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

Return flights

14 May - 20 May	KLM
12 May - 19 May	Air Dolomiti
13 May - 20 May	Lufthansa
04 May - 18 May	Lufthansa
12 May - 26 May	KLM
04 May - 19 May	Lufthansa
13 May - 17 May	Air Dolomiti
11 May - 17 May	Air Dolomiti
14 May - 19 May	Virgin Atlantic
07 May - 11 May	Lufthansa
26 May - 06 Jun	KLM
29 May - 02 Jun	KLM
23 May - 15 Jun	KLM
29 May - 13 Jun	KLM
29 May - 07 Jun	KLM
24 May - 02 Jun	Lufthansa
30 May - 07 Jun	KLM
30 May - 06 Jun	KLM
22 May - 06 Jun	KLM
18 May - 22 Jun	Lufthansa

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 859€

Return flights