United Airlines bans AI agents from booking flights on behalf of travelers

United Airlines has moved to block third-party artificial intelligence agents from booking flights on behalf of travelers, updating its booking and ticketing terms to prohibit AI agents from making, changing, or servicing tickets or purchasing services. The change, reported by Bloomberg on November 11 as holiday travel peaks, restricts access both directly on United's apps and website and indirectly through travel agencies and aggregators that sell its tickets. According to CBS News, the airline's own statement says it is "taking steps to restrict access" and that sharing account credentials with personal, third-party AI assistants "can expose sensitive information, and actions taken by these tools may result in unintended purchases, account changes, or use of MileagePlus miles." United also pointed to federal rules, including requirements tied to in-person verification such as bag checks. The blog View from the Wing, which reviewed the revised contract of carriage, cited Rule 6.J.6 as prohibiting AI agents from making, changing, or servicing tickets and Rule 5.H as allowing United to cancel reservations created that way, though CBS did not report an effective date.

The ban is narrower than the headline suggests. Outside AI assistants can still show travelers flight options and prices; they simply cannot complete the purchase. A traveler can ask a chatbot for the cheapest Newark to Denver fare on a given Friday and get a real answer, then must go to United to pay for it. Booking through established sellers like Kayak, Hopper, and Google Flights is not affected, CBS reported.

CEO Scott Kirby told the Wall Street Journal, "To be honest, I don't want to create another middleman." Aviation analyst Henry Harteveldt told CBS the same point in more words: United doesn't want to add "yet another, and potentially even more powerful, intermediary than they already face." Airlines have spent two decades trying to pull customers away from online travel agencies and toward their own apps, because the booking page is where they sell seat upgrades, bags, and loyalty sign-ups. An AI agent that picks the flight and pays for it sits in exactly the spot the airline has been fighting to own.

United is not the first company to restrict agentic AI. In September, Amazon blocked Meta's Muse AI agent from shopping on its site. Other airlines have taken a different approach: in October, Southwest Airlines launched a ChatGPT plugin that allows travelers to search the carrier's flights and fares. Delta has reportedly used technical barriers that spot rapid requests and unusual click patterns. United's version writes the ban into the contract, giving the airline a legal basis to cancel tickets as well as a technical firewall. Agent-made bookings remain rare today, and neither the airline nor any outlet has published a figure for how many United tickets come from AI agents.

The move comes as airlines face scrutiny over AI-powered pricing. In October, the Federal Trade Commission ordered United, Delta, JetBlue, and six other major carriers to turn over information on how AI tools influence individual fare pricing and how customer data is used. A new "Consumer Patience Index" poll found that 61.2% of respondents say they have yelled at automation to be routed to a human faster, and "talking to a bot that doesn't understand me" ranked as the biggest pain point. United has not said how it will detect agent bookings coming through agencies and aggregators, or when enforcement starts.