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

Return flights

03 Dec - 20 Dec	Ryanair
03 Dec - 10 Dec	Ryanair
10 Dec - 20 Jan	Wizz Air
09 Dec - 18 Jan	Wizz Air
03 Dec - 30 Dec	Wizz Air
15 Dec - 12 Jan	Norwegian
12 Dec - 22 Dec	Norwegian
29 Dec - 18 Jan	Norwegian
29 Dec - 16 Jan	Norwegian
24 Dec - 07 Jan	Finnair
27 Dec - 03 Jan	Ryanair
20 Dec - 31 Dec	Norwegian
20 Dec - 10 Jan	Norwegian
23 Dec - 08 Jan	Ryanair
26 Dec - 03 Jan	Turkish Airlines

Also check the deals for one-way flights from Oslo 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 Oslo to Hanoi in December from $652

Return flights