As many pundits have said the Legacy's don't have enough money for a massive expansion to take over a city. As NWA has stated PIT
could be looked into as a possible source of new income but it's assumed it would only be from their existing system which is largely Midwestern. I'd assume most Legacies would look at PIT
's possibilities the same way - a stronger spoke to a hub. With the rush of money into LCCs and potential startups of that ilk PIT
could fit into any expansion plan.
USAir only makes up 4 percent of the seats today so that would hardly create a great sucking sound in their absence. PIT
however could be a good revenue source center for an LCC.