United Airlines Bars Third-Party AI Agents From Completing Bookings

United Airlines blocked third-party AI agents from completing bookings on its platforms as of November 11, 2026, while still allowing them to read flight options and prices. The restriction covers United.com, the United app, and extends to travel agencies and aggregators unless they obtain explicit permission from United. Pre-existing bookings are unaffected, and United currently has no partnerships with any third-party AI agents. The restriction also covers bots, browser extensions, and browser features that act autonomously on United's platforms.

CEO Scott Kirby cited exposed login credentials, accidental purchases, misused loyalty miles, and aviation compliance conflicts as the basis for the policy. One compliance issue is specific: federal rules require passengers to personally attest that checked bags contain no explosives, a step no AI agent can legally perform. Kirby also cited the risk of losing the direct customer relationship to AI intermediaries, comparing it to the earlier loss of customers to online travel sites. United pointed to similar moves by banking and retail companies as precedent for the policy.

Among retailers, Amazon blocked agents from Perplexity and Meta while pushing its own Buy for Me tool, while Walmart took the opposite approach with Agent Profiles that give outside AI agents defined permissions and spending limits.

United's back-end systems already tag every booking by source, distinguishing individual customers, travel agencies, and AI agents, so the technical infrastructure to enforce the policy already exists.