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

Return flights

08 Oct - 12 Oct	British Airways	direct
05 Oct - 19 Oct	British Airways
01 Oct - 12 Oct	Lufthansa
02 Oct - 07 Oct	British Airways	direct
28 Oct - 11 Nov	Virgin Atlantic
28 Oct - 04 Nov	Air France
02 Oct - 18 Oct	Air Canada
09 Oct - 16 Oct	Air Canada
01 Oct - 15 Oct	Air Canada
30 Oct - 20 Nov	Air Canada
30 Oct - 09 Nov	Air Canada
31 Oct - 14 Nov	Air Canada
30 Oct - 15 Nov	Air Canada
30 Oct - 14 Nov	Air Canada
28 Oct - 12 Nov	Air Canada
31 Oct - 11 Nov	Air Canada
28 Oct - 13 Nov	Air Canada
05 Oct - 11 Oct	Air Canada
05 Oct - 26 Oct	British Airways
02 Oct - 18 Oct	British Airways	direct

Also check the deals for one-way flights from London to Mexico City 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 London to Mexico City in October from $733

Return flights