- Rule 5.H allows United to cancel agent-made or agent-managed reservations without notice.
- Agencies need explicit United permission to deploy their own internal AI tools.
- The Digital Trust Center is slated to add account-protection and unintended-action guidance.
United Airlines said November 11, 2026, that it would block unauthorized third-party personal AI agents from accessing its digital services and handling flight transactions. The restriction reaches its website and app, as well as agencies and booking platforms.
The airline is updating its ticketing and distribution policies. It has not specified when the restrictions take effect. United says these tools can book and manage trips with little human input.
The contract’s Rule 6.J.6 prohibits AI agents from making, changing or servicing tickets, as well as buying other products or services. Rule 5.H gives United the right to cancel reservations made or managed by agents without notice.
The definition includes standalone agents, AI assistants and browsers with AI capabilities. A passenger’s supervision does not change the restriction. Unauthorized agents also cannot purchase paid seats or upgrades, and cannot access customer accounts.
The restriction covers ticket changes, purchases and account access
The rules reach beyond a one-time purchase. They cover agents that alter or service a reservation after the initial transaction, and they apply when an agent operates through an intermediary such as an agency or aggregator.
The airline has not authorized any AI booking agreements so far. Travel agencies and platforms cannot use third-party agents to search for, purchase or manage United trips. Their own internal AI systems need explicit permission from United.
That distinction leaves room for people to use digital tools to compare options, then make the choice and complete the purchase themselves.
People can still choose a flight and complete the transaction themselves
Human-led transactions remain available through different channels:
- A traveler can buy directly from United.
- An advisor can make the reservation through a GDS.
- A customer can use Google Flights or ChatGPT, provided the person decides and completes the transaction.
- Kayak, Hopper and Google Flights may display United fares, but an unauthorized agent cannot finish the purchase for the customer.
AI trip research remains allowed. However, United’s website terms require written permission before automated access to its site or app. The human-led distinction also applies when someone uses a platform that incorporates AI: an agent can surface flights, but the person must handle the transaction.
United points to account security and passenger-safety rules
The airline says agents may expose login information, make unwanted purchases, alter accounts or use MileagePlus miles. United described the concern this way:
“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 cites potential compliance concerns involving Federal Aviation Administration and Department of Transportation requirements. At check-in, passengers must acknowledge information about dangerous goods. Under 49 CFR 175.25, airlines must provide that information at purchase and check-in and obtain the passenger’s acknowledgment.
That federal requirement does not itself prohibit AI transactions. United’s restriction is company policy. The airline says it designed its app to let customers manage their own travel securely, and plans to add guidance to its Digital Trust Center about account protection and help after an unintended action.
Kirby and analysts have also raised questions about intermediaries
United CEO Scott Kirby addressed the commercial role of intermediaries at an event on November 10. “To be honest, I don’t want to create another middleman.”
Aviation analyst Henry Harteveldt said AI agents could become another powerful intermediary among search engines, comparison services and online travel agencies. He also pointed to the cost of flight searches, which could rise if automated tools run many queries.
Analyst Gary Leff has raised a separate enforcement difficulty: an agency’s seller name may not reveal who actually used its site. He also discussed the possibility that companies controlling flight recommendations could seek referral fees or favor airlines accepting their terms. United has not said either possibility prompted its policy.
The Federal Trade Commission has ordered Delta, United and JetBlue to explain how they set fares and whether personal data plays a role, amid concerns about surveillance pricing.
Other travel and technology companies are testing different approaches
Meta, Google, OpenAI and Anthropic have introduced agents for tasks including shopping and restaurant reservations. Meta’s Muse and OpenAI’s Dots are among the named consumer tools. United says it has not seen many people try to use agents to book flights.
Southwest displays flights in ChatGPT and other models, including Gemini and Claude, for people to book themselves. Delta, American and Southwest also use AI in other operations, including customer service and pricing. In other sectors, eBay appeared to block agent browsing, while major banks have restricted agents over security concerns.
United says it will keep evaluating these assistants as they develop. It has described itself as the first major U.S. carrier to formally announce restrictions of this kind.
United will honor earlier reservations, but advises passengers to check them
United says it will honor reservations made by AI agents before November 11, 2026. The airline advises passengers with those trips to review the details for errors. Future travelers can use a human-led channel, including an advisor or a digital platform where they make the decisions and complete the purchase.
