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

Return flights

12 Oct - 20 Oct	Ethiopian Airlines
15 Oct - 08 Nov	Air China
16 Oct - 23 Oct	China Southern
20 Oct - 30 Oct	Air China
03 Oct - 05 Oct	Air China
19 Oct - 22 Oct	Air China
06 Oct - 08 Oct	VietJet Air
11 Oct - 19 Oct	Singapore Airlines
12 Oct - 26 Oct	Air China
08 Oct - 13 Oct	China Southern
13 Oct - 29 Oct	British Airways

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 $808

Return flights