AirHint found the following cheapest return flights from London (STN) to Cancun (CUN) in August 2025 (see full year).

Return flights

26 Aug - 10 Sep	Jet2
26 Aug - 09 Sep	Jet2
27 Aug - 10 Sep	Ryanair
31 Aug - 16 Sep	Ryanair
26 Aug - 26 Sep	Jet2
31 Aug - 14 Sep	Ryanair
30 Aug - 09 Sep	Ryanair
26 Aug - 05 Sep	Ryanair
30 Aug - 05 Sep	Ryanair
29 Aug - 05 Sep	Ryanair
12 Aug - 27 Aug	easyJet
22 Aug - 25 Aug	Ryanair
20 Aug - 25 Aug	Ryanair
07 Aug - 11 Aug	Ryanair
25 Aug - 31 Aug	Ryanair
23 Aug - 31 Aug	Ryanair
19 Aug - 24 Aug	Ryanair
12 Aug - 19 Aug	Ryanair
19 Aug - 25 Aug	Ryanair
13 Aug - 19 Aug	Ryanair

Also check the deals for one-way flights from London to Cancun in August.

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 August from 620€

Return flights