Cheapest return flights from San Diego to Istanbul in September from $769

AirHint found the following cheapest return flights from San Diego (SAN) to Istanbul (IST) in September 2025 (see full year).

Return flights

29 Sep - 06 Oct Frontier Airlines
18 Sep - 22 Sep KLM
24 Sep - 18 Oct Spirit Airlines
22 Sep - 18 Oct Frontier Airlines
07 Sep - 30 Sep Frontier Airlines
06 Sep - 13 Sep Spirit Airlines
05 Sep - 07 Oct jetBlue
20 Sep - 27 Sep Delta

Also check the deals for one-way flights from San Diego to Istanbul in September.

Skyscanner

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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