This is a hypothetical question.
Say you book a flight from A through B to C. For some reason or another, you choose not to board the last part of my trip. Would this create problems for other passengers?
When a checked in traveller does not show up for a flight, that flight is actually delayed – at least if he/she has baggage checked in. If he/she doesn't show up within a reasonable time, the crew will start off-loading the baggage, delaying the flight even further. In my experience, this process takes approximately 20 minutes (which may be very frustrating for other travellers, whom may have planes to catch at the next airport).
So, to recap:
- If I don't show up for one part of the journey, will that delay those flights?
- What if my luggage is short checked to point B (for example, when they need to be taken through customs) and you don't check them back in?
- What if I only bring carry-on luggage?
There are some related questions below, but they focus on whether or not you as a traveller may face problems, whereas I am more interested in what problems it will cause for the airlines and other travellers.
Not flying the last segment of the first half of a return flight
Consequences of not showing up for one leg of journey
Do you have to take the second leg of a domestic flight?