There are buses every 10 or 15 minutes from Glasgow International Airport to Buchanan bus station via Central and Queen St stations (single/return £6/8.50, 25 minutes). This is a 24-hour service. Another bus, the 747, covers the same route via Finnieston and Kelvingrove, taking longer. A taxi costs £24. There are also buses from Buchanan bus station direct to/from Edinburgh Airport (£11, one hour, half-hourly).