I have stopped flying USAirways. Maybe it was just my bad luck, but there have been three trips that I have had to stay overnight because I missed my connection. All three of them were with USAirways.
There was another time it too my family 18 hours to get from Boston to Florida. My daughter was under 2 at the time. We somehow missed our connecting flight, but they sent her checked car seat to the airport, but sent us to another airport. The details are a bit fuzzy, but I just remember them giving us a real hard time and the customer service people were not very nice.
USAirways Corp ended up giving us extra vouchers for a later flight which was nice, but at the time it made us really stressed.
The straw that broke the camel's back for us was with the last time that I flew them. They ripped the handle right off my double stroller. I know that things like that could happen with other airlines, but there was nothing they could do about it at the time. Then when I got home, I got the run around about who was going to be able to help me.
Needless to say, I don't fly them anymore. Good luck if you go. I am sure there are lots of people who have no problems. We were just not meant to be.