Originally Posted by
Hotel Tango
Actually, this is not the case with all carriers. What is the case is that most Ts and Cs stipulate that if you break the sequence of travel then that will invalidate the ticket. If one skips the last sector it may invalidate the ticket only from that point on, which of course is of no consequence.
Might be if you booked a round trip and this was the outbound leg? Could that invalidate the return (shouldn't but wouldn't surprise me)? But really, who sets the rates in any case? The fare differential today is absurd. Seems like the more airplanes you fly on for a given itinerary, the cheaper it is.