The Express Line service from the Airport to the Center and in the opposite direction, has been put into service since June 10, 2015. According to the route the buses moving through the front of the 1st and 2nd terminals of the International Airport named after Heydar Aliyev, shall stop at the square located in front of the Baku Railway Station after a one-minute short stop at "Koroglu" Metro Station. The buses are currently operated with headway of 30 minutes during 24 hours.