United Airlines says it will block personal AI assistants from booking and managing trips for its customers. The airline announced the restriction on Wednesday, Nov. 11, saying that handing account logins to a third-party AI tool can expose personal data and lead to purchases, changes or MileagePlus redemptions the traveler never meant to make.
The block covers United's own app and website, and the airline says it will also cut off those tools indirectly, through the travel agencies and booking sites that sell its flights. According to United's announcement, the change comes with updates to its booking, ticketing and distribution policies. The airline did not give a start date or name any specific AI product.
What United says it will block
The target is what United calls "unauthorized, third-party personal AI agents or assistants." These are tools that sign in to a traveler's account and act for them, searching fares, buying tickets or changing a reservation.
United gave two reasons. One is account security. If you share your password with an AI service, United says, that service can see sensitive information, and an automated mistake can spend money or miles. The other is regulation. United says some steps in a booking need a human, and that AI tools acting alone could put the airline out of line with federal aviation and transportation rules.
United said banks and retailers have taken similar steps against AI agents, without naming them.
The check-in rule United points to
The airline's example is check-in. A federal hazardous materials rule, 49 CFR 175.25, requires airlines to show passengers which dangerous items they cannot bring on a plane, both when they buy a ticket and when they check in. When a passenger completes either step alone, with no airline employee involved, the rule says the passenger must acknowledge seeing that information.
An AI agent that checks someone in would be clicking through that acknowledgment on the traveler's behalf. United says that is the kind of action that has to come from a person.
What it means if you use an AI assistant
If an AI tool currently books or manages your United trips, expect it to stop working with United at some point. United has not said when. Buying a ticket, picking seats or rebooking a delayed flight in United's app or on its website still works the usual way, and so does booking through a human travel agent.
United says it will update its online Digital Trust Center to explain the new restrictions, how to protect an account and what to do if an AI agent has already made a change the traveler did not want. If you have given an AI service your MileagePlus login, check your recent account activity and your stored payment cards.
