ST. LOUIS – Thinking about an extreme road trip? Here’s one idea. The longest drive between any two cities in the contiguous United States stretches more than 3,600 miles from Cape Flattery, Washington, to Key West, Florida.
That’s according to the research team at World Geography website StudyCountry.com , which took this curiosity a step further. They claim that going from one driving endpoint in Key West’s Fort Zachary Taylor to the other in Cape Flattery measures to 3,689 miles.
To take the most efficient route from Key West to Cape Flattery, according to Google Maps , you must drive through St. Louis.
Hypothetically, when driving in either direction, you would take Interstate 70 from the Missouri portion of the St. Louis metro all the way to or from Kansas City, and you would take Interstate 64 from the Illinois portion of the St. Louis metro all the way to or from Mt. Vernon.
From Cape Flattery, St. Louis is around 2,300 miles away. From Key West, St. Louis is around 1,400 miles away.