Cheapest return flights from Oslo to Riga in September from $87

AirHint found the following cheapest return flights from Oslo (OSL) to Riga (RIX) in September 2026 (see full year).

Return flights

12 Sep - 27 Sep Ryanair direct
10 Sep - 27 Sep Ryanair direct
12 Sep - 20 Sep Ryanair direct
10 Sep - 20 Sep Ryanair direct
01 Sep - 20 Sep Ryanair direct
18 Sep - 20 Sep airBaltic direct
25 Sep - 27 Sep airBaltic
18 Sep - 05 Oct Norwegian Air Sweden AOC direct
18 Sep - 27 Sep Norwegian Air Sweden AOC direct
25 Sep - 05 Oct Norwegian Air Sweden AOC direct
25 Sep - 27 Sep Norwegian Air Sweden AOC direct

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

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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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