I would expect some hits to profit margin as well. I'll take an airline with a baggage fee if I don't have baggage, typically a short flight / overnight trip. I

I would expect some hits to profit margin as well. I'll take an airline with a baggage fee if I don't have baggage, typically a short flight / overnight trip. I'll take Southwest for long haul flights when I typically have luggage. The long haul flights have higher margins than the shorter commuter/feeder flights.