Cheapest return flights from San Francisco to Istanbul in May from $685

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

Return flights

08 May - 17 May Scandinavian Airlines
12 May - 24 May Scandinavian Airlines
12 May - 26 May Scandinavian Airlines
06 May - 11 May KLM
19 May - 27 May KLM
16 May - 30 May Air France
22 May - 31 May Air France
08 May - 20 Jun Air France
15 May - 29 May jetBlue
15 May - 30 May jetBlue
19 May - 27 May Turkish Airlines direct
25 May - 01 Jun Scandinavian Airlines
08 May - 20 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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