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

Return flights

02 Mar - 11 Mar	SWISS
02 Mar - 09 Mar	SWISS
10 Mar - 15 Mar	Virgin Atlantic
11 Mar - 25 Mar	Virgin Atlantic
18 Mar - 25 Mar	Virgin Atlantic
02 Mar - 12 Mar	KLM
05 Mar - 12 Mar	Virgin Atlantic
09 Mar - 18 Mar	Air Canada
12 Mar - 19 Mar	Air Canada
13 Mar - 25 Mar	Air Canada
23 Mar - 01 Apr	British Airways
23 Mar - 02 Apr	British Airways
19 Mar - 10 Apr	Brussels Airlines
13 Mar - 02 Apr	SWISS
31 Mar - 14 Apr	Air Canada
28 Mar - 03 Apr	Air Canada
25 Mar - 07 Apr	Air Canada
25 Mar - 06 Apr	Air Canada
23 Mar - 12 Apr	British Airways
28 Mar - 04 Apr	Vueling Airlines

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 $683

Return flights