Cheapest return flights from Boston to Istanbul in October from 415€

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

Return flights

29 Oct - 03 Nov Icelandair
01 Oct - 15 Oct Aer Lingus
07 Oct - 12 Oct Iberia
26 Oct - 02 Nov Air France
31 Oct - 14 Nov British Airways
24 Oct - 01 Nov KLM
08 Oct - 12 Oct Icelandair
06 Oct - 31 Oct Air France
12 Oct - 17 Oct Aer Lingus
04 Oct - 11 Oct Icelandair
04 Oct - 18 Oct KLM
11 Oct - 18 Oct KLM
11 Oct - 13 Oct KLM
31 Oct - 14 Nov Turkish Airlines direct
11 Oct - 12 Oct British Airways
24 Oct - 01 Nov Turkish Airlines direct

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

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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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