World's Most Produced Jetliner Over 11,500 Delivered 4 Generations: Original • Classic • NG • MAX

Boeing 737 Family

The Boeing 737 is the undisputed backbone of global short-to-medium haul commercial aviation. Spanning over five decades and four distinct generations—Original (-100/-200), Classic (-300/-400/-500), Next-Generation (-600/-700/-800/-900), and MAX (-7/-8/-9/-10)—the 737 continues to connect cities across every inhabited continent.

B737-200

Introduced in the late 1960s, the 737-200 is the original production Boeing 737 model designed for short-to-medium-haul routes. It features twin wing-mounted Pratt & Whitney JT8D engines and became known for its rugged reliability and gravel-runway kit capability in remote regions.

Specs
ICAO code	B732
Engine type	Pratt & Whitney JT8D-9 / -17
Length	102 ft / 31.9 m
Wingspan	94.9 ft / 28.88 m
Height	34.6 ft / 10.55 m
MTOW	107,000 lbs / 48.5 tons
Range	1,700 nm / 3,150 km
Max pax capacity	130

B737-300

The 737-300 launched the Classic series in the 1980s with high-bypass CFM56 turbofan engines, offering dramatically better fuel efficiency, extended range, and quieter operations with its iconic flattened nacelle intake.

Specs
ICAO code	B733
Engine type	CFM International CFM56-3
Length	109.6 ft / 33.41 m
Wingspan	94.8 ft / 28.9 m
Height	36.3 ft / 11.6 m
MTOW	139,500 lbs / 63.3 tons
Range	1,600 nm / 2,960 km
Max pax capacity	140

B737-400

The 737-400 is the stretched flagship of the Classic family, increasing passenger capacity to 159 seats. It became a powerhouse for chartered operators and mainline domestic trunk routes.

Specs
ICAO code	B734
Engine type	CFM International CFM56-3C
Length	119.6 ft / 36.45 m
Wingspan	94.8 ft / 28.9 m
Height	36.3 ft / 11.6 m
MTOW	150,000 lbs / 68.0 tons
Range	2,100 nm / 3,890 km
Max pax capacity	159

B737-500

The 737-500 is the compact Classic model designed as a direct modern replacement for the 737-200. Accommodating around 110–122 passengers, it was ideal for long, thin regional routes.

Specs
ICAO code	B735
Engine type	CFM International CFM56-3B
Length	101.8 ft / 31.3 m
Wingspan	94.8 ft / 28.9 m
Height	36.3 ft / 11.6 m
MTOW	136,000 lbs / 61.7 tons
Range	1,600 nm / 2,960 km
Max pax capacity	122

B737-600

The 737-600 was the smallest member of the Next-Generation (NG) series, introduced as the NG successor to the -500 with Honeywell glass cockpit avionics and CFM56-7B engines.

Specs
ICAO code	B736
Engine type	CFM International CFM56-7B
Length	102.5 ft / 31.24 m
Wingspan	112.6 ft / 34.32 m
Height	41.7 ft / 12.71 m
MTOW	144,500 lbs / 65.5 tons
Range	3,200 nm / 5,930 km
Max pax capacity	132

B737-700

The 737-700 was the launch model of the Next-Generation family, providing a 140-seat layout with transcontinental North American range, blended winglet capability, and class-leading dispatch reliability.

Specs
ICAO code	B737
Engine type	CFM International CFM56-7B
Length	110.3 ft / 33.62 m
Wingspan	112.6 ft / 34.32 m
Height	41.6 ft / 12.68 m
MTOW	154,500 lbs / 70.0 tons
Range	3,010 nm / 5,570 km
Max pax capacity	149

B737-800

Boeing 737-800

The 737-800 is the global commercial triumph of the Next-Generation family, delivering unmatched operating economics for budget carriers and network giants alike with up to 189 seats.

Specs
ICAO code	B738
Engine type	CFM International CFM56-7B
Length	129.5 ft / 39.47 m
Wingspan	117.4 ft / 35.79 m (with Winglets)
Height	41.4 ft / 12.62 m
MTOW	174,200 lbs / 79.0 tons
Range	2,935 nm / 5,436 km
Max pax capacity	189

B737-900

The 737-900 and 900ER (Extended Range) represent the longest and highest-capacity NG variants, seating up to 220 passengers with auxiliary fuel tanks and additional exit doors.

Specs
ICAO code	B739
Engine type	CFM International CFM56-7B
Length	138.2 ft / 42.12 m
Wingspan	117.4 ft / 35.79 m (with Winglets)
Height	41.4 ft / 12.62 m
MTOW	187,700 lbs / 85.1 tons
Range	2,950 nm / 5,460 km
Max pax capacity	220

B737-MAX-7

B737 MAX 7

The MAX 7 is the longest-range member of the 737 MAX family, designed with CFM LEAP-1B engines and Advanced Technology winglets to achieve 3,800 nm range for high-altitude or remote island missions.

