Airline industry lingo, which covers any of the low-fare air-carriers such as AirTran, Jet-Blue or Jet-West. This also describes the level of service one recieves while on the flight, such as recieving peanuts or pretzels for snacks, instead of actual meals!
Josh did'nt have enough money to fly SouthWest, so instead he had to take a WalMart-Flight back home to see his parents!