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

Return flights

26 Aug - 09 Sep	TUI	direct
29 Aug - 09 Sep	TUI	direct
25 Aug - 08 Sep	TUI	direct
28 Aug - 08 Sep	TUI	direct
24 Aug - 07 Sep	TUI	direct
31 Aug - 14 Sep	TUI	direct
28 Aug - 11 Sep	TUI	direct
21 Aug - 04 Sep	TUI	direct
29 Aug - 10 Sep	TUI
31 Aug - 15 Sep	TUI
26 Aug - 27 Aug	TUI
26 Aug - 28 Aug	TUI	direct
25 Aug - 26 Aug	TUI	direct
29 Aug - 31 Aug	TUI	direct
25 Aug - 28 Aug	TUI	direct
28 Aug - 31 Aug	TUI	direct
22 Aug - 25 Aug	American Airlines
25 Aug - 27 Aug	TUI
22 Aug - 26 Aug	Norse Atlantic Airways (UK)
20 Aug - 23 Aug	Norse Atlantic Airways (UK)

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 352€

Return flights