United barred AI agents from booking, changing, or servicing its tickets from 11 November 2026. Software can’t book, change, or service a United ticket for you, even when you supervise it.
The United AI agent ban appears in the airline’s Contract of Carriage and also stops agents buying seats, upgrades, or anything else from United. The rule reaches agents that arrive through travel agencies, so a booking tool bolted onto a third-party site is also covered.
United announced the move in a press release; its newsroom page wouldn’t load for us, so the wording here comes from a mediaroom copy and from OMAAT’s quotes. One Mile at a Time (OMAAT) quotes the contract text. View from the Wing also reported it. PPC Land puts the new language under Rule 6.J.6, next to hidden-city and throwaway ticketing on the list of prohibited practices:
The use of AI Agents to make, modify or service a Ticket, and/or to purchase any service or product.
United Contract of Carriage, Rule 6.J.6
The rule and its reach
OMAAT quotes the contract defining an AI agent as “any software or service” that “takes autonomous or semi-autonomous action”. The definition names three groups. They are AI assistants built into consumer platforms, AI-enabled browsers and standalone agents, and third-party assistants that reach United through a travel agency or other intermediary.
Human oversight doesn’t help. PPC Land reports the rule applies whether or not the passenger “or another individual supervises or approves” what the software does.
PPC Land says a companion change to Rule 5.H lets United cancel “reservations made, modified or serviced by AI Agents” without notice. Law Commentary adds that the prohibited-ticketing rules also allow invalidated tickets and restrictions on future travel.
In its own release, as OMAAT quotes it, United says sharing account credentials with third-party assistants “can expose sensitive information”. It adds that their actions “may result in unintended purchases, account changes, or use of MileagePlus miles.” The airline also says automated actions could breach FAA and DOT rules. Flight check-in requires a human to acknowledge that bags don’t contain banned substances such as explosives.
View from the Wing reports that CEO Scott Kirby gave a blunter reason at an event in Chicago.
To be honest, I don’t want to create another middleman.
Scott Kirby, United Airlines CEO
What still works
Research is fine. View from the Wing says AI research followed by a customer’s own purchase doesn’t break United’s rules. The Wall Street Journal says agents can still show United flights and prices.
Business Traveller quotes Harteveldt (via CBS News) saying Kayak, Hopper, and Google Flights will keep showing United fares, but an unauthorised assistant can’t complete the purchase. The Aviation Hub sums up the line as one between a tool that surfaces prices for a human to review and confirm, and an agent that completes a transaction autonomously.
Business Traveller, citing PhocusWire, says United won’t cancel a booking solely because an AI agent made it before 11 November. It advises passengers to check those reservations for errors.
Where it leaves AI travel tools and rivals
The ban lands as travel AI moves from suggesting trips to booking them. Odessia, which OpenAI acquired on 11 November, booked trips itself as an IATA-accredited agent, while Booking Holdings’ Lola books in chat. Airbnb’s agent will also book beyond Airbnb later, its co-founder says.
Rivals haven’t followed United. Law Commentary says Delta lets certain AI assistants complete reservations when passenger credentials can be authenticated, and American has confirmed some AI tools can help with purchases. MLQ reports Southwest has gone the other way, opening its flights to ChatGPT users. Fast Company notes that none of the other major US carriers have banned AI agents “yet”.
Other companies have drawn similar lines. PPC Land says Amazon sued Perplexity over its Comet shopping agent on 4 November 2025 and won a preliminary injunction on 9 March 2026. Amazon also blocked Meta’s Muse agent. MLQ reports that JPMorgan Chase blocks AI agents from its products.
Enforcement and award search tools
It’s unclear how United will spot agent bookings. MLQ points out that a contractual ban isn’t a technical block, and United hasn’t described its detection. View from the Wing’s Gary Leff notes that United says its systems can identify booking sources, but an Expedia booking may not show how it was made.
View from the Wing also reports that Expedia already has a ChatGPT integration that returns flight and hotel options with prices. The Expedia flow then sends the customer to Expedia to complete the purchase.
The wording also raises a question for frequent flyers. OMAAT’s Ben Schlappig asks whether software that automatically “discovers” or searches for any United product would include all award search tools. He reads the definition as potentially covering them, and he cites Air Canada’s earlier fight over scraping award sites. United hasn’t said it will apply the rule that way, and no source reports enforcement against any such tool.
Schlappig suspects United doesn’t want AI automatically tracking and repricing flights, issuing vouchers, or comparing value across airlines. That’s his suspicion, not a motive United has confirmed. MLQ and The Aviation Hub describe United as the first major US carrier to put such a rule in writing. The next test is whether the airline polices it at all.
