American Airlines has round-trip flights from Austin (AUS) to Pittsburgh, Detroit, Columbus, Indianapolis, or Albuquerque (PIT, DTW, CMH, IND, ABQ) for $178-$188 with a connection. Flights October to December. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available. Origin/Destination reversible. No Christmas dates available.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Click for more details and booking links Cheap Flights: Austin to/from Pittsburgh, Detroit, Columbus, Indianapolis, or Albuquerque $178-$188 r/t [October-December] (No Christmas) – American Airlines