Spirit Battles United–JetBlue Alliance Over Market Power Concerns

On June 24, 2025, Spirit Airlines urged the US Department of Transportation (DOT) to block or extend the review of the new “Blue Sky” partnership between United Airlines and JetBlue.

According to the deal, from 2027, United will gain access to several JetBlue slots at New York's JFK and coordinated flight timing at Newark.

Spirit Airlines argues the partnership is anticompetitive, boosting United's access at key hubs and risking the independence of JetBlue and other low-cost carriers. Spirit warns it may pressure smaller carriers like itself into similar partnerships, further consolidating industry power among legacy airlines.

On July 3, United Airlines and JetBlue urged the DOT to dismiss Spirit’s complaint. They emphasized that both will remain independent competitors, managing their route networks and fare structures. Moreover, JetBlue has endured significant losses post-pandemic, and the Blue Sky alliance represents a survival and growth strategy for the airline.

United and JetBlue want an expedited dismissal, while Spirit requests a 60-day extension and a more in-depth review, calling for public comment. Regulators are still evaluating all filings.

Cover photos by David Syphers and Sachin Amjhad on Unsplash