AirHint found the following cheapest return flights from London (LGW) to Hanoi (HAN) in October 2026 (see full year).

Return flights

02 Oct - 13 Oct	Air China
04 Oct - 21 Oct	Air China
02 Oct - 18 Oct	Air China
02 Oct - 10 Oct	Air China
05 Oct - 21 Oct	Air China
04 Oct - 11 Oct	Air China
04 Oct - 18 Oct	Air China
05 Oct - 19 Oct	Air China
05 Oct - 23 Oct	Air China
15 Oct - 25 Oct	Air China
19 Oct - 04 Nov	Air China
23 Oct - 03 Nov	Air China
25 Oct - 03 Nov	Air China
16 Oct - 01 Nov	Air China
18 Oct - 01 Nov	Air China
19 Oct - 01 Nov	Air China
23 Oct - 02 Nov	Air China
24 Oct - 07 Nov	Air China
29 Oct - 11 Nov	Air China
25 Oct - 08 Nov	Air China

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 526€

Return flights