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

Return flights

09 Jan - 16 Jan	Air China
15 Jan - 22 Jan	Air China
09 Jan - 17 Jan	Air China
15 Jan - 23 Jan	Air China
21 Jan - 28 Jan	Air China
21 Jan - 29 Jan	Air China
21 Jan - 31 Jan	Air China
05 Jan - 13 Jan	Air China
07 Jan - 16 Jan	Air China
15 Jan - 24 Jan	Air China
27 Jan - 03 Feb	Air China
27 Jan - 04 Feb	Air China
12 Jan - 09 Feb	Wizz Air
25 Jan - 07 Feb	Wizz Air UK
28 Jan - 07 Feb	Wizz Air UK
25 Jan - 03 Feb	Wizz Air UK
30 Jan - 09 Feb	Wizz Air
10 Jan - 07 Feb	Wizz Air UK
24 Jan - 07 Feb	Wizz Air UK
23 Jan - 02 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 $620

Return flights