Lambert-St. Louis International Airport (airport code STL) is located approximately 10 miles northwest of downtown St. Louis, Missouri, and is in the Top 50 of busiest US airports with over 12 million passengers each year. The airport has two terminals. Terminal 1 has three concourses, A, B and D and Terminal 2 has Concourse E and serves international travelers. Terminal 1 is undergoing renovations and improvements. Both terminals have a MetroLink rail station with direct trains to downtown St. Louis. Buses, taxis and rental cars are also available. Thirteen commercial airlines provide service to the airport with non-stop service across the US and in Canada, Mexico and the Caribbean.