This is page is about the Airway of this game. For the other, see Airway (Mario & Luigi: Bowser's Inside Story).
The Airway is a very large room that contain bridges. A bottomless pit with air blowing from it is also seen.
During the first mission of the Secret Mine D-1 Cold Case, Luigi must lead the Toad Assistant over the large area. However, the bridge is down and Luigi must cross the narrow rope himself then pull away the rope on the other side to bring up the bridge. The Toad Assistant crosses over and the two can finally use the elevator to reach the Chalet.