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

Return flights

24 Sep - 30 Sep	Lufthansa
24 Sep - 01 Oct	Lufthansa
25 Sep - 24 Oct	Lufthansa
24 Sep - 03 Oct	Lufthansa
25 Sep - 11 Oct	Lufthansa
24 Sep - 10 Oct	Lufthansa
03 Sep - 25 Sep	Lufthansa
09 Sep - 20 Sep	Lufthansa
16 Sep - 25 Sep	Lufthansa
16 Sep - 27 Sep	Lufthansa
03 Sep - 20 Sep	Lufthansa
19 Sep - 27 Sep	Lufthansa
22 Sep - 02 Oct	Lufthansa
23 Sep - 28 Oct	Lufthansa
06 Sep - 13 Sep	Air Canada
06 Sep - 14 Sep	Air Canada
13 Sep - 20 Sep	Air Canada
28 Sep - 20 Oct	Air Canada
02 Sep - 02 Oct	Air Canada
27 Sep - 07 Oct	Lufthansa

Also check the deals for one-way flights from Frankfurt to Cancun 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 Frankfurt to Cancun in September from $593

Return flights