Booking.com is a global online travel agency (OTA) and distribution channel that integrates with hotel Property Management Systems (PMS) primarily through channel managers or certified connectivity partners. The integration enables properties to automatically synchronize availability, rates, and restrictions (ARI) and to receive reservations directly into the PMS, reducing manual work and helping prevent overbookings.

Through Booking.com connectivity (often via the Booking.com Connectivity APIs used by partners), hotels can manage inventory and pricing more efficiently, support multiple room types and rate plans, and streamline operational workflows such as guest details capture, reservation modifications/cancellations, and reporting. For many properties, the main benefit is stronger distribution and higher occupancy while maintaining accurate, real-time data across systems.