As an ultra-low-cost carrier, leisure markets are an important battleground for Allegiant Air. This is evident in its strong presence in Florida, where the Sunshine State is home to the airline’s top three airports by departing flights. The carrier’s growth has continued at pace of late, with 11 new routes launching between February 2026 and February 2027 at 
Fort Lauderdale-Hollywood International Airport (FLL).
According to scheduling data from Cirium, an aviation analytics company, five of them took flight earlier this year, with four more set to follow later this year, plus two more in early 2027. This has seen FLL become Allegiant’s fourth-busiest Florida base by flight traffic, with the facility rising to sixth overall.
Five Additions Came In February
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Allegiant started the year strong, launching five new routes out of Fort Lauderdale in this past February. Their destinations were Albany, Chattanooga, Chicago Rockford, Rochester, and Trenton. Of these, the addition of the route to Chattanooga in particular is said to have been a consequence of the withdrawal of Spirit Airlines, which would later cease flying.
Allegiant faces competition from Southwest and JetBlue on some of these routes, and its hyper-seasonal business model means it does not operate some of them in certain months. For instance, the Rochester flights last operated in May, and won’t restart until October. Likewise, the Chattanooga and Chicago Rockford services are on hold this month. The carrier commented on its network strategy in a statement last month.
“Allegiant’s unique business strategy continues to reshape the US leisure travel industry. Allegiant’s network of all-nonstop flights, serving communities often overlooked by other carriers, has been a key differentiator for the airline.”
Six More To Come
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Alongside the existing five additions, Allegiant will add another six cities to its network from Fort Lauderdale in the coming months. Four will take flight next month, with their destinations being Boston, Kansas City, Omaha, and Pittsburgh . Of these, all but Omaha are said to have been added to fill the gaps left by Spirit’s demise.
With Florida being a popular winter sun destination, these flights will once again primarily serve seasonal demand from passengers flying in from further north. All are set to run from October to May, with the Boeing 737 MAX 8-200 as the dominant aircraft type. These jets will serve only three of the four routes, with Pittsburgh’s capacity split between the 737 and the Airbus A320.
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Allegiant’s final two Fort Lauderdale additions are set to take to the skies for the first time in February 2027. Their destinations are Portsmouth and Providence, and these routes reflect the hyper-seasonal side of the carrier’s operating model. Indeed, each will be served just twice in February and April by the 737 MAX 8-200, with Portsmouth also getting one rotation in May 2027.
Related
The US carrier has made some changes to its pilot pay structure.
Fort Lauderdale Is A Key Base For The Airline
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As noted, Florida is a key market for Allegiant, with its top three airports by weekly departures (using mid-October as an example) all in the Sunshine State. As detailed below, the remainder of the top five consists of airports serving desert-based leisure destinations further to the west, namely 
Harry Reid International Airport (LAS) and Mesa Gateway Airport (AZA).
Allegiant’s Top Bases By Weekly Departures (Mid-October)
Orlando Sanford
226 departures
St. Petersburg Clearwater
174 departures
Punta Gorda
146 departures
Las Vegas
133 departures
Phoenix-Mesa
127 departures
Fort Lauderdale just misses out on the top five, ranking sixth with 104 weekly departures in mid-October. While this figure falls well short of its three busiest Florida bases, it still represents a 55% year-on-year increase. The rest of the top 10 includes Knoxville with 83 flights; Destin-Fort Walton Beach with 78; Asheville with 71; and Cincinnati with 67.