Spirit Airlines Austin-Bergstrom International Airport provides standard cabin and baggage services. Basic seating is available to passengers, although they may choose to upgrade for greater comfort or legroom. There aren’t many in-flight amenities, although you can buy drinks and snacks. Both checked and carry-on baggage are subject to Spirit’s strict size and weight restrictions; extra costs will apply according to the kind and weight of the luggage. To check their bags, travelers can use the airline counters or the terminal’s self-service kiosks.