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

One-Way flights

23 Apr	Iberia
30 Apr	Iberia
11 Apr	Aer Lingus
12 Apr	Virgin Atlantic	direct
15 Apr	Virgin Atlantic	direct
28 Apr	Finnair
10 Apr	Aer Lingus
03 Apr	Aer Lingus
06 Apr	Aer Lingus
10 Apr	Virgin Atlantic	direct

Also check the deals for return 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 one-way flights from London to Cancun in April from $485

One-Way flights