A round-trip flight from Orlando to Chicago cost as little as $120 on Spirit Airlines last spring. Today, with Spirit gone and no ultra-low-cost carrier left on the route, the cheapest comparable fare on legacy and mid-tier airlines routinely tops $250. “I used to fly Spirit twice a month to see my parents in Fort Lauderdale,” said Maria Gonzalez, a Chicago-based freelance graphic designer who now drives or takes the bus. “The cheapest flight I can find is three times what I paid before. It has completely changed how often I can visit family.” Multiply that dynamic across dozens of city pairs, and the national numbers start to make sense.
Domestic and international airline fares jumped 20.7% over the 12 months ending in April 2026, according to the Consumer Price Index report the Bureau of Labor Statistics published on May 12, 2026. A review of every 12-month change in the BLS airline fares series, which dates to 1989 and is accessible through the agency’s historical data portal, shows no prior period with a larger increase. The BLS did not label the figure as a record in its summary release, but the data speak plainly: nothing in nearly four decades of tracking comes close.
For context, the same CPI report pegged overall consumer price growth at roughly 2.3% during the same window. Airfare inflation outpaced the broader economy by nearly ten to one.
How the BLS measures what flyers actually pay
The airline fares index is not built from advertised prices or fare-search screenshots. According to the BLS methodology factsheet, the index draws on U.S. Department of Transportation ticket data capturing what passengers actually paid for economy-class seats on scheduled carriers, including taxes and mandatory surcharges. Routes and carriers are sampled on a rotating basis and weighted by passenger volume, so heavily traveled city pairs drive the index more than niche markets.
That design matters. A 20.7% increase across a passenger-weighted national sample is not a quirk of one corridor or one carrier’s pricing decision. It reflects a broad, measurable shift in what Americans are spending to fly.
Spirit’s collapse and the pricing gap it left behind
Spirit Airlines ceased all operations in late 2025 after its financial restructuring failed and a federal rescue effort collapsed, as reported by the Associated Press. The carrier had operated under the Spirit name since 1992 and, at its peak, served more than 90 destinations across the United States, Latin America, and the Caribbean, a figure the airline disclosed in its annual 10-K filings with the Securities and Exchange Commission. Many were mid-size cities where Spirit was the only ultra-low-cost option. Its shutdown stranded thousands of passengers and triggered a drawn-out refund process that, for some ticket holders, stretched into early 2026.
The competitive fallout follows a pattern economists have documented for decades. Research on the so-called “Southwest Effect,” first described in DOT studies during the 1990s and expanded by economists Steven Morrison and Clifford Winston, has consistently found that the presence of even one low-cost carrier on a route can push average fares down by 10% to 20%. Remove that carrier, and prices tend to climb, sometimes within weeks.
Travelers who once booked Spirit’s $50 to $80 one-way tickets between cities like Orlando, Las Vegas, Fort Lauderdale, and Los Angeles now face legacy and mid-tier carriers charging meaningfully more for comparable seats. Frontier Airlines and Allegiant Air still fly some overlapping routes, and newer entrants like Breeze Airways have added service in select markets. But none matches the breadth of Spirit’s former network, and as of late May 2026, none has announced plans to absorb the full scope of its abandoned routes.
Fuel, labor, and demand are compounding the problem
Spirit’s exit is not the only force at work. Jet fuel prices have remained elevated through the first half of 2026, according to the U.S. Energy Information Administration’s weekly petroleum data. Major carriers, including American, United, and Delta, signed new pilot contracts over the past two years that raised labor costs by billions of dollars collectively. And consumer demand for air travel has stayed strong, giving airlines little incentive to discount seats even as costs climb.
The CPI measures aggregate price movement. It does not isolate how much of the 20.7% increase traces to reduced competition versus fuel, labor, or demand. No major airline has filed a public disclosure detailing fare adjustments made specifically because Spirit left the market. Industry analysts widely point to reduced competition as a contributing factor, but without route-level pricing data or a targeted study from the DOT, the precise share remains an open question.
Summer 2026 is shaping up to be the most expensive flying season in years
Peak summer booking season is well underway, and the pricing environment shows no signs of softening. Airlines typically charge their highest fares between Memorial Day and Labor Day, when leisure demand peaks and planes fly near capacity. With one fewer major competitor in the market, the usual seasonal markup lands on top of an already elevated baseline.
Travelers still have levers to pull, though they require more effort than they once did. Booking at least three to six weeks before departure, choosing Tuesday or Wednesday flights, and setting fare alerts through tools like Google Flights or Hopper can trim 10% to 15% off peak pricing on many domestic routes, according to guidance the DOT’s Aviation Consumer Protection office has published. Flexible travelers willing to connect through secondary hubs or fly during off-peak hours can sometimes find deeper discounts. But these tactics chip away at the margins of a problem whose root cause is structural: fewer carriers competing for the same passengers.
Pressure builds on Capitol Hill and at the DOT
Congress and the DOT have faced growing calls to scrutinize airline competition since Spirit’s shutdown. Consumer advocacy groups, including the U.S. Public Interest Research Group, have urged regulators to expedite route-level pricing analyses and consider lowering barriers for new low-cost entrants. As of late May 2026, neither body has announced a formal investigation into post-exit fare increases. However, in a May 2026 letter to DOT Secretary Pete Buttigieg that was posted on the Senate Commerce Committee’s website, Chair Maria Cantwell and ranking member Ted Cruz asked the department to produce a route-level fare impact analysis within 90 days, citing the CPI data and constituent complaints about rising ticket prices on former Spirit routes.
Until that scrutiny produces action, or until competitors expand into the routes Spirit once anchored, the 20.7% surge stands as the starkest measure yet of how consolidation and rising costs are reshaping the price of flying in the United States. For the millions of travelers who relied on Spirit to keep their options affordable, the bill has already arrived.
