What to know
DEN official airline directory lists Frontier at DEN. Terminal operations can move during construction, irregular operations, or seasonal schedule changes.
Airport layout
DEN has one landside building, Jeppesen Terminal, and three airside concourses: A, B and C. The underground train connects the terminal with every concourse.
Getting to the gate
The useful distinction at DEN is the airline's ticket-counter location and departure concourse, not a separate numbered terminal.
Connections
Concourse A is also walkable from the terminal bridge; B and C require the train.
