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

Return flights

25 Sep - 02 Oct	Norwegian Air Sweden AOC
25 Sep - 14 Oct	airBaltic	direct
26 Sep - 16 Oct	Lufthansa
26 Sep - 02 Oct	Ryanair
25 Sep - 16 Oct	airBaltic
18 Sep - 22 Sep	airBaltic
24 Sep - 30 Sep	Norwegian Air Sweden AOC
25 Sep - 15 Oct	airBaltic
12 Sep - 22 Sep	Lufthansa
01 Sep - 12 Sep	airBaltic	direct
01 Sep - 09 Sep	airBaltic	direct
22 Sep - 26 Sep	airBaltic
18 Sep - 21 Sep	Ryanair
24 Sep - 15 Oct	Lufthansa
08 Sep - 16 Sep	airBaltic	direct
02 Sep - 15 Sep	Turkish Airlines
02 Sep - 08 Sep	Turkish Airlines

Also check the deals for one-way flights from Riga to Tbilisi 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 return flights from Riga to Tbilisi in September from $325

Return flights