United Airlines Bars Third-Party AI Agents From Booking Flights, Citing Data Security and Federal Rules

Since Amazon blocked Meta's Muse agent in September and Southwest launched a ChatGPT plugin in October, big companies have split over whether to let AI agents act for customers. On Wednesday, Nov. 11, United Airlines picked a side.

The carrier said it is taking steps to "restrict access — directly within our digital platforms and indirectly via travel agencies and aggregators — to prohibit use by unauthorized, third-party personal AI agents or assistants." It is updating its booking, ticketing and distribution policies to match.

What United says and why

United's first argument is account security. The airline said sharing credentials with outside AI assistants "can expose sensitive information, and actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles."

The second is regulatory. United said an agent that checks a traveler in could violate federal rules, including the requirement that a human acknowledge that their bags contain no banned items such as explosives. United cited Federal Aviation Administration and Department of Transportation rules. That is the airline's own reading, and no finding from either agency has been announced.

CEO Scott Kirby was blunter about the business side. "To be honest, I don't want to create another middleman," he told the Wall Street Journal and said at an event on Tuesday.

United also pointed to other industries. "Corporate leaders in the banking and retail industries have taken similar actions regarding AI agents," the airline said, and it encouraged others to follow. Engadget lists JPMorgan Chase and Amazon among the companies that block agents.

The commercial angle

Aviation analyst Henry Harteveldt of Atmosphere Research Group told CBS News the policy suggests United wants to keep control of the booking process. "United is saying they don't want to add yet another, and potentially even more powerful, intermediary than they already face in terms of Google search, price-comparison metasearch sites and online travel agencies," he said.

He added that flight searches cost airlines money, and that United "undoubtedly" wants to avoid the expense of a surge in bot searches.

For travelers, Harteveldt said United fares will stay bookable through aggregators including Kayak, Hopper and Google Flights. "Consumers shouldn't find it any more difficult to find good fares on the airline," he said. But blocking the bots, he added, "won't make it any easier to find its fares, either."

A private company deciding who gets to operate inside its own booking system is its call. The security concern is also not invented: Muse has had its own problems since its September launch. A security firm found a glitch that exposed loan applications, bank transaction details and a corporate revenue document, according to the New York Post. Engadget reports Muse also leaked a user's address online.

Competitors went the other way

The industry has not lined up behind United. Southwest made its flights and fares searchable through a ChatGPT plugin in October. Expedia and Booking are working with OpenAI. Walmart has partnered with Meta's Muse, while Amazon blocked it.

That split is the opposing case, and it comes from companies acting on it. Those firms are betting that customers will want to hand routine purchases to an assistant, and that being reachable by agents beats being walled off from them.

How many customers actually do that is an open question. On its third-quarter earnings call, Uber said it handled 320 million trips and deliveries during the week of Halloween. Of those, AI agents accounted for 500 Uber Eats orders and four rides.

Market reaction

Meta shares fell about 2% to roughly $628 on Wednesday, according to the New York Post. Yahoo Finance's afternoon tally showed Meta down 2.61%, United down 1.98% and Amazon down 1.30%. Southwest was off 0.26%. United closed down 1.82%, according to Yahoo Finance.

The New York Post tied Meta's drop to the United news. Investors have also been jumpy about AI-heavy tech stocks in recent weeks, and no source separates the two effects.

Online travel agencies moved the other way. Expedia rose as much as 3.1% and Booking as much as 1.1% during the session, according to Investing.com, as some investors bet established intermediaries benefit.

Pricing scrutiny

United is also under separate pressure over AI. In October the Federal Trade Commission ordered United, Delta, JetBlue and six other major carriers to turn over information on how AI tools influence individual fare pricing and how customer data is used. That inquiry concerns the airlines' own algorithms, not customer-side agents, but it frames how closely regulators are watching AI in ticketing.

What comes next

United has promised an update to its Digital Trust Center explaining what the restrictions mean, how to protect an account and where to get help if an agent takes an unintended action. It has not given a date for enforcement or said how it will identify unauthorized agents, including those routed through third-party travel sites.

Whether the block holds up ahead of holiday travel, and whether Southwest's open-door approach or United's closed one wins customers, will show up in booking data over the coming months.