What does it mean when a flight is designated as a 'through flight'?

A flight designated as a 'through flight' refers to a direct journey from the origin to the final destination that makes one or more stops along the way, but without requiring passengers to change planes. This means that passengers can stay on the same aircraft until they reach their intended destination, making it a convenient option for travelers who may want to avoid the hassle of switching flights.

This is why the concept of a 'through flight' emphasizes the uninterrupted travel experience despite the presence of stops. In contrast, nonstop flights connect two cities without any stops, while flights with connections at multiple airports would require passengers to change planes, which is different from the scenario described. Therefore, a through flight offers a balance between efficiency and convenience, allowing for a simplified travel experience.