Cheapest return flights from San Francisco to Istanbul in May from $617

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

Return flights

13 May - 23 May Scandinavian Airlines
11 May - 18 May Scandinavian Airlines
11 May - 25 May Scandinavian Airlines
21 May - 26 May Scandinavian Airlines
16 May - 06 Jun Air France
14 May - 28 May Air France
22 May - 13 Jun KLM
15 May - 06 Jun KLM
21 May - 26 May Turkish Airlines direct
14 May - 28 May Turkish Airlines direct
11 May - 25 May Turkish Airlines direct
11 May - 18 May Turkish Airlines direct
22 May - 13 Jun Turkish Airlines direct
15 May - 06 Jun Turkish Airlines direct
16 May - 06 Jun Turkish Airlines direct

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

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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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