Cheapest return flights from London to Cancun in September from $696

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

07 Sep - 18 Sep KLM
15 Sep - 22 Sep KLM
22 Sep - 29 Sep KLM
15 Sep - 21 Sep KLM
07 Sep - 21 Sep KLM
04 Sep - 30 Sep Virgin Atlantic
01 Sep - 30 Sep Virgin Atlantic
04 Sep - 21 Sep Air France
09 Sep - 15 Sep Air Canada
02 Sep - 15 Sep Air Canada
22 Sep - 02 Oct KLM
29 Sep - 06 Oct KLM
02 Sep - 01 Oct KLM
03 Sep - 02 Oct KLM
03 Sep - 01 Oct KLM
04 Sep - 01 Oct Air France
01 Sep - 01 Oct Air France
28 Sep - 08 Oct Air France
03 Sep - 03 Oct KLM
22 Sep - 03 Oct KLM

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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