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

Return flights

01 Oct - 08 Oct	China Eastern
02 Oct - 09 Oct	China Southern
02 Oct - 16 Oct	China Southern
28 Oct - 04 Nov	Wizz Air UK
30 Oct - 11 Nov	Air China
31 Oct - 24 Nov	Air China
20 Oct - 26 Oct	Wizz Air Malta
27 Oct - 04 Nov	China Eastern
27 Oct - 03 Nov	China Eastern
29 Oct - 05 Nov	China Eastern
28 Oct - 05 Nov	Wizz Air UK
31 Oct - 17 Nov	Air China
30 Oct - 16 Nov	Air China
30 Oct - 29 Nov	Air China
13 Oct - 20 Oct	Wizz Air UK
13 Oct - 21 Oct	Wizz Air UK
05 Oct - 12 Oct	Air China
15 Oct - 22 Oct	Wizz Air Malta
14 Oct - 22 Oct	Wizz Air UK
03 Oct - 09 Oct	China Southern

Also check the deals for one-way flights from London to Hanoi 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 Hanoi in October from $563

Return flights