Detroit Metropolitan Wayne County Airport (DTW) remains Michigan's busiest airport, serving nearly 33 million passengers in 2024. The airport offers a variety of domestic and international flights, with some of the longest routes spanning thousands of miles. According to Cirium, an aviation analytics company, the longest direct flight from DTW exceeds 16 hours.
The list of long-haul routes begins with Delta Air Lines' service to London Heathrow (LHR), covering a distance of 3,766 miles. This route utilizes an Airbus A330-200 aircraft configured with four cabin classes. In January, Delta provided 6,913 one-way seats on this route.
Another European destination is Amsterdam Schiphol Airport (AMS), served by Delta's Airbus A330-300 fleet over a distance of 3,940 miles. The airline offered 26,226 one-way seats for this route in January.