Cheapest return flights from Boston to Istanbul in May from $566

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

Return flights

06 May - 13 May SWISS
04 May - 18 May KLM
05 May - 19 May Austrian Airlines
15 May - 19 May Icelandair
29 May - 06 Jun KLM
28 May - 01 Jun KLM
19 May - 21 May Scandinavian Airlines
02 May - 16 May Icelandair
01 May - 16 May LEVEL
31 May - 14 Jun Air Canada
30 May - 06 Jun Aer Lingus

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

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