Which airlines will take control of the takeoff and landing slots at LaGuardia that were held by Spirit Airlines prior to their May 2026 bankruptcy?

TL;DR

JetBlue is the forecast winner at 98%. Frontier is the only serious fallback at 2% because court papers name it the alternate bidder (Bloomberg Law). Every other option is below 1%.

Context

Spirit auctioned one block of 22 individual LaGuardia operating authorizations—12 departures and 10 arrivals, not 22 complete slot pairs. Reuters reported on July 20 that JetBlue won at $58.5 million and Frontier placed second at $57.5 million; Frontier was named the backup. Judge Sean H. Lane approved the JetBlue sale on July 22, 2026 (Reuters; Bloomberg Law). (investing.com)

Court approval is not the last step. The FAA's LaGuardia order requires written confirmation before a trade or lease becomes effective, while the Port Authority controls the terminal and gate lease. The Port Authority first demanded that a buyer address Spirit's Marine Air Terminal lease and defaults, then said after the auction that it looked forward to working with JetBlue (FAA order; Port Authority court filing; Bloomberg Law). (regulations.justia.com)

Evidence

The closest direct precedent is ATA's 2008 liquidation. Southwest bid $7.5 million for 14 ATA slots on November 19, 2008, through bankruptcy and began LaGuardia service on June 28, 2009 (Southwest bid notice; service launch). Two broader LaGuardia reallocations also completed after regulators fixed the process: JetBlue and WestJet each acquired 16 divested slots after the 2011 Delta–US Airways swap, and the 2013 American–US Airways settlement required 34 LaGuardia slots to be sold to low-cost carriers (DOT; DOJ). This is a tiny, selected reference class, but all three processes ended with the announced recipients taking the slots. (southwestairlinesinvestorrelations.com)

The regulatory signal favors JetBlue or Frontier, not a legacy carrier. FAA Administrator Bryan Bedford said on May 28 that the slots should go to a low-fare airline or be retired (Bloomberg Law). The FAA's administrative Summer 2025 holder table covers 12 carriers and 1,141 non-FAA-held authorizations. It was published December 5, 2025 and lists JetBlue with 31 and Spirit with 22; a full transfer would put JetBlue at 53, or 4.6% (FAA holder totals). I read that modest share, the low-fare policy, and the Port Authority's supportive post-auction statement as strong evidence against an antitrust block or terminal veto. (news.bloomberglaw.com)

JetBlue's balance sheet is the main reason not to put the forecast above 99%. Its April 28 filing, covering March 31, reported $2.4 billion of unrestricted cash, cash equivalents and investments, a $319 million first-quarter net loss, and a $1.4 billion working-capital deficit (SEC filing). S&P cut JetBlue to CCC+ on June 8, and its 2031 bonds fell to about 84 cents on July 23 (Reuters; Bloomberg Law). Even so, the purchase price is only about 2.4% of the March liquidity balance. The stress raises withdrawal and restructuring risk. It does not make a $58.5 million payment hard to fund. (sec.gov)

My scenario tree assigns a 2% chance that JetBlue obtains no qualifying pair. About 85% of those paths go to Frontier because it is already the alternate bidder and had agreed in 2023 to acquire the same 22 slots and six Marine Air Terminal gates if the JetBlue–Spirit merger closed (JetBlue and Frontier). A small overlapping branch has JetBlue close while Frontier or another airline receives at least one pair through a regulatory condition. That is why Frontier's YES probability can be slightly larger than the probability of outright JetBlue failure, and why the option probabilities need not sum to 100%. (investor.jetblue.com)

What's non-obvious

Coverage often mixes slot-holder totals with operator totals. Holder data are the better concentration baseline here because a carrier can operate authorizations leased from another holder; using operator totals can make JetBlue, Frontier, Delta or United look larger or smaller than their legal portfolio (FAA holder totals; FAA operator totals). On the holder basis, JetBlue remains a small LaGuardia participant after the deal.

The 22-versus-22-pairs wording error does not change the main forecast. A buyer of the full block receives 12 departure and 10 arrival authorizations, so JetBlue or Frontier would control multiple usable pairs. The ambiguity matters only in the remote split-allocation tail, where one airline might receive unmatched individual authorizations and fail the question's one-pair threshold (Reuters). (investing.com)

Limitations

I found no public FAA written confirmation or transaction-closing announcement by the July 26, 2026 cutoff. JetBlue's latest filed liquidity snapshot is from March 31, while the bond-price signal is current but noisy; second-quarter results were not yet available at the cutoff (SEC filing; Bloomberg Law). The historical reference class has only three close analogues and cannot support precise statistical failure rates. The remaining percentages therefore come from a transaction-specific scenario model, with a small allowance for retirement, litigation, or annulment before May 2, 2028. (sec.gov)