- My encounter with Spirit Airlines DFW Terminal was passable. The check-in procedure was simple, however it took a little while because of the long lines. Although it took longer during peak hours, security was effective. Although there were dining and shopping options in the terminal, there wasn't much sitting in the congested sections. Although a little late, boarding went smoothly. Although there was little legroom and extra luggage costs, the flight itself was reasonably priced. All things considered, Spirit Airlines at DFW provides a reasonably priced travel choice, but be prepared for a straightforward journey with a few small hiccups.