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

Return flights

29 Aug - 06 Sep	Ryanair
27 Aug - 06 Sep	Ryanair
26 Aug - 06 Sep	Ryanair
28 Aug - 06 Sep	Ryanair
29 Aug - 05 Sep	Ryanair
26 Aug - 19 Sep	Ryanair
23 Aug - 06 Sep	Ryanair
31 Aug - 28 Sep	Ryanair
30 Aug - 13 Sep	Ryanair
29 Aug - 09 Sep	Ryanair
19 Aug - 26 Aug	Ryanair
16 Aug - 19 Aug	Ryanair
21 Aug - 31 Aug	Ryanair
14 Aug - 19 Aug	Ryanair
05 Aug - 19 Aug	easyJet
12 Aug - 19 Aug	Ryanair
11 Aug - 14 Aug	easyJet
21 Aug - 25 Aug	Ryanair
25 Aug - 31 Aug	Ryanair
02 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.

Book a cheap hotel in Cancun

Cheap car rent in Cancun

Cheapest return flights from London to Cancun in August from 682€

Return flights