JetBlue Airways and Spirit Airlines are ending their proposed $3.8 billion merger weeks after a federal judge blocked the the deal, saying it would hurt consumers who depend on Spirit’s lower fares.

JetBlue said Monday that even though both companies still believe in the deal, they were unlikely to meet the closing conditions required in the agreement before a July 24 deadline.

JetBlue’s new CEO, Joanna Geraghty, called the merger “a bold and courageous plan intended to shake up the industry status quo” and speed JetBlue’s growth.

“However, with the ruling from the federal court and the Department of Justice’s continued opposition, the probability of getting the green light to move forward with the merger anytime soon is extremely low,” Geraghty said in a memo to employees of New York airline. She said uncertainty over the merger’s fate was distracting the airline from its effort to return to profitability.

JetBlue will pay Spirit a $69 million termination fee.