Originally Posted by
milesandmoremiles
Chances are the system wouldn't allow them to do this because the system is looking at your routing as being AAA to BBB, not AAA to CCC to BBB which is not the same routing which is required by the move up/standby rules.
Originally Posted by usairways.com
You can move up ... if the flight is:
* Within 6 hours of your original scheduled departure
* On the same day (departing after 3 AM) with the same number of stops
* All flights have open seats (if you have connecting flights)
... the same rules apply: the flight must be within 6 hours of your original scheduled departure, and on the same day with the same number of stops.
Per the US MoveUp rules, a direct flight with one stop *should* be able to MoveUp to a non-direct connection with one stop. It's the number of
stops that must remain the same, not the routing.
Examples, all assume departure within 6 hours of original flight: AAA-BBB (direct, but stops in CCC) can MoveUp to AAA-DDD-BBB - one stop each itinerary. Same as AAA-CCC-BBB can MoveUp to AAA-DDD-BBB (both non-direct with one stop).
However, YMMV when it comes to an agent applying the rule as written. I've read on here of attempted denials of MoveUp because the agent thought you could not change the intermediate city or simply because there were connecting flights involved.