Cheapest return flights from San Francisco to Istanbul in April from $754

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 April 2025 (see full year).

Return flights

28 Apr - 06 May Hawaiian Airlines
30 Apr - 06 May Hawaiian Airlines
23 Apr - 08 May Hawaiian Airlines
19 Apr - 14 May Frontier Airlines
30 Apr - 07 May Hawaiian Airlines
30 Apr - 18 May Hawaiian Airlines
26 Apr - 17 May Frontier Airlines
24 Apr - 08 May Hawaiian Airlines
22 Apr - 02 May KLM
19 Apr - 03 May Frontier Airlines
23 Apr - 30 Apr Alaska Airlines
21 Apr - 30 Apr Scandinavian Airlines
10 Apr - 15 Apr Frontier Airlines
15 Apr - 22 Apr Air Canada
08 Apr - 15 Apr Hawaiian Airlines
12 Apr - 18 Apr Brussels Airlines
09 Apr - 16 Apr Lufthansa
12 Apr - 26 Apr Frontier Airlines
07 Apr - 17 Apr FrenchBee
08 Apr - 14 Apr Alaska Airlines

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

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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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