Up to $25 Off Allegiant Flights for National Cheap Flight Day

Allegiant Air is offering up to $25 off on round trip or multi-segment flights with the promo code SAVETODAY26. One-way flights can be discounted by $12.50. To redeem, purchase on allegiantair.com before August 24, 2026, and enter the code at checkout. The discount applies to select travel dates before December 20, 2026, with some blackout dates. This deal is a notable discount for Allegiant's promotional sales, especially with the potential savings on larger itineraries or last-minute bookings. The limit of 5 uses per customer and the promotional deadline make it a good value for flexible travelers looking for budget flight options.