There are several ways to get to Borjomi. The cheapest way to get to Borjomi is by train. The station is located 70 meters from the Tbilisi airport. Every day at 8:45 and at 18:05, trains with a capacity of 100 people depart from it. For 20 minutes and 0.50 GEL they will take you to the central Tbilisi railway station. For the same fee you can get to the city by a shuttle bus number 37, which runs between Tbilisi and the airport from 7:00 to 23:00.
It is also possible to order a shuttle bus from the airport to the city for 10 GEL per person. The bus makes stops in the city center at Freedom Square, Heroes' Square and the 26th of May Square, the Palace of Sports. The service is offered around the clock.
In addition, you can take a cab that will bring you to the city center in 20-30 minutes, depending on traffic congestion. The trip will cost 25 GEL.
From Kutaisi there are regular minibuses in any direction. You can buy a ticket for them at the airport ticket office, as well as from the driver.