Bangor International Airport is always open.
The TSA Screening Checkpoint is open at 3:45 a.m. Monday-Friday and at 4:00 a.m. on Saturday & Sunday.
Allegiant Air: The Allegiant counter is open for check-in 2 hours prior to each flight. The counter is also open 30 minutes after each departure for ticket purchases.
American Airlines: 3:30 a.m.
Delta Airlines: The Delta counter opens at 3:30 a.m.
United Airlines: The United counter is open for check-in 2 hours prior to each flight.
The Grasshopper Shop: Open 9:00 a.m. to 5:00 p.m. daily.
The Highlands Cafe: Open 9:00 a.m. to 5:00 p.m. daily.
The Refueler Pub: Due to current staffing issues, the Pub is only open on occasion.