A portion of an air journey between two completely different airports is taken into account a definite unit of journey. For instance, a visit from New York to London with a stopover in Dublin contains two separate items: New York to Dublin, and Dublin to London. Every represents a change in plane or flight quantity, even when the identical aircraft continues the journey.
Understanding these items is essential for calculating airfare, monitoring mileage accrual, and managing journey itineraries. Traditionally, airways structured pricing round these particular person legs, a follow that continues to affect trendy fare calculations. Clear delineation of every leg additionally permits vacationers and airways to trace baggage, handle delays and disruptions, and guarantee easy connections.