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

Return flights

11 May - 20 May	Iberia
07 May - 14 May	Iberia
01 May - 15 May	WestJet
01 May - 23 May	WestJet
18 May - 02 Jun	Air Canada
01 May - 14 May	Air Canada
01 May - 21 May	Air Canada
23 May - 06 Jun	Air Canada
13 May - 13 Jun	Iberia
15 May - 31 May	Air Canada
29 May - 08 Jun	Virgin Atlantic
13 May - 20 May	British Airways	direct
11 May - 20 May	British Airways	direct
15 May - 05 Jun	Air Canada
03 May - 10 May	British Airways
18 May - 02 Jun	British Airways	direct

Also check the deals for one-way flights from Mexico City to London 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 Mexico City to London in May from 793€

Return flights