Cheapest return flights from Boston to Istanbul in April from 418€

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

Return flights

08 Apr - 15 Apr Iberia
28 Apr - 07 May Delta
01 Apr - 09 Apr KLM
01 Apr - 07 Apr KLM
22 Apr - 13 May KLM
27 Apr - 11 May KLM
14 Apr - 28 Apr Lufthansa
01 Apr - 12 Apr KLM
24 Apr - 11 May KLM
13 Apr - 27 Apr KLM
14 Apr - 27 Apr Lufthansa
19 Apr - 27 Apr Lufthansa
19 Apr - 03 May Lufthansa
15 Apr - 04 May Icelandair
02 Apr - 12 Apr KLM
14 Apr - 26 Apr Air France
22 Apr - 13 May Turkish Airlines direct
28 Apr - 07 May Turkish Airlines direct
15 Apr - 04 May Turkish Airlines direct
27 Apr - 11 May Turkish Airlines direct

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

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