AirHint found the following cheapest one-way flights from Ljubljana (LJU) to Riga (RIX) in September 2025 (see full year).

One-Way flights

04 Sep	airBaltic	direct
25 Sep	airBaltic	direct
18 Sep	airBaltic	direct
01 Sep	Norwegian Air Sweden AOC
02 Sep	Air Serbia
14 Sep	airBaltic	direct
11 Sep	airBaltic	direct
19 Sep	Air Serbia
09 Sep	Air Serbia
17 Sep	Air Serbia

Also check the deals for return flights from Ljubljana to Riga in September.

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 one-way flights from Ljubljana to Riga in September from 79€

One-Way flights