Core Points - Frontier Airlines is launching a limited-time sale with roundtrip fares as low as $38 for various destinations in the U.S., Caribbean, and Latin America, valid for booking until August 21, 2025 [1][2] - The airline is enhancing its loyalty program, FRONTIER Miles, allowing members to earn 3x miles on eligible flights booked by August 26, 2025, for travel completed by November 19, 2025 [2][5] - Frontier Airlines is introducing significant changes to its product offerings, including UpFront Plus seating and plans for First Class seating debuting in late 2025 [3] Promotional Offer Details - Tickets must be purchased by 11:59 pm EDT on August 21, 2025, for travel from September 2 to September 30, 2025, with a 14-day advance purchase requirement [4] - Sale fares are valid for nonstop travel on select days, and round trip purchase is required [4] Loyalty Program Enhancements - FRONTIER Miles members can earn triple miles on eligible flights booked directly through FlyFrontier.com, with specific conditions for eligibility [5] - The loyalty program allows for family pooling of miles, making it easier for families to enjoy rewards together [2] Company Overview - Frontier Airlines operates the largest and youngest A320neo family fleet in the U.S. and is recognized for its commitment to fuel efficiency [6] - The airline is based in Denver, Colorado, and is a subsidiary of Frontier Group Holdings, Inc. [6]