I purchased a ticket LAX-PTY. The fare basis is "I". However, the domestic segments are in "Y".

I called in to see about upgrading with cash or miles. No dice...cash was too much for me and there was no availability for the mileage upgrade...actually, she said they couldn't wait-list me because I already have a BE fare.

I know this flight sells a lot of BE seats and the normal odds of an FO getting the upgrade are in the slim and none category even with a "Y" fare.

My question: Since my fare is actually "I" (a biz fare) does that give me, a lowly FO, priority over even a DM on a "Y" fare?

Just trying to manage my expectations.

Thanks!