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

Return flights

23 Jun - 07 Jul	Air Canada
28 Jun - 12 Jul	Air Canada
28 Jun - 03 Jul	Air Canada
30 Jun - 03 Jul	Air Canada
08 Jun - 15 Jun	Delta
14 Jun - 21 Jun	Delta
01 Jun - 17 Jun	Delta
01 Jun - 14 Jun	Delta
15 Jun - 25 Jun	Delta
03 Jun - 10 Jun	Delta
09 Jun - 16 Jun	Delta
18 Jun - 25 Jun	Delta
15 Jun - 21 Jun	Delta
15 Jun - 22 Jun	Delta

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

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 June from $796

Return flights