Allegiant Air has built its business around a simple formula: connect leisure travelers with destinations that larger airlines may overlook, using relatively low fares and a point-to-point network. That strategy has produced a large domestic operation, but not every route has generated enough demand to justify continued service. New U.S. Department of Transportation data covering July 2025 through June 2026 reveal 11 Allegiant routes with load factors below 54%, including one that filled just 36.4% of its available seats.
The numbers stand out because Allegiant’s overall network performed considerably better during the same period. The ultra-low-cost carrier recorded an average 84.3% load factor, meaning the weakest routes were operating dramatically below the level achieved across its system. The average one-way base fare was about $60, excluding taxes and ancillary revenue, showing how Allegiant combines low fares with high seat utilization to make its model work.
A low load factor does not automatically mean a route is commercially disastrous. Airlines consider fares, ancillary revenue, aircraft utilization, operating costs, seasonality, and the strategic purpose of a market. However, Allegiant’s network is almost entirely point-to-point, so there is generally no connecting traffic feeding other services. When a route repeatedly struggles to attract passengers, the weakness can therefore become especially difficult to overlook.
Allegiant Air’s Emptiest Routes Include Several Discontinued Markets
The weakest route in the data was Orlando Sanford to Columbia, South Carolina, which recorded a load factor of only 36.4%. The service carried 11,676 round-trip passengers during the 12-month period. Allegiant had originally launched the market in 2009 and later brought it back for a limited period from May 2025 through April 2026. The airline subsequently pulled the route again.
Second was Punta Gorda to New Orleans, with a 44.1% load factor and 7,458 round-trip passengers. Allegiant operated the route from November 2025 through May 2026 before cutting it. The result illustrates how quickly a leisure-focused market can disappear when passenger demand fails to develop at the required level.
Several other routes produced similarly weak results. Knoxville to South Bend recorded a 46.2% load factor, while Gulf Shores to Houston Hobby reached 46.4%. Denver to Idaho Falls followed at 46.5%. All three were subsequently discontinued, although their operating histories and market characteristics were very different.
Knoxville to South Bend is particularly striking because it was both short and short-lived. The route covered only about 370 nautical miles, or 685 kilometers, each way. That was less than half Allegiant’s average stage length of 779 nautical miles during the same 12-month period. Service existed for roughly 13 months, and nine of those months produced load factors below 50%.
Some Weak Allegiant Routes Were Still Operating
Not every route near the bottom of the table had already disappeared. Tampa St. Pete to Huntsville recorded a 47.7% load factor, with 4,322 round-trip passengers. Flights began in March 2026, meaning the available data captured only a relatively short portion of its operating history. Unlike several routes above it, the service was still being operated.
That distinction matters because a new route can take time to establish itself. Airlines may initially offer promotional fares, adjust schedules, change frequencies, or wait for travelers to become familiar with a new nonstop option. A low initial load factor therefore provides a snapshot rather than a definitive verdict on a route’s long-term potential.
Washington Dulles to Knoxville was another active market with a surprisingly low result. Its load factor stood at 53.7%, despite carrying 17,879 round-trip passengers. The route launched in May 2025 and remained in service, making it one of the more interesting examples of Allegiant continuing to operate a market that had not yet reached the carrier’s broader network average.
Newark to Flint Shows How New Nonstop Service Can Change Traffic
Allegiant’s Newark to Flint service provides another useful example. The route operated from June through September 2025 and recorded a 48.7% load factor over the relevant period. Before Allegiant entered the market, US DOT data showed that only 340 round-trip passengers traveled between the two airports during the comparable months, with virtually all traveling indirectly.
The arrival of nonstop service dramatically changed the volume. Round-trip traffic increased to 4,172 passengers during the following period, representing a 1,127% year-over-year increase from an extremely small starting point. Allegiant also offered a base fare of only about $49 each way, compared with an average base fare of $240 for the previous connecting journeys.
Yet the route still disappeared after only a few months. That is an important reminder that generating new passengers and sustaining a route are two different challenges. A low fare can stimulate demand, but an airline still needs enough travelers at economically viable yields to keep aircraft assigned to the market.
Allegiant’s Route Strategy Produces Both Growth and Churn
The 11 emptiest routes demonstrate the experimental nature of Allegiant’s network. Markets can be launched because an airline sees an opportunity to stimulate leisure demand, but some will inevitably fall short of expectations. Among the weakest routes, several were cut within months, while others remained active or were scheduled to return.
Las Vegas to Phoenix Mesa, for example, recorded a 52.5% load factor and carried 5,810 round-trip passengers. Allegiant had operated the route since 2011 before suspending it in March 2026, with flights scheduled to return the following March. That suggests a weak period does not necessarily mean a market has been abandoned permanently.
The broader lesson from the DOT figures is that Allegiant’s impressive systemwide load factor can conceal substantial variation at the individual-route level. An airline can maintain strong overall aircraft utilization while constantly adjusting weaker markets. For a carrier built around leisure travel and nonstop city pairs, that flexibility is central to the business model.
At the bottom of the table, the 36.4% load factor on Orlando Sanford-Columbia is the clearest example of how far an individual route can fall below the network average. But the other 10 markets show that there is no single explanation for weak performance. New routes, short routes, seasonal services, and markets with limited underlying demand can all produce disappointing results. Allegiant’s response—cutting, suspending, or continuing individual routes—reveals how aggressively the airline manages that risk.
