OpenTravel Alliance Hotel

OpenTravel hospitality XML messages.

Definition

OpenTravel Hotel key messages: OTA_HotelAvailRQ/RS (availability), OTA_HotelRateAmountNotifRQ (push rates), OTA_HotelInvCountNotifRQ (push inventory), OTA_HotelResRQ/RS (reservation), OTA_HotelResModifyRQ (modification), OTA_CancelRQ. Distribution: Booking.com, Expedia, Hotelbeds use OTA HotelAvail as integration standard. Channel managers: SiteMinder, Cloudbeds, eRevMax (acquired by Cendyn) route OTA messages to PMS hotels.

Origin

OpenTravel Alliance founded 1999 ; OTA Hotel messages v1.0 published 2000 ; biannual releases ; current release 2024.

Example in context

Booking.com sends ~5M OTA_HotelAvailRQ per minute to ~2.4M partner hotels ; OTA_HotelAvailRS responses aggregated to display real-time availability to end user.

Related terms

• OpenTravel Alliance — organisation.