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

Return flights

06 Dec - 07 Dec	Ryanair	direct
05 Dec - 07 Dec	Ryanair	direct
27 Dec - 02 Jan	airBaltic	direct
28 Dec - 31 Dec	Ryanair	direct
26 Dec - 31 Dec	Norwegian Air Sweden AOC	direct
24 Dec - 28 Dec	airBaltic	direct
24 Dec - 04 Jan	airBaltic	direct

Also check the deals for one-way flights from Oslo to Riga 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.

Book a cheap hotel in Riga

Cheap car rent in Riga

Cheapest return flights from Oslo to Riga in December from $99

Return flights