What distinguishes a one-way ticket from a round-trip ticket?

A one-way ticket is characterized primarily by its purpose, which is to facilitate travel from a departure point to a destination without including a return journey. This means that when a passenger purchases a one-way ticket, they are not committing to a specific return date or flight. This is essential for travelers who may not have defined plans for returning or who wish to arrange their return travel separately based on potential changes in their itinerary.

In contrast, a round-trip ticket always includes both outgoing and return legs of travel to and from a specific destination, typically on scheduled dates. This distinctive feature of a one-way ticket makes it particularly beneficial for those whose travel plans are flexible or who are moving to a new location.