Guys and gals,

I'm flying from SEA to ORD in November on a US Air Flight number which is actually a United flight (UA Metal ?).

I'm Premier Exec on UA, so I understand I'd be allowed 3 check-in bags per the United / Star-Alliance baggage policy, if I were flying United.

Since USAir isn't Star Alliance (and that's the ticket issuer), am I still supposed to check-in at the UA counter?

Regardless of whether I check in at US or UA, will I be allowed to check-in 3 bags?

I've got an infant with me, and checking in 3 bags is very important (preferably without excess baggage surcharges)!

Any pointers appreciated!

Thank you!
R