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

Return flights

05 Jan - 13 Jan	Air China
06 Jan - 13 Jan	Air China
06 Jan - 14 Jan	Air China
07 Jan - 14 Jan	Air China
20 Jan - 29 Jan	Air China
14 Jan - 21 Jan	Air China
05 Jan - 19 Jan	Air China
23 Jan - 06 Feb	Air China
09 Jan - 18 Jan	Air China
08 Jan - 29 Jan	Air China
02 Jan - 14 Jan	Air China
07 Jan - 28 Feb	Wizz Air Malta
11 Jan - 28 Feb	Wizz Air UK
09 Jan - 28 Feb	Wizz Air UK
05 Jan - 28 Feb	Wizz Air Malta
08 Jan - 28 Feb	Wizz Air UK
06 Jan - 28 Feb	Wizz Air UK
05 Jan - 08 Feb	Air China
04 Jan - 27 Feb	Wizz Air UK
10 Jan - 28 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 $627

Return flights