Northwest began operating the three-engine 727s in 1964 and its 727 fleet eventually grew to 92. In June 1999, Northwest announced that it would retire its 727-200 fleet and replace them with ...

In June 1999, Northwest announced that it would retire its 727-200 fleet and replace it with quieter, more efficient Airbus A319s and A320s. The airline currently operates 76 A320s and 57 A319.