BOSTON (AP) -- A lawyer for JetBlue Airways said Tuesday that the biggest U.S. airlines are using their size to cement their dominance in a post-pandemic world, making it critical that a federal judge allow JetBlue to buy Spirit Airlines.
The lawyer, Ryan Shores, said JetBlue needs Spirit to be a "viable challenger" to the four airlines that control most of the domestic market.
"That mandate is even more urgent today," Shores said during closing arguments in a federal court trial over the U.S. Justice Department's lawsuit to block JetBlue's $3.8 billion purchase of Spirit, the nation's biggest low-fare carrier.
A Justice Department lawyer argued that the deal would push fares higher by 30% and leave fewer options for travelers on a budget.
Edward Duffy said if JetBlue absorbs Spirit, it would cut the ultralow-cost carrier share of the market by half -- or 6 million fewer budget flights per year.
Duffy said JetBlue was contradicting itself by arguing that because of its smaller size it needs Spirit to grow fast enough to challenge the bigger airlines, while also claiming that even smaller low-cost rivals such as Frontier Airlines would have no trouble growing fast enough to replace Spirit's presence in the market.
"And most tellingly, they have invited the court to look past the harms caused to passengers who can't pay for JetBlue's richer experience," Duffy said.
There is no jury in the trial, which has stretched over several weeks and included testimony by the CEOs of both airlines.
During closing arguments, the judge peppered JetBlue and Spirit lawyers with questions. Young, who was nominated for the federal bench by President Ronald Reagan in 1984, said, "If the merger goes forward, there is going to be some disruption. That is inevitable."
The judge asked Shores how long it would take for consumers to see benefits that JetBlue promises, such as more competition with the bigger airlines.
The JetBlue lawyer suggested that it could be two or three years, "after the market has arrived at its post-merger competitive equilibrium."
Before the trial started, JetBlue sought to win regulatory approval by agreeing to sell Spirit's gates and takeoff and landing slots at airports in Boston and the New York City area and give up some gates in Fort Lauderdale.
On Tuesday, the judge said he was "having trouble" with a permanent injunction that would block the merger in "a dynamic industry facing unique opportunities and challenges in this post-COVID environment."
The judge asked both sides if there were other divestitures by JetBlue and Spirit that might make the merger acceptable.
Duffy, the Justice Department lawyer, tried to close the door on more divestitures. He said the merger is so anticompetitive that nothing short of a full injunction against the deal would suffice. Shores, the JetBlue lawyer, said any remedies imposed by the court should be narrow.
The government sued to block the deal in March.
The trial represents another test for the Biden administration's fight against consolidation in the airline industry. Earlier this year, the Justice Department won an antitrust lawsuit and broke up a partnership in New York and Boston between JetBlue and American Airlines.
The outcome of the current trial could reshape the field of ultralow-cost airlines, which charge low fares but tack on more fees than the traditional carriers that dominate the U.S. market. If Spirit is acquired by JetBlue, Frontier would become the biggest discount carrier in the U.S., followed by Allegiant Air and new entrants Breeze and Avelo.
JetBlue is the nation's sixth-largest airline by revenue, and it would leapfrog Alaska Airlines into fifth place by buying Spirit.
On Sunday, Alaska announced an acquisition of its own, striking an agreement to buy Hawaiian Airlines for $1.9 billion including debt. The Justice Department has not indicated whether it will challenge that deal.
Previous administrations allowed a series of mergers that consolidated the industry to the point where four carriers -- American, Delta, United and Southwest -- control about 80% of the domestic market. The Justice Department filed lawsuits to extract concessions in some of those earlier mergers, but JetBlue-Spirit is the first one that has gone to trial.
Spirit agreed to merge with Frontier Airlines, which shares its ultralow-cost business model, but JetBlue beat Frontier in a bidding war.
Some Wall Street analysts have recently suggested that JetBlue is paying too much for Spirit, which has struggled to recover from the pandemic, and believe it should renegotiate the deal. JetBlue has given no indication that intends to do so, however.
If it wins in court, JetBlue will nearly double its fleet, repaint Spirit's yellow planes and remove some of the seats to make them less cramped, like JetBlue planes.
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David Koenig contributed from Dallas.