The Most Expensive Domestic Routes To Fly In The US In 2026

The most expensive flights in the United States don’t necessarily connect the farthest points in the country. In the first quarter of 2026, a flight from Eagle County Regional Airport (EGE), Colorado, near the Vail ski resorts, to Miami International Airport (MIA) cost more than $500, putting it ahead of routes connecting major metropolitan areas or transcontinental flights.