Cheapest return flights from London to Cancun in September from $610

Best time to book flights for London (LHR) to Cancun (CUN) flights at AirHint

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

Return flights

28 Sep - 05 Oct Air Canada
16 Sep - 20 Sep Air Canada
14 Sep - 21 Sep Air Canada
15 Sep - 24 Sep Air Canada
18 Sep - 26 Sep Air Canada
17 Sep - 29 Sep Air Canada
03 Sep - 18 Sep Air Canada
15 Sep - 29 Sep Air Canada
17 Sep - 30 Sep Air Canada
03 Sep - 17 Sep Air Canada
21 Sep - 25 Sep Air Canada
27 Sep - 05 Oct Air Canada
24 Sep - 02 Oct Air Canada
20 Sep - 02 Oct Air Canada
20 Sep - 04 Oct Air Canada
23 Sep - 01 Oct Air Canada
27 Sep - 04 Oct Air Canada
10 Sep - 01 Oct Air Canada
22 Sep - 03 Oct KLM
18 Sep - 02 Oct Air Canada

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

Skyscanner

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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