Cheapest return flights from San Francisco to Istanbul in October from $825

Best time to book flights for San Francisco (SFO) to Istanbul (IST) flights at AirHint

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

Return flights

01 Oct - 08 Oct Brussels Airlines
08 Oct - 10 Oct Frontier Airlines
13 Oct - 20 Oct TAP
08 Oct - 29 Oct Frontier Airlines
23 Oct - 29 Oct Iberia
30 Oct - 13 Nov Air Canada
18 Oct - 01 Nov Delta
03 Oct - 17 Oct Scandinavian Airlines
01 Oct - 08 Oct Turkish Airlines direct
23 Oct - 29 Oct Turkish Airlines direct
30 Oct - 13 Nov Turkish Airlines direct
03 Oct - 17 Oct Turkish Airlines direct
08 Oct - 29 Oct Turkish Airlines direct
18 Oct - 01 Nov Turkish Airlines direct

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

Skyscanner

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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