A total of 21.3 million seats will be removed from the U.S. aviation market following Spirit Airlines’ announcement to end operations on Saturday, May 2, creating a significant impact on air connectivity across the United States—particularly within the low-cost segment and key domestic routes—according to an analysis by Data Appeal and Mabrian (Almawave-Almaviva Group).
The vast majority—91.3% of this capacity—corresponds to domestic routes, while the remaining seats were allocated to international services connecting the U.S. mainly with Mexico, Central America, and the Caribbean.
Based on an analysis of scheduled capacity between May and December 2026, updated by April 28th 2026, the U.S. low-cost network is expected to be “substantially affected,” according to Maria Pradissitto, Market Manager at Data Appeal North America.
Sizing the Impact: 4.5% of U.S. Domestic Low-Cost Capacity Lost
Ranked ninth in total seat capacity in the U.S. market for 2026, Spirit Airlines played a key role in the country’s aviation ecosystem, particularly within the low-cost carrier segment. Data shows the airline accounted for 1.4% of total U.S. air connectivity scheduled between May and December 2026.
Additionally, more than 19.46 million domestic seats were scheduled to be operated by Spirit Airlines during this period, also representing 1.4% of total U.S. domestic connectivity (out of 1.5677 billion seats) and 4.5% of U.S. domestic low-cost capacity.
From coast to coast, the U.S. connectivity network will experience a substantial reduction in available seats and route coverage. The disruption affects major hubs, key domestic airports, and popular leisure destinations.
A total of 81.2% of the affected seats—equivalent to more than 8 out of every 10 lost seats—are concentrated across just 15 major airports. These include Fort Lauderdale, Orlando and Miami (FL); Newark and LaGuardia (NY); Detroit (MI); Harry Reid International (Las Vegas, NV); Houston and Dallas-Fort Worth (TX); Atlanta (GA); and Chicago O’Hare (IL), as well as routes serving Charlotte (NC), Los Angeles (CA), Baltimore (MD) and Myrtle Beach (SC).
Spirit Airlines’ withdrawal represents a “significant disruption in an already strained connectivity market, driven by rising operational costs—particularly fuel—and occurring just as the summer travel season begins,” said a Data Appeal expert. “This will reduce competition in the low-cost segment and likely lead to higher fares on affected routes.” As Pradissitto noted: “While other carriers may absorb part of the demand, affordability and accessibility will be impacted in the short to medium term, particularly for price-sensitive travelers.”