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

Return flights

15 Apr - 29 Apr	Aer Lingus
15 Apr - 22 Apr	Aer Lingus
12 Apr - 26 Apr	Aer Lingus
25 Apr - 29 Apr	Air Canada
16 Apr - 23 Apr	Air Canada
14 Apr - 30 Apr	Air Canada
15 Apr - 02 May	Air Canada
14 Apr - 28 Apr	Air Canada
13 Apr - 23 Apr	Air Canada
11 Apr - 21 Apr	Air Canada
18 Apr - 25 Apr	Air Canada
19 Apr - 05 May	Air Canada
20 Apr - 06 May	Air Canada
26 Apr - 03 May	Air Canada
17 Apr - 03 May	Air Canada
17 Apr - 01 May	Air Canada
30 Apr - 10 May	Air Canada
27 Apr - 03 May	Air Canada
28 Apr - 04 May	Air Canada
27 Apr - 07 May	Air Canada

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 $562

Return flights