I bought flight tickets to Kaunas, but a few hours after the plane will land I need to be in Vilnius. What are the best travel options?
You have few options:
Travel by train. But first of all you need to catch a bus or taxi ant travel to Kaunas train station.
Same with traveling by bus. First you need to get to Kaunas bus station (it’s near the train station).
Or you can rent a car. For example – CityBee. You can rent a car in Kaunas airport and left it where do you want in Vilnius. More about ir you can read here: http://lithuaniafaq.eu/question/the-easiest-way-to-rent-a-car-in-vilnius/