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

Return flights

06 Jan - 09 Feb	Pegasus Airlines
07 Jan - 09 Feb	Pegasus Airlines
07 Jan - 29 Jan	Pegasus Airlines
18 Jan - 16 Feb	Pegasus Airlines
07 Jan - 21 Jan	Air China
15 Jan - 22 Jan	Air China
01 Jan - 31 Jan	Air China
06 Jan - 23 Jan	Pegasus Airlines
04 Jan - 18 Jan	Shenzhen Airlines
17 Jan - 02 Feb	Air China
12 Jan - 23 Feb	Air China
20 Jan - 28 Jan	Air China
09 Jan - 23 Jan	Air China
05 Jan - 26 Jan	Air China
09 Jan - 22 Jan	Air China
26 Jan - 26 Feb	Air China
26 Jan - 24 Feb	Air China
29 Jan - 06 Feb	Air China
19 Jan - 16 Feb	Pegasus Airlines
25 Jan - 08 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 487€

Return flights