Google's $10 million purchase of Spirit Airlines' internal data cleared one of its last major hurdles after aviation unions withdrew their objections and accepted a privacy deal covering former employees' records.

The Association of Flight Attendants said Tuesday that it and other unions had reached an agreement with Google to protect the personal data of former Spirit staff. The union called the agreement "an historic win for worker privacy protections."

What does the deal actually cover?

Spirit ceased operations on May 2, 2026, and its assets went to auction. Google won the bidding in August, agreeing to pay $10 million for a trove that includes 500 million Microsoft Teams chats, 100 million emails, and other internal documents.

Google has said the data will help improve its products and AI models. For practitioners, the purchase signals how large technology firms now value ordinary corporate communications — meeting transcripts, chat logs, email archives — as raw material for model training.

The sale stalled in bankruptcy court over privacy concerns, particularly the staff and customer details Spirit held at the time of its collapse.

What changed in court?

Aviation unions and public-interest groups withdrew their objections Monday night after striking the deal with Google on employee data. Under the agreement, Google will exclude:

• Employees' medical and disability history
• Drug or alcohol testing records
• Payroll records
• Additional sensitive categories the AFA did not specify

The union also won a more rigorous de-identification process than previously planned. Google is prohibited from attempting to reidentify the data.

The clearance follows a separate intervention last month, when 121 members of Congress, led by Sen. Elizabeth Warren, raised concerns about the transaction. A court-appointed privacy ombudsman had already recommended approval after personal information on 97 million Spirit customers was carved out of the sale.

What did the union say?

Sara Nelson, international president of the AFA-CWA, framed the outcome as a template for future fights over workplace data.

"Worker data privacy in the age of AI has become a whole new worker's rights issue," Nelson said. "Without our union, there would have been no one to speak for workers in this fire sale of their private information. We fought and we won brand new protections."

She added: "Now we will take this issue to all of our employers to secure contractual protections, and demand lawmakers protect workers everywhere through federal and state law."

What has Google said?

Google did not immediately respond to a request for comment. Last month, the company said it was "not looking to buy any personal information from Spirit," Reuters reported.

"The information will either be completely excluded or will be de-identified by an independent third party before Google receives any data," the company said at the time.

Why does this matter beyond bankruptcy court?

The transaction is roughly the price of a single widebody aircraft seat retrofit — $10 million for the digital exhaust of an airline that carried millions of passengers — and that asymmetry is the story. When a company fails, its communication archives become auctionable assets, and the employees who wrote those messages hold no individual claim to them.

The unions' remedy was contractual: exclusions, third-party de-identification, and a ban on reidentification attempts. Nelson's pledge to push the same protections into collective bargaining agreements and legislation indicates the Spirit precedent will not stay confined to one bankruptcy.