The fair place to meet is Columbus, OH — the city closest to the midpoint of Boston and Kansas City. From the farther side that’s about 13 hr 28 min of driving.
Recommended midpoint
Columbus, OH
From Boston
13 hr 28 min
642 mi to Columbus
From Kansas City
12 hr 59 min
620 mi to Columbus
Kansas City has the shorter trip; the split is off by about 29 min. The alternatives below can even it out. Boston and Kansas City are about 1,248 miles apart.
Boston and Kansas City are about 1,248 miles apart by road. Split the difference and you arrive near Columbus, the city closest to the halfway point between them. That puts roughly 13 hr 28 min of driving on the Boston side and 12 hr 59 min on the Kansas City 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. Columbus still makes a fair, central place for Boston and Kansas City to converge, splitting the travel instead of asking one side to cross the country.
If Columbus doesn't have what you're after, Cleveland and Detroit are also close to the midpoint and worth a look — each keeps the drive reasonably balanced between Boston and Kansas City.
Columbus is the capital and most populous city of the U.S. state of Ohio. With a population of 905,748 at the 2020 census, it is the 14th-most populous city in the U.S., second-most populous city in the Midwest, and third-most populous U.S. state capital. Read more →
Boston is the capital and most populous city of the U.S. state of Massachusetts. It serves as a cultural and financial center of New England, a region of the Northeastern United States. Read more →
Kansas City, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by both population and area. It is located on the Missouri River at its confluence with the Kansas River, within Jackson, Clay, Platte and Cass counties. 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.