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

Return flights

04 May - 13 May	Air Canada
11 May - 25 May	Air Canada
02 May - 18 May	Air Canada
10 May - 17 May	Air Canada
06 May - 20 May	Air Canada
14 May - 25 May	Air Canada
04 May - 20 May	Air Canada
14 May - 26 May	Air Canada
18 May - 25 May	Air Canada
06 May - 13 May	Air Canada
14 May - 23 Jun	Air Canada
21 May - 04 Jun	Air Canada
20 May - 03 Jun	Air Canada
25 May - 18 Jun	Lufthansa
23 May - 02 Jun	Air Canada
15 May - 01 Jun	Air Canada
24 May - 05 Jun	Air Canada
25 May - 08 Jun	Lufthansa
25 May - 30 Jun	Lufthansa
20 May - 10 Jun	Air Canada

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 720€

Return flights