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

Return flights

05 Mar - 10 Mar	Icelandair
05 Mar - 09 Mar	Icelandair
01 Mar - 09 Mar	Icelandair
06 Mar - 09 Mar	Icelandair
01 Mar - 10 Mar	Icelandair
05 Mar - 17 Mar	Icelandair
10 Mar - 27 Mar	Icelandair
07 Mar - 27 Mar	Icelandair
03 Mar - 10 Mar	Icelandair
09 Mar - 16 Mar	jetBlue
03 Mar - 12 Apr	WestJet
04 Mar - 13 Apr	Vueling Airlines
18 Mar - 01 Apr	Vueling Airlines
18 Mar - 12 Apr	Vueling Airlines
18 Mar - 08 Apr	Iberia
19 Mar - 07 Apr	SWISS
24 Mar - 08 Apr	Vueling Airlines
07 Mar - 19 Apr	Air Canada
03 Mar - 08 Apr	Aer Lingus
19 Mar - 05 Apr	Brussels 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 551€

Return flights