Cheapest return flights from Boston to Istanbul in January from 370€

AirHint found the following cheapest return flights from Boston (BOS) to Istanbul (IST) in January 2026 (see full year).

Return flights

28 Jan - 04 Feb Icelandair
24 Jan - 04 Feb Icelandair
21 Jan - 27 Jan Iberia
20 Jan - 27 Jan Delta
20 Jan - 02 Feb Delta
28 Jan - 10 Feb KLM
28 Jan - 06 Feb KLM
22 Jan - 04 Feb Lufthansa
22 Jan - 05 Feb KLM
29 Jan - 11 Feb KLM
23 Jan - 27 Jan Iberia
21 Jan - 25 Jan Delta
24 Jan - 01 Feb Icelandair
29 Jan - 08 Feb KLM
22 Jan - 31 Jan KLM
17 Jan - 24 Jan Air France
24 Jan - 31 Jan KLM
15 Jan - 22 Jan Lufthansa
16 Jan - 27 Jan TAP
19 Jan - 23 Jan TAP

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

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