At 20 airports in the United States, security screening is done by private companies — and their checkpoints aren’t seeing long lines.

The airports with private security, several of which are located in Montana, are:

• Atlantic City International Airport in New Jersey
• Charles M. Schulz–Sonoma County Airport in California
• Dawson Community Airport in Montana
• Great Falls International Airport in Montana
• Glacier Park International Airport in Montana
• Greater Rochester International Airport in New York
• Havre City-County Airport in Montana
• Kansas City International Airport in Missouri
• L. M. Clayton Airport in Montana
• Orlando Sanford International Airport in Florida
• Portsmouth International Airport in New Hampshire
• Punta Gorda Airport in Florida
• Roswell International Air Center in New Mexico
• San Francisco International Airport in California
• Sarasota-Bradenton International Airport in Florida
• Sidney-Richland Municipal Airport in Montana
• Sioux Falls Regional Airport in South Dakota
• Tupelo Regional Airport in Mississippi
• Wokal Field/Glasgow International Airport in Montana
• Yellowstone Airport in Montana