Cheapest return flights from Boston to Istanbul in October from $436

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
18 Oct - 31 Oct Icelandair
01 Oct - 07 Oct Icelandair
06 Oct - 13 Oct Icelandair
23 Oct - 06 Nov Air Canada
26 Oct - 09 Nov TAP
10 Oct - 19 Oct TAP
26 Oct - 02 Nov Icelandair
11 Oct - 19 Oct TAP
01 Oct - 10 Oct Icelandair
09 Oct - 13 Oct TAP
06 Oct - 31 Oct British Airways
23 Oct - 06 Nov Turkish Airlines direct
09 Oct - 13 Oct Turkish Airlines direct
18 Oct - 31 Oct Turkish Airlines direct
29 Oct - 03 Nov Turkish Airlines direct
26 Oct - 02 Nov Turkish Airlines direct
26 Oct - 09 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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