AirHint found the following cheapest return flights from San Francisco (SFO) to Istanbul (IST) in January 2026 (see full year).

Return flights

21 Jan - 04 Feb	Air France
24 Jan - 07 Feb	Air France
21 Jan - 04 Feb	Turkish Airlines	direct
07 Jan - 26 Jan	Air France
01 Jan - 19 Jan	Air France
02 Jan - 16 Jan	KLM
24 Jan - 07 Feb	Turkish Airlines	direct
07 Jan - 26 Jan	Turkish Airlines	direct
02 Jan - 16 Jan	Turkish Airlines	direct
01 Jan - 06 Jan	KLM
02 Jan - 11 Jan	Delta
01 Jan - 06 Jan	Turkish Airlines	direct
01 Jan - 19 Jan	Turkish Airlines	direct

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

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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Cheapest return flights from San Francisco to Istanbul in January from 640€

Return flights