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

Return flights

27 Oct - 12 Nov	China Eastern
27 Oct - 23 Nov	Air China
27 Oct - 10 Nov	China Eastern
19 Oct - 02 Nov	Air China
30 Oct - 02 Nov	Air China
28 Oct - 12 Nov	Vietnam Airlines
13 Oct - 19 Oct	Air China
30 Oct - 13 Nov	Air China
21 Oct - 10 Nov	Air China
26 Oct - 10 Nov	Air China
05 Oct - 14 Oct	Air China
26 Oct - 09 Nov	Thai AirAsia
15 Oct - 22 Oct	Air China
16 Oct - 23 Oct	Air China
14 Oct - 20 Oct	China Eastern
13 Oct - 16 Oct	Air China
08 Oct - 22 Oct	Air China
21 Oct - 22 Oct	Air China
14 Oct - 18 Oct	China Eastern
13 Oct - 18 Oct	Air China

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 531€

Return flights