- Ted Stevens Anchorage International Airport (ANC)
- Dane County Regional Airport (MSN)
- Washington Dulles International Airport (IAD)
- Greenville-Spartanburg International Airport (GSP)
- Birmingham-Shuttlesworth International Airport (BHM)
- Piedmont Triad International Airport (GSO)
- San Francisco International Airport (SFO)
- Charlotte Douglas International Airport (CLT)
- Pensacola International Airport (PNS)
- Portland International Airport (PDX)
During the COVID-19 pandemic, Ted Stevens Anchorage International was one of the busiest in the country. A rush to ship supplies like masks, and other medical equipment led to an increase in cargo operations, according to Anchorage Daily News.
The airport is also located in a geographical position that is an excellent refueling spot for planes making long-haul flights to Asia.
The second-most-expensive airport on the list is the Dane County Regional Airport in Wisconsin. It has 13 gates on one concourse. In 2021, the airport started a planned $85 million expansion that will accommodate larger aircrafts, too.
Washington Dulles International Airport in Dulles, Virginia, came in third place. According to the U.S. Department of Transportation, Dulles has the most international passenger traffic of any airport in the Mid-Atlantic outside of those within New York City.