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

Return flights

18 Mar - 29 Mar	SWISS
18 Mar - 30 Mar	SWISS
19 Mar - 30 Mar	SWISS
19 Mar - 26 Mar	SWISS
23 Mar - 30 Mar	SWISS
23 Mar - 29 Mar	SWISS
19 Mar - 29 Mar	SWISS
02 Mar - 15 Mar	SWISS
05 Mar - 15 Mar	SWISS
18 Mar - 31 Mar	SWISS
19 Mar - 16 Apr	SWISS
19 Mar - 01 Apr	SWISS
24 Mar - 03 Apr	SWISS
19 Mar - 02 Apr	SWISS
18 Mar - 02 Apr	SWISS
25 Mar - 03 Apr	Lufthansa
12 Mar - 14 Apr	Air Canada
19 Mar - 07 Apr	SWISS
22 Mar - 01 Apr	Air Canada
22 Mar - 02 Apr	Air Canada

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

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 March from 522€

Return flights