Cheapest return flights from San Francisco to Istanbul in October from $768

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

Return flights

29 Oct - 22 Nov SWISS
28 Oct - 13 Nov Flair Airlines
27 Oct - 22 Nov TAP
28 Oct - 22 Nov SWISS
26 Oct - 15 Nov Lufthansa
29 Oct - 24 Nov Qatar Airways
26 Oct - 29 Oct Qatar Airways
26 Oct - 02 Nov Qatar Airways
28 Oct - 13 Nov Turkish Airlines direct
28 Oct - 22 Nov Turkish Airlines direct
29 Oct - 22 Nov Turkish Airlines direct
26 Oct - 29 Oct Turkish Airlines direct

Also check the deals for one-way flights from San Francisco 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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