The Turkish national carrier is set to open an Istanbul-Tallinn-Vilnius-Istanbul line on June 11.
According to aviation media company Routes, the airline will fly to Tallinn three times a week using the Airbus A319 aircraft with a capacity of 132. From there, it will continue to Vilnius.
Turkish Airlines currently flies to around 150 international and 40 domestic destinations. The hub of the company is in Istanbul.
The air route will be the first regular connection between Tallinn and Istanbul.
Tallinn Airport currently has regular air connections to 18 countries.