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

Return flights

08 Jul - 21 Aug	Hawaiian Airlines
11 Jul - 21 Aug	Hawaiian Airlines
08 Jul - 20 Aug	Hawaiian Airlines
08 Jul - 23 Aug	Frontier Airlines
15 Jul - 22 Jul	KLM
03 Jul - 22 Aug	FrenchBee
29 Jul - 07 Aug	Condor
10 Jul - 11 Aug	Frontier Airlines
22 Jul - 07 Aug	KLM
14 Jul - 25 Jul	Air France
21 Jul - 26 Jul	FrenchBee
10 Jul - 30 Jul	Frontier Airlines
21 Jul - 27 Jul	KLM
07 Jul - 17 Jul	FrenchBee
10 Jul - 31 Jul	Frontier Airlines
09 Jul - 27 Jul	Frontier Airlines
24 Jul - 07 Aug	KLM
16 Jul - 01 Aug	Frontier Airlines
10 Jul - 19 Jul	Frontier Airlines
14 Jul - 18 Jul	Hawaiian Airlines

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

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 July from 738€

Return flights