Allegiant Air and Sun Country Airlines have officially merged to create a larger leisure-focused carrier in the United States. Although the merger closed recently, both airlines will continue operating under their existing brands for the time being, with loyalty programs Allegiant Allways Rewards and Sun Country Rewards remaining active separately until their integration, expected within the next 18 to 24 months.

Following the merger, the combined fleet now totals 195 aircraft, serving nearly 175 cities across the country. This expansion positions Allegiant as the eighth-largest U.S. airline by available seats, according to aviation data from Cirium, increasing affordable travel options for communities traditionally served by both airlines.

Leadership emphasized that the merger will broaden destination reach and enhance convenience for travelers while preserving the low-cost leisure market focus. Customers should not expect immediate operational or service changes, as integration will proceed gradually to maintain continuity.

The deal reflects broader consolidation trends in the airline industry, with other major carriers exploring potential mergers to strengthen competitive positioning. Recent merger discussions involving United Airlines, American Airlines, and JetBlue Airways highlight ongoing interest in industry reshaping, although recent setbacks like the collapse of another airline deal have tempered some activity.

Transportation officials have acknowledged greater room for consolidation within the sector, suggesting future mergers could occur within the near term. Against this backdrop, Allegiant and Sun Country’s merger stands as a notable development in the evolving U.S. aviation landscape.