last minute

Refers to travel products—such as flights, hotel stays, package holidays, cruises, or tours—booked very close to the intended departure or check-in date. In industry practice, this typically means reservations made within a short booking window, often from a few days to a few hours before travel. Within Travel Operations & Distribution, this concept is central…

early bird

Refers to a discounted advance-purchase offer that rewards travelers who book well ahead of their departure date. Commonly used by airlines, hotels, tour operators, cruise lines, and rail companies, this pricing strategy encourages early commitment, helping travel suppliers secure base demand, improve capacity planning, and manage revenue more predictably. In practice, such offers are usually…

rate parity

Refers to the commercial practice by which a hotel, airline, or other travel provider maintains consistent publicly available prices for the same room, seat, or product across all distribution channels. Within the architecture of travel operations and distribution, this principle governs how rates are displayed on brand websites, global distribution systems (GDS), online travel agencies…

room block

Refers to a pre-arranged allocation of a specific number of hotel rooms, held at an agreed rate for a defined period, usually in connection with a group event, conference, wedding, tour series, or corporate program. In the travel operations and distribution ecosystem, it is a vital contracting and inventory tool that turns projected demand into…

cut-off date

Refers to the latest date and time by which a booking, amendment, or cancellation must be confirmed before it is automatically released or no longer guaranteed. In the travel operations and distribution landscape, this deadline is set by suppliers—such as hotels, tour operators, cruise lines, or activity providers—and enforced through reservation systems and distribution channels.…

availability

Refers to the number of bookable units—such as hotel rooms, airline seats, cruise cabins, rental cars, or tour spaces—currently open for sale within a given system, date, and price category. In the realm of travel operations and distribution, it is not merely a count of remaining inventory, but a dynamic, system-governed status that determines what…

reservation

Is a formal commitment to hold travel services—such as hotel rooms, airline seats, rental cars, or tour spots—for a specific guest, at a specific time, under agreed conditions. Within travel operations and distribution, it functions as the crucial bridge between a traveler’s intent to journey and the actual allocation of inventory in the global tourism…

inventory

Refers to the total set of travel products and services that are available to be sold at any given time—whether seats on a flight, rooms in a hotel, cabins on a cruise, tickets for an attraction, or slots on a guided tour. In the realm of Travel Operations & Distribution, it is the foundational resource…

CRS

Is a computerized platform used by travel companies to store, manage, and distribute travel inventory—such as flights, hotel rooms, car rentals, and packages—in real time. Within the architecture of Travel Operations & Distribution, it functions as a central hub where availability, rates, and booking rules are maintained and synchronized across multiple sales channels. Originally rooted…

GDS

is a centralized digital platform that connects travel suppliers—such as airlines, hotels, car rental companies, and rail operators—with travel sellers, including travel agencies, online travel agencies (OTAs), and corporate travel managers. Within the architecture of modern tourism, it functions as a powerful distribution backbone, aggregating live inventory, schedules, availability, and prices, and making them accessible…