The Bert Mooney Airport is served by Alaska Airlines, Sky West, Horizon Air, and Delta Airlines. Most flights connect in Salt Lake City or through Bozeman/Seattle. Greyhound and Rimrock lines provide bus transportation.
The principal highways into Butte are Interstate-15, running north and south, and Interstate-90, approaching from the northwest, which intersect in the city. A network of seven state highways also serves Butte.
Butte is laid out on a grid pattern, although some streets run diagonally to follow railroad or freeway routes. Harrison Avenue is the main north-south thoroughfare. Butte Transit System provides bus service.