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

Return flights

06 May - 20 May	Aer Lingus
13 May - 26 May	Aer Lingus
06 May - 10 May	Aer Lingus
17 May - 27 May	Aer Lingus
12 May - 26 May	Aer Lingus
18 May - 27 May	Aer Lingus
17 May - 24 May	Aer Lingus
21 May - 04 Jun	Air Canada
05 May - 06 May	Virgin Atlantic
03 May - 22 Jun	Air Canada
20 May - 06 Jun	Aer Lingus
28 May - 08 Jun	Aer Lingus
07 May - 21 May	Aer Lingus
11 May - 27 May	Iberia
01 May - 23 Jun	Air Canada
06 May - 16 Jun	Lufthansa
27 May - 05 Jun	Air Canada
28 May - 07 Jun	Air Canada
30 May - 16 Jun	Air Canada
31 May - 14 Jun	Virgin Atlantic

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 770€

Return flights