Specs
ICAO code	B37M
Engine type	CFM International LEAP-1B
Length	116.7 ft / 35.57 m
Wingspan	117.8 ft / 35.91 m
Height	41.0 ft / 12.50 m
MTOW	177,000 lbs / 80.3 tons
Range	3,800 nm / 7,040 km
Max pax capacity	172

B737-MAX-8

The 737 MAX 8 is the core centerpiece of Boeing's fourth-generation narrowbody lineup, delivering a 14% fuel consumption reduction, lower carbon emissions, and modern Boeing Sky Interior.

Specs
ICAO code	B38M
Engine type	CFM International LEAP-1B
Length	129.7 ft / 39.53 m
Wingspan	117.8 ft / 35.91 m
Height	40.3 ft / 12.28 m
MTOW	181,200 lbs / 82.2 tons
Range	3,500 nm / 6,480 km
Max pax capacity	210

B737-MAX-9

The MAX 9 provides extended passenger capacity for up to 220 passengers on high-density domestic and medium-haul transoceanic city pairs.

Specs
ICAO code	B39M
Engine type	CFM International LEAP-1B
Length	138.3 ft / 42.15 m
Wingspan	117.8 ft / 35.91 m
Height	40.8 ft / 12.44 m
MTOW	194,700 lbs / 88.3 tons
Range	3,300 nm / 6,110 km
Max pax capacity	220

Boeing 737 Generational Comparison Matrix

Specification	737-200 (Original)	737-400 (Classic)	737-800 (Next Gen)	737 MAX 8
Typical Passenger Capacity	102–130	146–159	162–189	162–210
Overall Length	31.90 m / 102 ft 0 in	36.45 m / 119 ft 6 in	39.47 m / 129 ft 6 in	39.53 m / 129 ft 8 in
Wingspan	28.88 m / 94 ft 9 in	28.90 m / 94 ft 8 in	35.79 m / 117 ft 5 in	35.91 m / 117 ft 10 in
Tail Height	10.55 m / 34 ft 7 in	11.60 m / 36 ft 3 in	12.62 m / 41 ft 5 in	12.28 m / 40 ft 4 in
Max Takeoff Weight (MTOW)	48,535 kg / 107,000 lbs	68,000 kg / 150,000 lbs	79,015 kg / 174,200 lbs	82,190 kg / 181,200 lbs
Max Range (Full Payload)	1,700 nm / 3,150 km	2,100 nm / 3,890 km	2,935 nm / 5,436 km	3,500 nm / 6,480 km
Engines (2x)	Pratt & Whitney JT8D-9	CFM International CFM56-3C	CFM International CFM56-7B	CFM International LEAP-1B
Cruise Speed	Mach 0.74 (790 km/h)	Mach 0.74 (790 km/h)	Mach 0.785 (838 km/h)	Mach 0.79 (842 km/h)

Program History & Milestone Timeline

April 9, 1967

First Flight of the Boeing 737-100

The initial 737-100 prototype made its maiden flight from Boeing Field in Seattle, piloted by Brien Wygle and Lew Wallick.

February 10, 1968

Entry into Service with Lufthansa

Lufthansa became the launch customer to inaugurate scheduled revenue service with the 737-100, marking the first time a non-US carrier launched a Boeing aircraft.

February 24, 1984

The 737 Classic (-300) Maiden Flight

Featuring revolutionary high-bypass CFM56 turbofan engines requiring a flattened bottom nacelle intake, the Classic family set modern twinjet efficiency benchmarks.

February 9, 1997

737 Next-Generation (NG) Program Launch

The 737-700 took to the skies, introducing a 25% larger wing area, advanced glass cockpits, blended winglets, and unmatched reliability across the -600/-700/-800/-900 series.

May 22, 2017

737 MAX Commercial Introduction

Malindo Air operated the first commercial passenger flight of the 737 MAX 8, powered by CFM LEAP-1B engines and dual-feather split winglets.

Explore the Boeing Commercial Airliner Fleet

707 Jet Age Pioneer 717 100-Seat T-Tail 727 Trijet Workhorse 737 Family Classic / NG / MAX 747 Queen of the Skies 757 Flying Pencil 767 Twin-Aisle Pioneer 777 Triple Seven 787 Dreamliner

Explore Commercial Airliner Manufacturers

Airbus European Aerospace Leader Boeing American Jet Pioneer ATR Regional Turboprops Bombardier CRJ Regional Jets Embraer E-Jets & E-Jets E2 McDonnell Douglas Historical Jet Giant BAE Systems Defense & Aerospace

Explore Civilian Flight Sectors

Airliners Commercial Passenger Jets Corporate Jets Executive Business Aviation General Aviation Private & Utility Aircraft Helicopters Civilian Rotary Flight Special Mission Aerial Firefighting & Utility