Bangor International Airport is always open.
The TSA Screening Checkpoint opens at 4:00 a.m. daily.
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: The American Airlines counter opens at 3:30 a.m.
Delta Airlines: The Delta counter opens at 4:00 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: Open Wednesday-Sunday, 10:00 a.m. to 5:00 p.m.