct

Also check the deals for one-way flights from Boston to Istanbul in December.

Skyscanner

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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