Cheapest return flights from Oslo to Riga in September from $36

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

Return flights

03 Sep - 17 Sep Ryanair direct
10 Sep - 17 Sep Ryanair direct
06 Sep - 17 Sep Ryanair direct
03 Sep - 10 Sep Ryanair direct
03 Sep - 13 Sep Ryanair direct
10 Sep - 13 Sep Ryanair direct
15 Sep - 17 Sep Ryanair direct
06 Sep - 10 Sep Ryanair direct
06 Sep - 13 Sep Ryanair direct
03 Sep - 19 Sep Ryanair direct
20 Sep - 09 Oct Ryanair direct
20 Sep - 01 Oct Ryanair direct
22 Sep - 09 Oct Ryanair direct
22 Sep - 13 Oct Ryanair direct
22 Sep - 01 Oct Ryanair direct
20 Sep - 10 Oct Ryanair direct
22 Sep - 10 Oct Ryanair direct
10 Sep - 01 Oct Ryanair direct
15 Sep - 01 Oct Ryanair direct
25 Sep - 09 Oct Ryanair 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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