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

Return flights

06 Mar - 13 Mar	Iberojet
04 Mar - 11 Mar	Flair Airlines
10 Mar - 18 Mar	TAP
12 Mar - 26 Mar	TAP
12 Mar - 16 Mar	TAP
12 Mar - 15 Mar	jetBlue
06 Mar - 20 Mar	Iberojet
29 Mar - 12 Apr	Flair Airlines
30 Mar - 12 Apr	Air Canada
01 Mar - 09 Mar	Aeromexico
06 Mar - 21 Mar	TAP
01 Mar - 15 Mar	Frontier Airlines
26 Mar - 12 Apr	jetBlue
24 Mar - 12 Apr	Aeromexico
28 Mar - 11 Apr	Frontier Airlines
28 Mar - 10 Apr	Frontier Airlines
27 Mar - 11 Apr	jetBlue
27 Mar - 12 Apr	jetBlue
28 Mar - 05 Apr	Frontier Airlines
27 Mar - 05 Apr	KLM

Also check the deals for one-way flights from Cancun to London 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 Cancun to London in March from $789

Return flights