What is meant by 'through flight'?

A 'through flight' refers to a service where a passenger is able to travel from a point of origin to a final destination, making one or more stops along the way, but remaining on the same aircraft throughout the journey. This means that once passengers board at the origin, they do not have to change planes at the intermediate stops, which simplifies the travel process and enhances convenience. The flight maintains its continuity for the passenger, who can stay seated while the aircraft makes stops to let others on or off.

In contrast, alternate options suggest different types of flight experiences. A flight traveling to multiple destinations on different aircraft implies changes that do not align with the 'through flight' definition, which emphasizes remaining on one aircraft. A flight with no stops describes a non-stop service, not a through flight, while a direct flight that does not require boarding procedures points to another form of travel where passengers do not need to re-board, but this still doesn’t capture the essence of remaining on the same aircraft with stops along the journey. Hence, option B accurately describes the concept of a 'through flight.'