Cheapest return flights from San Francisco to Istanbul in December from 633€

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

Return flights

31 Dec - 14 Jan KLM
31 Dec - 19 Jan Air France
06 Dec - 27 Dec Air France
31 Dec - 14 Jan Turkish Airlines direct
25 Dec - 08 Jan KLM
29 Dec - 31 Jan Delta
02 Dec - 31 Dec FrenchBee
17 Dec - 31 Dec KLM
22 Dec - 05 Jan British Airways
22 Dec - 30 Dec British Airways
31 Dec - 19 Jan Turkish Airlines direct
25 Dec - 08 Jan Turkish Airlines direct
24 Dec - 31 Dec Turkish Airlines direct
22 Dec - 30 Dec Turkish Airlines direct
22 Dec - 05 Jan Turkish Airlines direct

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

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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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