AirHint found the following cheapest return flights from London (LHR) to Mexico City (MEX) in May 2026 (see full year).

Return flights

11 May - 17 May	Aeromexico	direct
08 May - 24 May	Iberia
14 May - 26 May	Aeromexico
12 May - 26 May	Aeromexico
07 May - 11 May	Aeromexico
06 May - 13 May	Air Canada
04 May - 17 May	Air Canada
11 May - 18 May	Aeromexico
04 May - 21 May	Air Canada
04 May - 18 May	Air Canada
27 May - 03 Jun	Aeromexico
27 May - 04 Jun	Aeromexico
25 May - 10 Jun	Lufthansa
15 May - 05 Jun	Aeromexico
28 May - 07 Jun	Iberia
23 May - 15 Jun	Avianca

Also check the deals for one-way flights from London to Mexico City in May.

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 Mexico City in May from $784

Return flights