Boeing 737-900ER: Examining The Type’s Trio Of US Operators

The Boeing 737-900ER (i.e., Extended Range) is the largest and final variant of the Boeing 737 NG line and was built to directly compete with the rival Airbus A321. The first 737-900ER was rolled out in 2006 for its launch customer – the low-cost Indonesian airline Lion Air. The 900ER is a stretched variant of the 737NG family with a maximum seating capacity of 220 passengers, and it differs in many ways from its standard counterpart. Over 500 900ERs have been delivered, most of which are operated by Alaska Airlines, Delta Air Lines, and United Airlines.