United Airlines Blocks AI Agents Like Muse and Instinct From Booking Flights

United Airlines has updated its Contract of Carriage to prohibit third‑party AI agents from booking, modifying, or servicing tickets, becoming the first major U.S. carrier to impose such a ban. The new Rule 6.J.6 explicitly forbids AI Agent use, while Rule 5.H allows United to cancel any reservation made by an AI agent without notice, joining existing prohibitions on hidden‑city and throwaway ticketing.