Delta orders 100 Boeing 737-900s

Delta Air Lines confirmed today an order for 100 Boeing 737-900ER single-aisle jetliners, as part of the airline’s effort to replace its older, less efficient airplanes with more fuel-efficient ones.

The order is valued at $8.5 billion at retail prices, although carriers typically receive discounted prices.

The 737-900 is Boeing’s longest range single-aisle airplane. It can carry up to 180 passengers in a typical first class and coach class configuration.

The order is good news for Boeing and for Spirit AeroSystems. Spirit builds the fuselage, nacelles and pylons of the 737 in Wichita.

The jets will be delivered with Boeing’s new  Sky Interior, which feature roomier cabins and overhead bins and better lighting.