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

Return flights

14 Apr - 22 Apr	Air Canada
18 Apr - 25 Apr	Air Canada
10 Apr - 25 Apr	Air Canada
08 Apr - 15 Apr	Air Canada
20 Apr - 26 Apr	Air Canada
16 Apr - 25 Apr	Air Canada
14 Apr - 21 Apr	Air Canada
12 Apr - 23 Apr	Air Canada
13 Apr - 26 Apr	Air Canada
18 Apr - 24 Apr	Air Canada
24 Apr - 06 May	SWISS
23 Apr - 04 May	Air Canada
23 Apr - 05 May	Air Canada
24 Apr - 05 May	Air Canada
26 Apr - 07 May	Air Canada
19 Apr - 04 May	Air Canada
24 Apr - 04 May	Air Canada
22 Apr - 02 May	SWISS
30 Apr - 06 May	Air Canada
29 Apr - 11 May	SWISS

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

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 April from $723

Return flights