AirHint found the following cheapest return flights from Mexico City (MEX) to London (LHR) in October 2025 (see full year).

Return flights

17 Oct - 03 Nov	Avianca
24 Oct - 02 Nov	Viva
27 Oct - 10 Nov	Volaris
30 Oct - 19 Nov	Volaris
21 Oct - 11 Nov	WestJet
03 Oct - 14 Oct	Volaris
07 Oct - 14 Oct	Viva
19 Oct - 04 Nov	Viva
17 Oct - 04 Nov	Volaris
20 Oct - 04 Nov	Volaris
01 Oct - 10 Oct	Viva
15 Oct - 22 Oct	Aeromexico
01 Oct - 08 Oct	Viva
28 Oct - 03 Nov	Volaris
26 Oct - 08 Nov	Volaris
06 Oct - 20 Oct	Viva
05 Oct - 08 Oct	Viva
16 Oct - 24 Oct	Aeromexico
02 Oct - 15 Oct	Arajet
13 Oct - 20 Oct	Aeromexico

Also check the deals for one-way flights from Mexico City to London in October.

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 October from $715

Return flights