United Airlines is restricting personal AI agents from booking and managing trips. United said in a Nov. 11 news release that 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."

What changed

United said the work "includes updates to our booking, ticketing and distribution policies." The statement is about unauthorized third-party personal AI agents or assistants that act for a traveler.

The restriction applies in two places: United's own digital platforms, and the travel agencies and aggregators that sell its fares.

The release says United will also update its Digital Trust Center so customers can better understand the restrictions, and will keep evaluating how AI assistants interact with its services.

What it means for travelers

United's statement is about AI agents or assistants acting for a traveler, such as one you hand your account to so it can book for you. It does not mention ordinary booking by a person.

United warned that sharing account credentials with such tools "can expose sensitive information, and actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles."

United also warned of possible violations of federal aviation rules, such as a requirement that a human complete check-in.

What to do:

  • Do not give an AI assistant your MileagePlus login or password.
  • If you already did, change the password and review recent bookings and miles activity.
  • Keep using an AI tool to compare options if you like, then book yourself.

For how password handling for agents is changing, see our story on 1Password's tools for agent logins.

What isn't announced

  • An effective date. Neither report gives one.
  • How United will detect or enforce the restriction.
  • The policy text. We found United's release, not the updated booking, ticketing and distribution policies themselves.
  • Whether any official integration with an AI assistant would be allowed. Nothing we read mentions one for United.

What we checked

We read United's release and two outlet reports on Nov. 12 ET. We looked for the updated policy text and did not find it. We did not test any assistant against United's systems or contact United.

Related: banks, Yelp and Delta blocking third-party AI agents, and 1Password for agents.