Cheapest return flights from San Francisco to Istanbul in April from $597

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

Return flights

21 Apr - 16 May Scandinavian Airlines
23 Apr - 07 May Air France
27 Apr - 11 May Air France
11 Apr - 21 Apr Air France
17 Apr - 25 Apr Scandinavian Airlines
17 Apr - 03 May Scandinavian Airlines
17 Apr - 09 May Scandinavian Airlines
26 Apr - 10 May Scandinavian Airlines
01 Apr - 12 Apr Scandinavian Airlines
05 Apr - 18 Apr Lufthansa
11 Apr - 21 Apr Turkish Airlines direct
01 Apr - 12 Apr Turkish Airlines direct
23 Apr - 07 May Turkish Airlines direct
17 Apr - 25 Apr Turkish Airlines direct
17 Apr - 03 May Turkish Airlines direct
27 Apr - 11 May Turkish Airlines direct
21 Apr - 16 May Turkish Airlines direct

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

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