United Airlines disclosed that it has 160 options for Boeing 737 Max 9 and 737-900ER aircraft on top of its order for 150 of the aircraft, in a regulatory filing last night.
The options are split between 100 for the 737 Max 9 and 60 for the 737-900ER. The aircraft would have CFM Leap-1B and CFM56-7 engines, respectively.
Chicago-based United announced a firm order for 100 737 Max 9s and 50 737-900ERs with deliveries from 2013 to 2022 on 12 July.
The airline says that it will use the 737s to replace older aircraft.
United now has firm orders and options for 319 737s, according to Flightglobal's Ascend database.
Separately, United disclosed that it had received compensation from Boeing for the delivery delays of its 110 787-8 and 787-9 aircraft, in the filing.