United Airlines Bans Unauthorized AI Agents From Booking

United Airlines announced on November 11, 2026 that it is barring unauthorized third-party AI agents from booking, servicing or purchasing travel through its digital platforms and indirect distribution channels. The airline cited privacy and account-security risks, unintended transactions and potential conflicts with Federal Aviation Administration (FAA) and U.S. Department of Transportation requirements.

The stakes for travelers are concrete. United's updated Contract of Carriage lists reservations made, modified or serviced by AI agents among bookings the airline may cancel without notice.

Why United moved now?

United says sharing account credentials with personal AI assistants can expose sensitive information. Agent actions may also produce unintended purchases, account changes or use of MileagePlus frequent-flyer miles.

The regulatory concern is check-in. A person must acknowledge that bags do not contain banned substances such as explosives. United says automated actions have the potential to violate FAA and DOT regulations, and automatic check-in could cause travelers to miss important safety content.

The policy separates customer permission from airline permission. A traveler may authorize an assistant without United being required to let it transact. United's customer guidance says the airline does not yet work with any third-party AI agents.

Takeaway: your OK doesn't equal United's OK.

What can travelers still do?

AI-assisted research and planning remain permitted when the tools use general information and do not access united.com or the United app. United advises customers not to provide credentials, confirmation numbers, MileagePlus details or other sensitive information. Customers can review AI-generated text and run resulting searches themselves on United's website or app.

Bookings made by third-party agents before November 11, 2026 will not be canceled. United's guidance recommends:

• Reviewing recent travel plans to confirm correct booking and ticketing
• Changing passwords immediately after sharing MileagePlus login details
• Securing accounts after suspected unauthorized access or purchases

Takeaway: research yes, transactions no.

How broad is the ban?

The Contract of Carriage, revised November 11, 2026, defines an AI agent as software or a service taking autonomous or semi-autonomous action, even when a passenger or another person supervises or approves its actions. The definition covers discovering, searching, booking, purchasing, ticketing, servicing and managing products offered by or through United, including flights, seats, upgrades, ancillary products and partner products.

That scope reaches assistants built into social media, messaging, search and other consumer platforms, AI-enabled browsers, standalone agents, and third-party assistants reaching United through connections supplied by travel agencies or other intermediaries. The contract prohibits AI agents from making, modifying or servicing tickets and from purchasing services or products.

For tickets involved in violations, United's remedies extend beyond cancellation. The airline reserves rights including:

• Invalidating tickets
• Canceling remaining itinerary segments
• Deleting MileagePlus miles or other benefits
• Revoking elite status
• Terminating program membership
• Taking legal action

Takeaway: the contract text leaves little room for workaround agents.

What are the rules for platforms and data?

United's updated website terms require prior written permission for automated-agent access to united.com or the mobile app, and allow the airline to block or limit such agents. They also prohibit using fares, schedules, availability, pricing or other site and app data to train, fine-tune, ground, evaluate or otherwise develop any AI or machine-learning model or system.

The exemptions are narrow:

• Disability assistive technology
• Standard browsers operated by a person, but not their automated-agent features
• Limited tools that only turn a person's voice or text into a search the person runs and reviews
• Public-page search indexing
• Tools operated by or for United

Travel agencies and booking platforms may not use third-party AI agents to search for, book or manage United travel on direct or indirect channels. Agencies' own third-party AI tools require United's permission.

Takeaway: even intermediaries need explicit sign-off from the airline.

Is there a path back for AI booking?

United says it wants standardized, secure technology integrations with privacy, security, authorization and accountability protections before allowing agents to interact directly with accounts or bookings. That makes approved integrations, rather than customer-shared credentials, the gate for AI-managed travel on its channels, preserving a path for automated booking under airline-defined controls.

Other carriers now face the same question United just answered: control the AI channel on their terms, or watch agents transact on someone else's.