The destination of the air traveler to Ann Arbor is most likely Detroit Metropolitan Airport, which is only 15 minutes east of the city. Served by 14 major commercial airlines, Detroit Metropolitan serviced more than 32 million passengers in 2003, making it the 10th busiest terminal in North America and 17th busiest in the world. 18,000 people are employed at the facility, which also moves more than 500 million pounds of freight each year. Local general aviation facilities include Ann Arbor City Airport and Willow Run Airport. Passenger rail transportation is available from east and Detroit, as well as from the west and Chicago via Amtrak.
Principal highways leading into Ann Arbor are east-west I-94 and M-14 and north-south U.S. 23.
Ann Arbor Transit Authority buses link all parts of the city. The University of Michigan also provides free bus service to all campus areas. Downtown, Main Street, and the University of Michigan campus are easily explored on foot.