Allegiant Air will add five new routes this fall to Florida, continuing its strategy of connecting smaller U.S. cities with popular vacation destinations.

One of the new routes—Belleville, Illinois to St. Petersburg-Clearwater International Airport—will operate on Wednesdays and Saturdays, two days that until recently Allegiant had scheduled relatively few flights. “We are seeing more opportunity in Florida on Wednesdays and Saturdays, and we are playing with the schedule a little more,” Allegiant spokeswoman Jessica Wheeler said. “You are still going to see more flights on Thursday and Friday than Wednesday or Saturday, but those are the margins of the utilization that we have been pushing to with the Airbus fleet.” She said Florida travelers tend to be more flexible about departure dates than other Allegiant passengers. 

In addition to the Belleville route, Allegiant will begin flying in November between Bloomington, Illinois and Concord, North Carolina and St. Petersburg. It will also add flights from Peoria, Illinois to Orlando Sanford International Airport and Huntington, West Virginia to Punta Gorda Airport. In Allegiant’s typical model, the flights will operate between two and three times weekly.

Allegiant is slowing adding to its A320 family fleet, with plans to add a single 156-seat A319 by year-end, according to its most recent fleet plan. Next year, it plans to add five A319s and three 177-seat A320s, which would bring its fleet to 78 aircraft. Currently MD-80s make up the majority of the fleet, with 53 in service. In addition to the MD-80s, Allegiant now has an additional six 757s, and 10 A320-family aircraft. 

Asked how Allegiant chose the Florida cities, Wheeler called it, “a little bit art, and a little bit science,” with the airline combining its own data with information from tourist boards and airports to determine the strength of each market. But she said Allegiant often avoids revenue guarantees from local authorities. “We feel like it inflates the market a little bit,” Wheeler said. “It’s not a true representation of whether or not service is going to be successful. We really want to serve routes that are going to be successful long term because they have natural high demand.”