Delta Air Lines signed a firm purchase order for 20 Bombardier CRJ900 regional jets, with deliveries scheduled to start late this year and continue until 2020. The aircraft will replace older regional jets operated by Delta Connection carriers. The June 20 deal, valued at $961 million at list prices, will be the launch order for Bombardier’s new Atmosphere cabin for the CRJ. The Atmosphere product includes wheel-first roller-bag overhead bin capacity, a larger lavatory and improved ...