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

Return flights

13 May - 27 May	British Airways
14 May - 19 May	Avianca
18 May - 27 May	Avianca
18 May - 26 May	Avianca
07 May - 11 May	Avianca
14 May - 24 May	Avianca
13 May - 22 May	Avianca
04 May - 18 May	Avianca
19 May - 28 May	Avianca
11 May - 17 May	Avianca
29 May - 02 Jun	Avianca
26 May - 06 Jun	TAP
18 May - 22 Jun	KLM
18 May - 24 Jun	KLM
23 May - 15 Jun	Lufthansa
24 May - 02 Jun	KLM
28 May - 12 Jun	KLM
30 May - 06 Jun	Turkish Airlines
29 May - 13 Jun	Lufthansa
30 May - 07 Jun	Air France

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 617€

Return flights