Traveling from Milwaukee to Tucson is best accomplished by flying from Milwaukee Mitchell International Airport (MKE) to Tucson International Airport (TUS). You will likely need a connecting flight. Driving is a massive cross-country expedition of over 2,800 kilometers, which is not recommended for standard travel.
Total Distance: 2,900 km driving, 2,500 km air.
Look for flights with efficient connections in hubs like Dallas or Phoenix.
November to April for mild, sunny weather.