The fair place to meet is Denver, CO — the city closest to the midpoint of Omaha and Phoenix. From the farther side that’s about 12 hr 17 min of driving.
Recommended midpoint
Denver, CO
From Omaha
10 hr 13 min
487 mi to Denver
From Phoenix
12 hr 17 min
586 mi to Denver
Omaha has the shorter trip; the split is off by about 2 hr 4 min. The alternatives below can even it out. Omaha and Phoenix are about 1,035 miles apart.
Omaha and Phoenix are about 1,035 miles apart by road. Split the difference and you arrive near Denver, the city closest to the halfway point between them. That puts roughly 10 hr 13 min of driving on the Omaha side and 12 hr 17 min on the Phoenix side — the fairest single meeting point among the cities near the middle.
Over this distance most people will fly rather than drive the whole way. Denver still makes a fair, central place for Omaha and Phoenix to converge, splitting the travel instead of asking one side to cross the country.
If Denver doesn't have what you're after, Albuquerque and Oklahoma City are also close to the midpoint and worth a look — each keeps the drive reasonably balanced between Omaha and Phoenix.
Denver is the capital and most populous city of the U.S. state of Colorado. Officially a consolidated city and county, it is located in the South Platte River valley on the western edge of the High Plains, and is just east of the Front Range of the Rocky… Read more →
Omaha is the most populous city in the U.S. state of Nebraska. It is located in the Midwestern United States along the Missouri River, about 10 mi (15 km) north of the mouth of the Platte River. Read more →
Phoenix is the capital and most populous city of the U.S. state of Arizona. With over 1.6 million residents at the 2020 census, Phoenix is the fifth-most populous city in the United States and the most populous state capital. Read more →
City descriptions adapted from Wikipedia (CC BY-SA); photos via Wikimedia Commons, credited above.
Estimates use straight-line distance and typical road speeds; real drive times vary with route and traffic.