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

Return flights

03 Oct - 17 Oct	China Eastern
05 Oct - 18 Oct	Air China
03 Oct - 15 Oct	China Eastern
05 Oct - 19 Oct	Air China
02 Oct - 16 Oct	Air China
04 Oct - 18 Oct	Air China
05 Oct - 12 Oct	Air China
02 Oct - 14 Oct	Air China
14 Oct - 25 Oct	Air China
01 Oct - 10 Oct	Air China
15 Oct - 03 Nov	Air China
21 Oct - 01 Nov	Air China
19 Oct - 01 Nov	Air China
18 Oct - 01 Nov	Air China
05 Oct - 02 Nov	Air China
23 Oct - 01 Nov	Air China
25 Oct - 01 Nov	Air China
31 Oct - 05 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 523€

Return flights