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

Return flights

10 Dec - 17 Dec	Norwegian	direct
10 Dec - 21 Dec	Norwegian	direct
08 Dec - 17 Dec	Norwegian	direct
15 Dec - 21 Dec	Scandinavian Airlines
15 Dec - 17 Dec	Norwegian	direct
11 Dec - 17 Dec	Norwegian	direct
05 Dec - 07 Dec	Scandinavian Airlines
08 Dec - 21 Dec	Norwegian	direct
15 Dec - 21 Dec	Norwegian	direct
11 Dec - 21 Dec	Norwegian	direct

Also check the deals for one-way flights from Oslo to Prague 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 Prague in December from 120€

Return flights