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

Return flights

26 Sep - 07 Oct	Aeromexico
11 Sep - 21 Sep	Aeromexico
09 Sep - 22 Sep	Air Europa
02 Sep - 30 Sep	TUI.nl
10 Sep - 20 Sep	Air Europa
11 Sep - 20 Sep	Air Europa
02 Sep - 02 Oct	jetBlue
02 Sep - 01 Oct	jetBlue
01 Sep - 30 Sep	Iberojet
10 Sep - 22 Sep	TUI fly Belgium
08 Sep - 18 Sep	Iberojet
01 Sep - 01 Oct	Turkish Airlines

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

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 Cancun to Istanbul in September from 735€

Return flights