Holiday Inn launched Holidex, a centralized reservation system, in 1965. It allowed a guest at one Holiday Inn to request a reservation at another location through the chain’s connected booking network.
At the time, hotel reservations were often handled locally, making it difficult for travelers to arrange rooms across a long road journey. Holidex linked Holiday Inn properties by teleprinter, allowing staff to check availability and communicate booking requests between hotels. It was an important technological advantage for a rapidly expanding motel chain.
The system complemented Holiday Inn’s broader strategy of standardization. Travelers could expect familiar room features, restaurants, pools, and service standards while driving between American cities. By the late 1960s, the chain had hundreds of locations and was becoming a dominant force in roadside lodging.
Holidex is sometimes confused with later airline and travel-industry systems such as Sabre, Apollo, or Amadeus. Those names belong to different reservation-system histories; the Holiday Inn system introduced in 1965 was Holidex.