Frontier Airlines Unveils “Friends Fly Free” Promotion for September Travel

Frontier Airlines is giving travelers another reason to book their next getaway this fall with the launch of its limited-time “Friends Fly Free” promotion. The deal, available exclusively to members of the airline’s Discount Den program, lets customers bring a companion along at no additional airfare cost on select flights in September.

To qualify, passengers must book their tickets on August 18 or 19, and the travel period is set between September 2 and September 30, 2025. While taxes, fees, and additional charges still apply, the base fare for the companion is waived, creating significant savings for travelers who enjoy flying in pairs.

Frontier emphasized that the offer is designed to make fall trips more affordable, whether for quick weekend getaways, family visits, or even last-minute adventures. As one of the largest ultra-low-cost carriers in the United States, Frontier has built its brand around budget-friendly fares, and promotions like this underline the airline’s strategy of rewarding loyal customers while attracting new ones to its membership program.

The Discount Den membership, which comes with an annual fee, regularly provides access to lower fares and exclusive promotions. This new “Friends Fly Free” deal adds an extra layer of value for those looking to maximize their travel budget.

Seats for the promotion are limited and available only on select routes. Frontier advises travelers to act quickly, as flights that qualify under the offer are expected to sell out fast.

For anyone planning a September escape, this could be the perfect opportunity to explore a new destination — and bring a friend along without doubling the airfare.