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Main interstate routes include I-17, and I-19 running north-south, I-40, I-8, and I-10 running east-west, and a short stretch of I-15 running northeast/southwest through the extreme northwestern corner of the state.

I-19 departs from I-10 in the southern part of Tucson, runs through southern Tucson (including an exit serving the historic Mission San Xavier) and the retirement community of Green Valley and terminates in Nogales, in Santa Cruz County, at the international border with Mexico.

State Route 77 serves North Tucson and Tucson's northern suburbs including Casas Adobes, Catalina Foothills, Oro Valley, and Catalina.

Yuma is served by I-8, while Casa Grande served by I-8 and I-10; Flagstaff is served by I-17 and I-40.

Route 66, a major route for Midwestern emigrants prior to the advent of the interstate highway system, traversed the northern part of the state, passing through Flagstaff and Kingman.

Route 66 in Arizona closely followed the route of what is now Interstate 40 except for an 88 mile stretch between Seligman and Kingman now known as State Route 66, where the route veered to the north passing through Peach Springs.

Airports with regularly scheduled commercial flights include: Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX) in Phoenix (the largest airport and the major international airport in the state); Tucson International Airport (IATA: TUS, ICAO: KTUS) in Tucson; Phoenix-Mesa Gateway Airport (IATA: AZA, ICAO: KIWA) in Mesa; Yuma International Airport (IATA: YUM, ICAO: KYUM) in Yuma; Prescott Municipal Airport (PRC) in Prescott; Flagstaff Pulliam Airport (IATA: FLG, ICAO: KFLG) in Flagstaff, and Grand Canyon National Park Airport (GCP), a small, but busy, single-runway facility providing tourist flights, mostly from Las Vegas.

Two Amtrak routes serve Arizona communities: the Southwest Chief passes through Winslow, Flagstaff, and Kingman, while the Texas Eagle passes through Benson, Tucson, Maricopa and Yuma.