Originally Posted by
quwee
If I do have to re-check in at Chicago, will I still be considered to be traveling international so that I won't be charged for overweight bags and possible an extra one (saying that I’m within the limits for the international flight I was on)?
What
MoreMilesPlease says. If using a different tix, chances are you'll have to re-check at ORD so your checked bags will be re-routed correctly and accordingly (i.e. RDU).
Since the other tix is (US) domestic and not part of your original international tix, I believe your free luggage allowance will go by the domestic standard per airline's baggage policy. There should be no overweight issue since both international and domestic bags are capped at 50 lbs/each.
Assuming you don't have any elite status, it's fairly unlikely for you to get away with fees for the two checked bags ($25-1st bag + $35-2nd bag or something).
Make sure you have plenty of time to "re-connect" & "re-check" at ORD. You won't be protected when flying on two separate tickets when wild things happen. Good luck!