Originally Posted by
GeorgeJ
OK, got it.
So what happens with WN if you book C-B-A and don't show for the C-B flight? B-A gets cancelled? Or your boarding pass "beeps" at the gate and you're asked to pony up additional $$ for that flight?
yes, it gets cancelled, and as a result It'll beep at the gate all right because to fly the same day as no-showing to an earlier segment, you have to pay full walk up fare
You can book any itinerary you want, you're free to leave the flight anytime you want without penalty, however you won't have any unused funds for the unused portions of your flight. And you won't be able to check bags.
The return portion of your flight is safe and unaffeected by your origin.
*note, that the system often automatically combines & prices stopovers of less than 4 hours all as a 'one way' segment without any return. You can see this later in the booking process, it's most easily apparent when doing award reservations.