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

Return flights

25 Sep - 09 Oct	Lufthansa
18 Sep - 25 Sep	Air Canada
18 Sep - 21 Sep	Air Canada
22 Sep - 02 Oct	Air Canada
18 Sep - 09 Oct	Air Canada
24 Sep - 02 Oct	Air Canada
24 Sep - 03 Oct	Air Europa
17 Sep - 24 Sep	Air Canada
18 Sep - 24 Sep	Air Canada
17 Sep - 03 Oct	Air Europa
23 Sep - 30 Sep	Air Canada
17 Sep - 30 Sep	Air Europa
23 Sep - 04 Oct	Air Canada
23 Sep - 08 Oct	Air Canada
16 Sep - 08 Oct	Air Canada
23 Sep - 01 Oct	Air Canada
19 Sep - 26 Sep	Air Europa
16 Sep - 27 Sep	Lufthansa
17 Sep - 20 Sep	Lufthansa
20 Sep - 27 Sep	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 517€

Return flights