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

Return flights

03 Jan - 17 Jan	Air China
14 Jan - 26 Jan	Air China
06 Jan - 28 Jan	Air China
02 Jan - 24 Jan	Air China
05 Jan - 26 Jan	Air China
02 Jan - 25 Jan	Air China
01 Jan - 27 Jan	Air China
05 Jan - 25 Jan	Air China
15 Jan - 29 Jan	Air China
12 Jan - 25 Jan	Air China
21 Jan - 03 Feb	Air China
20 Jan - 12 Feb	Air China
13 Jan - 03 Feb	Air China
19 Jan - 04 Feb	Air China
31 Jan - 21 Feb	Wizz Air UK
18 Jan - 03 Feb	Air China
31 Jan - 17 Feb	Wizz Air UK
08 Jan - 15 Feb	Air China
14 Jan - 11 Feb	Air China
21 Jan - 11 Feb	Air China

Also check the deals for one-way flights from London to Hanoi in January.

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 January from 385€

Return flights