AirHint found the following cheapest return flights from London (LTN) to Hanoi (HAN) in December 2025 (see full year).

Return flights

01 Dec - 22 Dec	Wizz Air UK
05 Dec - 22 Dec	Wizz Air UK
08 Dec - 15 Dec	Wizz Air UK
01 Dec - 03 Jan	Wizz Air UK
07 Dec - 22 Dec	Wizz Air UK
08 Dec - 31 Dec	Wizz Air UK
29 Dec - 12 Jan	Wizz Air UK
13 Dec - 05 Jan	Ryanair
13 Dec - 01 Jan	Wizz Air
13 Dec - 03 Jan	Wizz Air
12 Dec - 06 Jan	Wizz Air UK
28 Dec - 05 Jan	Wizz Air UK
15 Dec - 05 Jan	Wizz Air UK
20 Dec - 05 Jan	Wizz Air UK
26 Dec - 31 Dec	Wizz Air UK
17 Dec - 05 Jan	easyJet
22 Dec - 28 Dec	easyJet
20 Dec - 31 Dec	Wizz Air UK
14 Dec - 31 Dec	Wizz Air UK

Also check the deals for one-way flights from London to Hanoi in December.

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 December from 618€

Return flights