Boeing 737-900ER
The longest Next Generation 737 — extra exits for up to 220 seats · First flight 2006 · In service 2007
The original 737-900, launched by Alaska Airlines and delivered from May 2001, was longer than the -800 but kept the same exits, which capped it at 189 passengers. The 737-900ER (Extended Range) fixed that with an additional pair of exit doors and a flat rear pressure bulkhead, raising maximum seating to 220.
Boeing launched the -900ER in July 2005; it flew in September 2006 and was delivered to launch customer Lion Air of Indonesia on 27 April 2007. Optional auxiliary fuel tanks and standard winglets gave it about 5,460 km of range.
Boeing delivered 505 of them. Alaska, United and Delta all built large -900ER fleets for busy US domestic routes, and the type was succeeded by the 737 MAX 9.
