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

Return flights

23 Sep - 30 Sep	airBaltic	direct
20 Sep - 21 Sep	airBaltic	direct
21 Sep - 22 Sep	airBaltic	direct
15 Sep - 17 Sep	airBaltic	direct
24 Sep - 26 Sep	airBaltic	direct
18 Sep - 21 Sep	airBaltic	direct
17 Sep - 19 Sep	airBaltic	direct
05 Sep - 07 Sep	airBaltic	direct
11 Sep - 12 Sep	airBaltic	direct
01 Sep - 03 Sep	Ryanair

Also check the deals for one-way flights from Tallinn 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.

Book a cheap hotel in Riga

Cheap car rent in Riga

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

Return flights