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

Return flights

01 Oct - 08 Oct	Spirit Airlines
11 Oct - 18 Oct	Flair Airlines
05 Oct - 12 Oct	Flair Airlines
16 Oct - 22 Oct	Aeromexico
29 Oct - 09 Nov	Air Canada
24 Oct - 31 Oct	Virgin Atlantic	direct
02 Oct - 14 Oct	Delta
08 Oct - 22 Oct	Delta
04 Oct - 29 Nov	SWISS
07 Oct - 20 Oct	United
03 Oct - 22 Oct	Delta
29 Oct - 02 Nov	Air Canada
07 Oct - 26 Oct	Air France
28 Oct - 01 Nov	Air Canada
25 Oct - 01 Nov	United
30 Oct - 06 Nov	United

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

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 October from 698€

Return flights