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

Return flights

04 May - 07 May	KLM
12 May - 20 May	KLM
11 May - 18 May	KLM
06 May - 18 May	KLM
04 May - 09 May	KLM
06 May - 15 May	KLM
03 May - 08 May	KLM
01 May - 08 May	KLM
08 May - 15 May	KLM
01 May - 09 May	KLM
18 May - 13 Jun	KLM
30 May - 20 Jun	SWISS
29 May - 14 Jun	KLM
24 May - 02 Jun	KLM
25 May - 08 Jun	KLM
28 May - 11 Jun	Air Dolomiti
30 May - 21 Jun	KLM
26 May - 04 Jun	British Airways
25 May - 02 Jun	Air Dolomiti
01 May - 01 Jun	Air Dolomiti

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

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 London to Cancun in May from 675€

Return flights