US Airways code shares with United Airlines, and that's how I ended up on them even though I booked thru United.  I've gotta love the creative routings both carriers sent me.  Traveling from Pittsburgh to Kansas City, I had to connect in Newark.  Coming back I had to connect in Charlotte.  Hey, who doesn't love the whole going-east-to-get-west thing?  \n\nAnd another thing....wait!  US Airways still exists?  And they still fly their own planes into Pittsburgh?  I didn't know that!