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

Return flights

26 Oct - 05 Nov	Air China
27 Oct - 16 Nov	Air China
13 Oct - 09 Nov	Wizz Air UK
26 Oct - 16 Nov	Air China
26 Oct - 26 Nov	Air China
26 Oct - 17 Nov	Air China
26 Oct - 07 Nov	Air China
26 Oct - 10 Nov	Air China
27 Oct - 10 Nov	Air China
26 Oct - 12 Nov	Air China
26 Oct - 29 Oct	Air China
01 Oct - 15 Oct	China Eastern
13 Oct - 26 Oct	Wizz Air UK
13 Oct - 28 Oct	Wizz Air UK
13 Oct - 29 Oct	Wizz Air UK
01 Oct - 13 Oct	China Eastern
01 Oct - 22 Oct	China Eastern
02 Oct - 21 Oct	China Eastern
01 Oct - 10 Oct	China Eastern
02 Oct - 24 Oct	China Eastern

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 $512

Return flights