Boeing 737-400

CANAC would operate the 737-400 on a smaller scale. They would service high-density short haul routes that required more seats than a 737-200 or 737-300, like San Salvador to Mexico City. They were fitted with an all economy configuration.

N321CN was delivered new to CANAC in 1989.It served until 1997 when it was sold to Skylark Airlines in France. It served with them until it ended up with Jettime, Blue Air, and finally Lao Central Airlines, which would fly the aircraft until it stored and scrapped it at VTE in 2013.