I have had the same problem in that I have a hub at large, but virtually under utilized airport. The airport can handle fully loaded 747-400's (which I don't use). All of my routes are pretty unchallenged and longer in range and for the most part the routes are to major cities showing a lack in service with room for much more. Yet I go in and add, say, 162 seats on a route that has demand for over 400 seats in Y and yet it still operates in the red. I have decreased prices, increased prices, and everything in between on these particular routes. One route I found (surprise!) is one that needed a substantial fare increase and the route started making profits. Go figure. Any ideas, tricks, experience with this or just an explaination as to how this comes about?