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

Return flights

20 May - 26 May	Air Transat
10 May - 13 May	Air Transat
16 May - 23 May	Air Transat
23 May - 06 Jun	Air Transat
20 May - 30 May	Air Transat
20 May - 27 May	Air Transat
25 May - 30 May	Air Transat
20 May - 03 Jun	Air Transat
23 May - 30 May	Air Transat
15 May - 22 May	Air Europa
19 May - 26 May	Air Transat
17 May - 28 May	Air Transat
26 May - 07 Jun	Air Transat
23 May - 08 Jun	Air Transat
26 May - 08 Jun	Air Transat
29 May - 07 Jun	Air Transat
22 May - 06 Jun	Air Transat
27 May - 04 Jun	Air Transat
28 May - 04 Jun	Air Transat
25 May - 01 Jun	Air Transat

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 620€

Return flights