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

Return flights

02 Mar - 12 Mar	KLM
13 Mar - 24 Mar	KLM
11 Mar - 25 Mar	Delta
04 Mar - 11 Mar	Delta
02 Mar - 09 Mar	Delta
07 Mar - 17 Mar	SWISS
10 Mar - 17 Mar	SWISS
22 Mar - 30 Mar	Lufthansa
03 Mar - 17 Mar	Virgin Atlantic
09 Mar - 19 Mar	SWISS
30 Mar - 07 Apr	Lufthansa
26 Mar - 02 Apr	Lufthansa
30 Mar - 08 Apr	Lufthansa
29 Mar - 08 Apr	Lufthansa
30 Mar - 11 Apr	Lufthansa
26 Mar - 09 Apr	SWISS
26 Mar - 06 Apr	Lufthansa
28 Mar - 07 Apr	SWISS
27 Mar - 04 Apr	SWISS
26 Mar - 05 Apr	Lufthansa

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 $670

Return flights