Cheapest return flights from Boston to Istanbul in April from 416€

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

Return flights

13 Apr - 29 Apr SWISS
22 Apr - 13 May Lufthansa
13 Apr - 21 Apr Delta
08 Apr - 15 Apr Lufthansa
14 Apr - 22 Apr Lufthansa
14 Apr - 23 Apr Lufthansa
14 Apr - 20 Apr Icelandair
29 Apr - 13 May Lufthansa
14 Apr - 22 Apr Turkish Airlines direct
13 Apr - 21 Apr Turkish Airlines direct
19 Apr - 03 May Icelandair
19 Apr - 27 Apr Lufthansa
22 Apr - 13 May Turkish Airlines direct
11 Apr - 23 Apr Scandinavian Airlines
29 Apr - 13 May Turkish Airlines direct
18 Apr - 02 May Aer Lingus
16 Apr - 12 May Delta

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

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