Originally Posted by
jsloan
Any time your ticket is not to your intended destination, there is some risk during IRROPS. In this case, it sounds like that risk is minimal: if your son has to get rebooked and ends up going through a different gateway, he'd still get to where he needs to be. Any checked luggage will go to the ticketed destination airport.
OP does not state though that the 3 legs constitute a single trip from A to C (via 2 stops). The third leg might be very separated from the first and second such that IRROPs and checked bag concerns may not apply.