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

Return flights

13 Sep - 20 Sep	Volaris
07 Sep - 20 Sep	Porter Airlines (Canada) Ltd
10 Sep - 20 Sep	Volaris
05 Sep - 20 Sep	Volaris
06 Sep - 20 Sep	Volaris
13 Sep - 20 Sep	British Airways	direct
02 Sep - 20 Sep	British Airways	direct
03 Sep - 20 Sep	British Airways	direct
04 Sep - 20 Sep	British Airways	direct
05 Sep - 20 Sep	British Airways	direct
26 Sep - 07 Oct	British Airways	direct
26 Sep - 03 Oct	British Airways	direct

Also check the deals for one-way flights from Cancun to London 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 Cancun to London in September from 718€

Return flights