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

Return flights

21 Apr - 30 Apr	SWISS
21 Apr - 29 Apr	SWISS
23 Apr - 30 Apr	SWISS
21 Apr - 27 Apr	SWISS
15 Apr - 27 Apr	British Airways
22 Apr - 29 Apr	SWISS
30 Apr - 05 May	SWISS
14 Apr - 11 May	Air Canada
15 Apr - 12 May	Air Canada
26 Apr - 03 May	British Airways
23 Apr - 07 May	SWISS
21 Apr - 25 Apr	SWISS
19 Apr - 28 Apr	British Airways
30 Apr - 07 May	SWISS
30 Apr - 10 May	SWISS
16 Apr - 26 Apr	SWISS
15 Apr - 19 Apr	SWISS
29 Apr - 04 May	SWISS
29 Apr - 06 May	SWISS
20 Apr - 04 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 555€

Return flights