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

Return flights

28 Dec - 16 Jan	Pegasus Airlines
02 Dec - 27 Jan	Ryanair
30 Dec - 14 Jan	AJet
28 Dec - 17 Jan	Ryanair
28 Dec - 12 Jan	Ryanair
29 Dec - 13 Jan	Ryanair
27 Dec - 12 Jan	Ryanair
27 Dec - 17 Jan	Ryanair
11 Dec - 13 Jan	Ryanair
30 Dec - 17 Jan	Ryanair
08 Dec - 20 Dec	Ryanair
01 Dec - 07 Dec	Emirates
02 Dec - 15 Dec	Emirates
01 Dec - 22 Dec	Emirates
01 Dec - 06 Dec	Emirates
14 Dec - 27 Dec	Ryanair
02 Dec - 22 Dec	Emirates
02 Dec - 04 Dec	Emirates
03 Dec - 15 Dec	Emirates
01 Dec - 08 Dec	Emirates

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 690€

Return flights