I contacted my TA and asked about it as someone else here had gotten her Disney Air info.
DCL told him, the TA, that they were working on it that day. Once they had it settled, they sent him the info and he passed it on to me. But right now, if I look at my reservation with
www.disneycruise.com it's listed under my reservation summary. I clicked on that, then went to flight, hotel, transfers and clicked on it. Flight details was there as well.
For the luggage fees I asked the TA and he verified. It just depends on what airline you are flying and what their fees are.
Our airlines (United and Delta) have fees for domestic flights, but not for international ones. We have two legs that are domestic.
Good luck!