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

Return flights

27 Oct - 31 Oct	Air China
29 Oct - 31 Oct	Air China
06 Oct - 05 Nov	Shenzhen Airlines
12 Oct - 20 Oct	Air China
13 Oct - 20 Oct	Air China
14 Oct - 21 Oct	Air China
12 Oct - 15 Oct	Shenzhen Airlines
09 Oct - 12 Oct	China Southern
15 Oct - 22 Oct	Air China
01 Oct - 12 Oct	China Southern
20 Oct - 29 Oct	China Southern
26 Oct - 16 Nov	Vietnam Airlines	direct
06 Oct - 05 Nov	Vietnam Airlines	direct

Also check the deals for one-way flights from Hanoi 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 Hanoi to London in October from 571€

Return flights