Originally Posted by
uclacolumbiaunc
Is it allowed to SDC with different routing but same origin / destination?
for example, if i book LAX-RDU-DCA in first class, can I SDC to LAX-ATL-DCA provided there is first class seat available in LAX-ATL and ATL-DCA?
SDC to a different routing but same endpoints is allowed. Technically, the routing must be allowed by the fare (so if a broken fare, no). However, agents are very reasonable about what they actually allow, especially if the flights you're getting off of are a lot more crowded than the flights you're getting on to.