AirHint found the following cheapest return flights from London (STN) to Cancun (CUN) in September 2026 (see full year).

Return flights

22 Sep - 29 Sep	Ryanair
21 Sep - 28 Sep	Ryanair
16 Sep - 24 Sep	Ryanair
30 Sep - 05 Oct	Ryanair
10 Sep - 25 Sep	Ryanair
10 Sep - 18 Sep	Ryanair
19 Sep - 25 Sep	Ryanair
27 Sep - 12 Oct	Ryanair
24 Sep - 04 Oct	Ryanair
13 Sep - 24 Sep	Ryanair
02 Sep - 10 Sep	Ryanair
02 Sep - 11 Sep	Ryanair
06 Sep - 10 Sep	Ryanair
19 Sep - 03 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
21 Sep - 04 Oct	Ryanair
29 Sep - 04 Oct	Ryanair
24 Sep - 22 Oct	Turkish Airlines

Also check the deals for one-way flights from London 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 London to Cancun in September from $907

Return flights