- Spirit Airlines DEN Terminal +1–888–839–0502
- Hi! If you're traveling through Spirit Airlines DEN Terminal expect a cost-effective yet speedy experience. My family and I just flew out of Denver, and even though the terminal was crowded, check-in went smoothly. The self-service stations shortened the wait, and the employees were there to help with any questions. Security did take a little time, but that's to be expected at a big airport. Boarding was efficient, and gate agents were courteous. Although Spirit is low-frills, our flight departed on time, and we had no issues. If you are willing to do your homework, Spirit Airlines is a good choice!