Boeing

Boeing 737 MAX 9

7M9 B39M In Production

A stretched member of the 737 MAX family, the Boeing 737 MAX 9 is positioned as the successor to the 737-900ER. It seats about 178 passengers in two classes and up to 220 single-class, with two CFM LEAP-1B turbofans giving a range near 6,510 km at 842 km/h. First flown in 2017, the aircraft measures 42.2 metres long with a 35.9-metre wingspan and a maximum takeoff weight of 88,314 kg. In January 2024 a MAX 9 operated by Alaska Airlines lost a cabin door plug in flight, prompting a temporary grounding of the variant and intensified inspections of the type. It remains in production as the larger of Boeing's principal single-aisle models.

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Dimensions

Length: 42.16 m
Wingspan: 35.92 m
Height: 12.30 m
Cabin Width: 3.54 m

Performance

Range: 6,510 km
Cruise Speed: 842 km/h
Max Speed: 876 km/h
Service Ceiling: 12,500 m
Category: long-haul

Capacity

Typical Seats: 178
Max Seats: 220
Cargo Volume: 30.00 m³
Size: narrow-body

Engines

Count: 2
Type: Turbofan
Model: CFM LEAP-1B

Airlines (6)

United Airlines 35 Alaska Airlines 14 Copa Airlines 10 Icelandair 1 American Airlines 1 Turkish Airlines 1

Family Variants

Boeing 737-200 Boeing 737-300 Boeing 737-400 Boeing 737-500 Boeing 737-600 Boeing 737-700 Boeing 737-800 Boeing 737-900ER Boeing 737 MAX 10 Boeing 737 MAX 7 Boeing 737 MAX 8

Engine Profiles

CFM International LEAP-1B

About Boeing 737 MAX 9

Stretched MAX variant replacing the 737-900ER. Gained significant attention after the January 2024 Alaska Airlines door plug blowout incident that led to temporary grounding and enhanced inspections.

Frequently Asked Questions

The Boeing 737 MAX 9 typically seats 178 passengers in a standard two-class configuration. In a high-density single-class layout, it can carry up to 220 passengers. The MAX 9 is positioned as the replacement for the 737-900ER, offering a similar passenger capacity with significantly improved fuel efficiency and range thanks to the LEAP-1B engines and split-tip winglets.

The Boeing 737 MAX 9 has a maximum range of approximately 6,570 km (3,550 nautical miles) with a full passenger load. This represents an improvement of about 650 km over the 737-900ER it replaces. The increased range, combined with the CFM LEAP-1B engines that burn approximately 14% less fuel than the CFM56, opens new nonstop route opportunities for airlines on medium-haul sectors.

The 737 MAX 9 features the Boeing Sky Interior with sculpted sidewalls, modern LED ambient lighting, and larger overhead bins that can accommodate 50% more carry-on bags than the 737 NG. The cabin width is 3.54 m with a standard 3-3 economy arrangement. Many airlines offer a premium domestic first-class cabin with extra legroom. The MAX 9 also features larger windows than the 737 NG, providing improved natural light.

Alaska Airlines is the largest 737 MAX 9 operator in the United States, having ordered the type as a replacement for its 737-900ER fleet. Lion Air Group in Indonesia, Copa Airlines in Panama, and Turkish Airlines are also significant MAX 9 customers. United Airlines operates the MAX 9 alongside the MAX 8 on its domestic and short-haul international network.

The A321neo outsells the 737 MAX 9 significantly, primarily because it offers higher passenger capacity (180-220 seats vs 178-220) and a wider cabin. The A321neo also has extended-range variants (LR and XLR) that can operate transatlantic routes, a capability the MAX 9 does not match. The MAX 9 offers competitive fuel efficiency and lower list price, making it attractive for airlines focused on domestic and short-haul operations where the additional range of the A321LR is unnecessary.

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