The Higher Intermediate Fare is a pricing principle used in international airline ticketing. It dictates that if a passenger has a stopover at a point where the fare from the origin to that point is higher than the through-fare to the final destination, the airline must charge the higher amount. This prevents travelers from exploiting hidden-city ticketing loopholes on multi-leg international itineraries.
Heard on the job
The system keeps pricing this out with a massive HIF because of the stopover in London.