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

Return flights

23 Jan - 26 Jan	Ryanair
25 Jan - 07 Feb	Ryanair
22 Jan - 06 Feb	Ryanair
21 Jan - 31 Jan	Ryanair
28 Jan - 08 Feb	Ryanair
22 Jan - 31 Jan	Ryanair
13 Jan - 26 Jan	Pegasus Airlines
20 Jan - 31 Jan	Ryanair
19 Jan - 26 Jan	Pegasus Airlines
12 Jan - 19 Jan	Pegasus Airlines
17 Jan - 27 Jan	Ryanair
09 Jan - 26 Jan	Pegasus Airlines
14 Jan - 26 Jan	Pegasus Airlines
22 Jan - 03 Feb	Ryanair
19 Jan - 02 Feb	Ryanair
31 Jan - 08 Feb	Ryanair
20 Jan - 01 Feb	Ryanair
31 Jan - 03 Feb	Ryanair
23 Jan - 08 Feb	Ryanair
16 Jan - 03 Feb	Ryanair

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 495€

Return flights