Aircraft encyclopedia · Boeing
Boeing 737-400: Specifications, Range and History
The Boeing 737-400 is the longest member of the 737 Classic family: a 3.05 m stretch of the 737-300, designed to fill the gap between the 737-300 and the 757-200. It seats 147 to 168 passengers in two classes and up to 188, with two CFM International CFM56-3 engines.
Piedmont Airlines launched the 737-400 in June 1986. It first flew on 19 February 1988 and entered service with Piedmont on 15 September 1988. Boeing built 486, and the last two went to CSA Czech Airlines on 28 February 2000. Today the 737-400 flies with charter and cargo operators, many as converted freighters.
At a glance
737-400 at a glance
Size
Dimensions
Range and speed
Performance
Weights
Weights
Equipment
Equipment and main systems
What is installed on the 737-400, which other versions exist and where the same equipment flies.
Engines
Airframe
Freighter
The 737 Classic family
Engines, weights and fuel vary by serial number. ICCJET checks the actual configuration of each aircraft.
The cabin
The 737 cabin is 3.53 m wide with six seats across in economy, 3-3. Two-class layouts seat 147 to 168; the exit limit is 188. Freighter conversions remove the cabin for a main-deck cargo door and pallets.
History
History and production
Routes
Three nonstop routes in range
Istanbul to London
Nice to Moscow
Istanbul to Dubai
Calculated great-circle distances and still-air times at 430 kn. Real flights depend on winds, payload, routing and fuel reserves. Check any route in the ICCJET Aircraft Route Planner.
FAQ
Boeing 737-400: questions
How many seats does the Boeing 737-400 have?
147 to 168 in two classes; up to 188.
What engines does the 737-400 use?
Two CFM International CFM56-3 series turbofans.
How many 737-400s were built?
486, from 1988 to 2000.
What is the range of the 737-400?
About 2,060 nm (3,820 km) in a typical configuration.
Can a 737-400 be converted to a freighter?
Yes. The 737-400SF is a converted freighter version.
What replaced the 737-400?
The 737 Next Generation, in particular the 737-800.
Charter
Charter a narrowbody airliner
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Kazakhstan
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Specifications are published reference figures. Individual aircraft vary by configuration and modifications. Page checked 17 October 2026.
