Cheapest return flights from San Francisco to Istanbul in December from 520€

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

Return flights

04 Dec - 11 Dec KLM
06 Dec - 22 Jan KLM
06 Dec - 21 Jan KLM
28 Dec - 23 Jan KLM
31 Dec - 23 Jan KLM
03 Dec - 11 Dec KLM
03 Dec - 10 Dec KLM
07 Dec - 14 Dec KLM
06 Dec - 14 Dec Air France
31 Dec - 24 Jan KLM
28 Dec - 24 Jan Air France
08 Dec - 14 Dec KLM
05 Dec - 14 Dec KLM
28 Dec - 22 Jan KLM
28 Dec - 18 Jan KLM
03 Dec - 17 Dec KLM
02 Dec - 05 Dec KLM
02 Dec - 09 Dec KLM
01 Dec - 23 Jan KLM
31 Dec - 23 Jan Turkish Airlines direct

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

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