Spirit Airlines offers a Group Travel program that provides one guaranteed price for all customers travelling with the group, and group rates quoted are guaranteed for 24 hours. It's important to note that Group travel is not discounted travel. The benefits of this program include confirmed seats of 10 or more without full payment for travel 60 days out. Spirit Airlines Group Travel offers a Group Travel program that provides one guaranteed price for all customers travelling with the group, and group rates quoted are guaranteed for 24 hours.