The Spirit airlines manage my booking function enables travellers to easily change their itinerary. By inputting their last name and confirmation code, travellers can quickly view their reservations from the airline's website or mobile app. With this application, travellers may make modifications from the comfort of their device, including choosing their seats, checking baggage, updating personal information, and even altering the dates or destinations of their flights. Spirit Airlines' many options and easy-to-use interface make bookings hassle-free, resulting in a more seamless and customised travel experience for customers.