When Will Allegiant Release September 2024 Flights. Dallas — allegiant airlines (g4) has announced the addition of eight new nonstop routes for the summer and fall. An allegiant plane is seen at fort.

This means that if you are looking to book flights for september 2023, you can expect the schedule to be released sometime between march and april 2023. Starting in spring 2024, the new flights will expand the airline’s network options in 22 cities around the country.