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

Return flights

26 Jan - 22 Feb	ITA Airways
15 Jan - 18 Jan	SWISS
06 Jan - 13 Jan	Air Dolomiti
01 Jan - 01 Feb	Air Dolomiti
14 Jan - 28 Jan	British Airways
14 Jan - 19 Jan	British Airways
21 Jan - 28 Jan	British Airways
14 Jan - 22 Jan	British Airways
12 Jan - 19 Jan	British Airways
15 Jan - 25 Jan	British Airways
19 Jan - 25 Jan	British Airways
26 Jan - 01 Feb	British Airways
28 Jan - 01 Feb	British Airways
26 Jan - 15 Feb	British Airways
19 Jan - 02 Feb	British Airways
08 Jan - 25 Jan	British Airways
26 Jan - 23 Feb	British Airways
21 Jan - 04 Feb	British Airways
28 Jan - 06 Feb	British Airways
19 Jan - 01 Feb	British Airways

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 $961

Return flights