Is Spirit Airlines operating out of DFW Terminal? Prepare for hassle-free travel! Before boarding, use the internet check-in feature, deposit your bags at Spirit Airlines DFW Terminal, and look at food possibilities. Recall that seat selection and checked baggage are extra on Spirit Airlines. Arrive early, pay attention to gate information, and have fun on your journey. Contact customer support or go to Spirit Airlines' website for additional information. Enjoy your wonderful journey!