United bans AI agents from booking, even with your OK

United just told your AI agent it can look but it can't buy.

United Airlines revised its contract of carriage on Nov. 11 to list "the use of AI Agents to make, modify or service a Ticket, and/or to purchase any service or product" as a prohibited practice, according to View from the Wing, which quotes the new Rule 6.J.6. United's own contract page did not load for TopFive.

The rule covers you even when you said yes

The ban holds even when a human supervises or approves what the agent does, View from the Wing reports. It also reaches agents working through travel agencies and other intermediaries, not only United.com. A separate rule lets United cancel reservations an agent made, changed or serviced.

United's public reasons are security and rules. The airline said "sharing account credentials with personal, third-party, AI assistants can expose sensitive information" and that "actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles," CBS News reported. United also said, per CBS, that an agent checking a traveler in could break federal rules that require passengers to confirm in person what is in their luggage.

CEO Scott Kirby offered a plainer reason at an event in Chicago. "To be honest, I don't want to create another middleman," he said, per View from the Wing.

United says its systems can tell where a booking came from, and that agent bookings are still rare, the same report says.

The middleman line is the real news

The pitch for an AI agent is simple: tell it to book the trip, and it books the trip. Agentic commerce only works if the store lets the shopper in.

United just said no, in a contract, with a cancellation clause attached.

Yes, it's one airline. But Kirby said the quiet part out loud. An agent that compares every fare and books the cheapest is a middleman, and United would rather own the customer itself.

Expect other sellers with loyalty programs and thin margins to read this closely.

What you can still do

Research is still allowed. Agents can still show United flights and prices, View from the Wing reports, citing the Wall Street Journal. Aviation analyst Henry Harteveldt of Atmosphere Research Group told CBS that United fares stay bookable through Kayak, Hopper and Google Flights.

United drew its line between finding a fare and buying it.

If you build a travel agent, route United purchases back to a human on United's own site, and say so in the interface. A canceled holiday ticket is a support nightmare you do not want to own.

If you use a browser agent for errands, keep it away from your MileagePlus login. United has now told you, in writing, what it can do to bookings made that way.

Not every airline is drawing the same line. Southwest has made its flight inventory viewable to ChatGPT users, CBS reports.

Watch the copycats, not the complaints

Harteveldt put the economics simply: "Flight searches cost airlines money," he told CBS.

The next signal is whether Delta and American follow, and whether a big agent maker answers with a booking deal instead of a workaround. If they do, agent checkout has a far bigger problem than one airline.

Watch the contracts of carriage. Then watch your agent's checkout button.