United Airlines is tightening its rules on unauthorised AI agents that search flights, book tickets or manage reservations through its digital systems. The restrictions cover assistants that access United directly, as well as tools that reach its content through travel agencies, booking platforms and aggregators.
United says the policy is intended to protect passenger data and prevent unintended purchases, account changes or use of MileagePlus miles. The airline plans to update its booking, ticketing and distribution policies. It will require permission for AI agents that access its content or carry out transactions through those channels.
Travel Agencies Need Approval for AI Access
Accredited travel agencies will need United’s permission to make its content available to personal AI agents for flight discovery, booking, ticketing or reservation servicing. The approval requirement also covers AI agents that an accredited agency develops and operates itself.
That makes the rule relevant to agencies whose customers never visit United’s website. A corporate traveller, for example, might ask an assistant inside a company booking platform to find a United flight or change an existing reservation. The agency will need to know whether the assistant is authorised to access the airline’s content and perform the requested action.
United says violations could lead to sanctions, including the loss of ticketing authority. For an agency, that can affect its ability to issue United tickets. The implications extend to the technology suppliers behind those services, particularly when a booking platform combines flight search, ticketing and post-purchase support in the same interface.
MileagePlus and Payments Are Central to the Policy
United has highlighted the risks of sharing account credentials with personal AI assistants. An assistant with account access may be able to retrieve private booking information, change a reservation or make a purchase. If it can access MileagePlus, it may also be able to use miles in ways the member did not intend.
The financial implications can become clear when a traveller asks a tool to find a cheaper itinerary. The instruction may sound simple, but changing the ticket could involve a fare difference, a different departure time or the use of miles. A family travelling together could also find that a proposed change affects only part of the group. United’s policy puts the focus on who authorises those actions and which tools the airline permits to carry them out.
Check-In Raises Questions About Passenger Acknowledgement
United also pointed to passenger acknowledgements required during check-in. One example concerns prohibited materials in checked baggage. When the check-in process asks for confirmation, the traveller needs to verify the information about the bag.
The example illustrates why some steps need a separate decision even after an assistant has helped arrange the trip. A tool may be able to prepare an itinerary or collect booking details. Confirming what a passenger packed involves information that only the traveller can reliably supply. For agencies designing automated services, the point at which a passenger must take over can be as important as the steps the tool can complete.
What Travellers Can Still Do
The restrictions concern unauthorised access to United’s content and systems. Travellers can still use AI to brainstorm destinations, organise sightseeing or draft an itinerary. For actions involving a United account or reservation, the airline points customers to its website and mobile app.
Those channels allow travellers to book, select seats and review options when weather disrupts a trip. Passengers using an agency can ask which channel to use if they need to make a change after booking. That question matters particularly when the traveller needs help outside normal business hours or has an onward connection to protect.
United plans to update its Digital Trust Centre with information about the policy, account protection and what customers can do if an AI agent takes an unintended action. For MileagePlus members and passengers who store payment details, that guidance will be relevant when deciding what information to share with a third-party tool.
For travel sellers, the approval requirement makes it important to know which systems handle each stage of a booking. For passengers, the immediate question is whether an assistant can act on a specific reservation. United’s rules tie that ability to airline permission, with the traveller still responsible for confirmations that require their direct acknowledgement.
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