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

Return flights

21 Jan - 24 Jan	VietJet Air
25 Jan - 01 Feb	VietJet Air
12 Jan - 15 Jan	VietJet Air
19 Jan - 26 Jan	VietJet Air
21 Jan - 28 Jan	China Eastern
23 Jan - 26 Jan	China Eastern
14 Jan - 26 Jan	Air China
12 Jan - 25 Jan	VietJet Air
24 Jan - 31 Jan	China Eastern
16 Jan - 24 Jan	China Eastern
14 Jan - 27 Jan	Air China
25 Jan - 04 Feb	China Eastern
25 Jan - 23 Feb	VietJet Air
28 Jan - 26 Feb	VietJet Air
11 Jan - 01 Feb	Thai Airways
27 Jan - 06 Feb	VietJet Air
01 Jan - 02 Feb	China Eastern
08 Jan - 21 Feb	China Eastern
26 Jan - 02 Feb	Vietnam Airlines

Also check the deals for one-way flights from Hanoi to London 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 Hanoi to London in January from 504€

Return flights