What term describes changes in a passenger's itinerary due to flight disruption?

The correct term for changes in a passenger's itinerary due to flight disruption is "Involuntary Re-routing." This term specifically refers to situations where a passenger's original flight plan is altered by the airline, often due to unforeseen circumstances such as flight cancellations, delays, or other operational disruptions. Involuntary re-routing aims to ensure that passengers reach their destinations as efficiently as possible, under the airline's obligation to provide accommodation and alternative travel arrangements.

Involuntary re-routing is an important concept in the airline industry because it reflects the airline's responsibility to its customers when unforeseen events occur. It helps to maintain passenger satisfaction even in the face of disruptions, as airlines provide alternatives to keep travelers on track.

The other terms listed do not accurately capture the same meaning. For instance, "Interline" refers to agreements between airlines that allow them to handle passenger transfers and baggage across different airlines, which does not imply an alteration due to disruption. "Misconnection" indicates a situation where a passenger fails to make a connecting flight, often leading to potential re-routing but does not describe the process itself. Lastly, "Left Behind Passenger" typically refers to passengers who miss their flight and are not necessarily indicative of the airline's re-routing obligations in response to disruptions