Minneapolis-Saint Paul International Airport is the 12th busiest airfield in the US, but it offers comfort and ease to its flyers with many immenities. Terminal 1 and Terminal 2 each have adjoining parking ramp facilities. Travelers who need to transfer from one terminal to the other use the light rail transit service. It is the 3rd largest hub airport for Delta Air Lines and Delta Connection partners Compass Airlines, Mesaba Airlines, and Pinnacle Airlines. It also serves as the hub for Sun Country Airlines.