A company designs, packages, and sells travel itineraries that combine transport, lodging, and activities. That company is a tour operator. It acts as the principal organizer rather than merely a retail agent.

Operators negotiate with airlines, hotels, and local suppliers, then price the bundle for consumers or for travel agencies to resell. They carry responsibility for delivery of the promised elements and for handling disruptions. Specialist operators focus on regions, activities, or demographic segments.

Financial protection schemes in some countries safeguard payments if an operator fails. Quality varies with the care taken in supplier selection and itinerary design. For complex or unfamiliar destinations, a reputable tour operator can reduce risk and planning effort substantially.

The operator's name on the voucher is the name travelers will hold accountable.