Allegiant Travel Company is a leisure travel company. The Company is focused on providing travel services and products to residents of under-served cities in the United States. The Company's products and services include scheduled service air transportation, air-related ancillary products and services, third-party ancillary products and services, fixed fee contract air transportation and other revenue. Scheduled service air transportation includes scheduled air transportation on limited-frequency non-stop flights between under-served cities and leisure destinations. The Company provides unbundled air-related services and products in conjunction with air transportation for an additional cost to customers. Third-party ancillary products and services comprise offering third-party travel products. Fixed fee contract air transportation includes providing air transportation through fixed fee agreements and charter service on a year-round and ad-hoc basis.