To reach St. Paul, most drivers use I94, which runs east west, or I35E, which runs north south. U.S. 52, MN 280 and MN 5 are also busy travel routes. Inside the city, the downtown streets are laid out on a grid, but this can be deceiving. The Mississippi River and other factors have rendered the grid less than logical. There are numerous bridges that cross between St. Paul and twin city neighbor, Minneapolis. Driving in St. Paul is complicated by frequent winter snowfall, but snow ploughs generally clear roads quickly.
The main airport is the Minneapolis-Saint Paul International Airport. MSP International is easily accessed via MN 5, I494, MN 77 and MN 62. The airport is a hub for Delta, Sun Country and Mesaba Airlines. Other carriers include Air Canada, Frontier, US Air, American and United. International destinations are served by Delta. Regional carriers include Compass Airlines, Great Lakes Airlines and Pinnacle Airlines. Major international route include Amsterdam, Tokyo, London and Paris. Major Canada routes include Toronto, Winnipeg, Calgary, Edmonton and Vancouver. Major domestic routes include Denver, Atlanta, Chicago, Phoenix, Seattle, Los Angeles, Las Vegas, Detroit and Milwaukee. General aviation is served by St. Paul Downtown Airport.
A Metro Transit bus system serves St. Paul and nearby Minneapolis. Traveling between points in the two cities can be accomplished with a bus map in hand. Although St. Paul isn't linked by rail or light rail, train travel can still be useful. To use Amtrak, take the Empire Builder, which links Chicago to Seattle. It stops at Midway Station in Minneapolis. The Northstar commuter rail connects Anoka, Coon Rapids, Elk River and Fridley to Minneapolis. In addition, a Northstar commuter bus connects St. Cloud to Minneapolis. The Hiawatha Line, the Minneapolis light rail system, connects Bloomington, the Mall of America and MSP International Airport to Minneapolis. All of these take visitors to downtown Minneapolis where you can catch a bus to St. Paul.
St. Paul has created many bike lanes to serve commuting and recreational bicyclists. In addition, there are many on-road bicycle rentals in the downtown area. When the temperature is pleasant, St. Paul is a walkable city with excellent sidewalks, numerous parks and set-aside pathways to encourage pedestrian travel. Due to long, cold, snowy winters, downtown St. Paul has an enclosed pedestrian skyway that covers about five miles and 25 city blocks.