My name is Alex and I'm a travel advisor. You can check out my travel articles and blogs to get an idea of the various locations in the US. Spirit Airlines Manage Booking feature allows passengers to make changes to their existing reservations, including flight times, dates, and even seats. This feature is accessible through Spirit's website or mobile app and is available to all passengers who have made a reservation with the airline. Additionally, passengers can use the Manage Booking feature to add special services, such as baggage or seat selection, and to review their itinerary or purchase travel insurance. This feature makes it easy for Spirit Airlines passengers to update their travel plans and ensure a smooth and hassle-free travel experience.