Marcie
Yes, no one leaves the plane. All lights come on and a crew change takes place. Fortunately, it is an 8 hour flight from Sal to CPT, so more sleep is possible. A crew change also takes place on the return. But, the convenience of one direct flight still makes it our first choice. I'm sure that all are aware that the ticket is less expensive buying from SAA than going on the Delta code share. Delta miles can be used for free tickets.
Ted