Delta orders Boeing 737-900 jets for $8.5bn | Aviation & Airliners |

Delta Air Lines, the second-largest US carrier by revenues, on Thursday ordered 100 Boeing narrow-body jets worth more than $8.5bn at list prices, giving the US aerospace company a welcome boost after a series of setbacks.

Last month Boeing was forced to split a large order from American Airlines with its arch-rival Airbus, part of Europe’s EADS, and was hurried into announcing a plan to upgrade its best-selling 737 family of narrow-body aircraft rather than building an all new small jet.