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

Return flights

05 Mar - 11 Mar	SWISS
10 Mar - 30 Mar	Air Dolomiti
17 Mar - 01 Apr	SWISS
05 Mar - 10 Mar	British Airways
18 Mar - 24 Mar	KLM
11 Mar - 25 Mar	KLM
06 Mar - 11 Mar	SWISS
11 Mar - 17 Mar	KLM
09 Mar - 17 Mar	KLM
18 Mar - 31 Mar	KLM
09 Mar - 18 Mar	KLM
11 Mar - 01 Apr	KLM
31 Mar - 14 Apr	SWISS
09 Mar - 01 Apr	KLM
18 Mar - 01 Apr	KLM
10 Mar - 01 Apr	Lufthansa
13 Mar - 01 Apr	KLM
15 Mar - 01 Apr	KLM
12 Mar - 01 Apr	Lufthansa
31 Mar - 07 Apr	KLM

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 711€

Return flights