ELP/Tx-
I think you very clearly pointed out what many people fail to "get" about Southwest's business model. It's not built upon taking passengers away from other airlines, but rather upon drawing passengers away from other modes of transportation. And, moreover, while US Airways has the market share advantage in Philadelphia, Southwest has larger market share in every single city being connected non-stop to PHL (and most that can reach PHL with a single connection).
etops1-
US Airways could have benefited tremendously from Southwest's entry into BWI *if* they had had a competitive cost structure. For example, BWI-PVD traffic increased over 800% (i.e. over 9x as much traffic year-over-year) between 3Q96 and 3Q97. WN only had 49% of that market in 3Q97, and clearly US had most of the rest. On that specific route, US Airways traffic likely increased by 300-400%! Both airlines were filling their planes, but only one had the cost structure to make money doing it.
Do you think the reason that only about 120 people fly between PVD and PHL daily is the fact that they prefer to drive/take the train, or do you think that the *average* $310 one-way fare might have something to do with it? If the traffic increase on that route looks anything like the BWI-PVD route did, US will need to run A321's and 757's to handle the demand (if they match WN's fares).
The problem is that CCY management still doesn't seem to get it, or some group of people is just unwilling to make the necessary changes to make the airline operate more efficiently. Operating hub banks at an airport like PHL is dumb, especially when management knows that O&D traffic is what makes PHL valuable to US. Replacing mainline with ERJ's, CRJ's, and EMB-170's to compete with LCC's is dumb. Why would you fly on an RJ (with no F cabin) to ATL when AirTran offers brand-new 717's with a business class cabin? And US Airways (to hear the pilots and flight attendants tell it) still hasn't been able to improve the way it schedules people (and thus pays people to sit around). Moreover, there has been little done to fix the pricing model beyond trying to penalize frequent flyers for purchasing non-refundable tickets!
Did you know that Southwest's revenue yield (fare paid per miles flown) is only about 5% lower than US Airways'? They sell a far greater percentage of their seats as modestly priced refundable tickets than US sells of its seats as full "business" fares. They dump a smaller percentage of their seats at deeply discounted fares.
WN has lower costs than US and will continue to have lower costs than US even if CCY could manage to cut costs by $500 million/year. Management needs to restructure operations, fix the pricing structure, and realize that they do not have the resources to try to kick WN out of PHL with a price war or by gumming up the operation. LUV has deeper pockets and PHL will represent < 1% of their system when it opens. UAIR needs to play to the strengths of its product (assigned seating, IFE, network, etc.), market it, and price it competitively. If the only response is a price war without fixing the fundamentals, US Airways will simply run out of money.
To go back on topic...
I agree whole-heartedly that WN could pretty much print money on the shuttle routes. Their walk-up fare between DAL and HOU (if they priced a hypothetical WN Shuttle service comparably) is lower than Acela's fares, and far lower than the current Shuttle walkup fares.