How the 737-400 fits into the 737 story
737-400 is a partially retired member of the Boeing 737 family, known for the stretched Classic branch developed for higher-capacity short-haul work.
The 737-400 earned a distinct place in the Boeing 737 family story through its engines, seating, range, service entry, and the missions operators chose it to fly.
Service entry
1988
Seating
146 to 188
Range
2,075 nm
Variant history
Why it branches from the family
The 737-400 stands out within the Boeing 737 family because it captures the stretched Classic branch developed for higher-capacity short-haul work.
It entered service in 1988 with CFM56-3 engines, typical seating for 146 to 188, and published range of about 2,075 nautical miles.
Fact rows
Reference snapshot
- ICAO designator
- B734
- Designator references
- Engines
- CFM56-3
- Type data
- Service entry
- 1988
- Operator records
- Typical seating
- 146 to 188
- Operator layouts
- Range
- 2,075 nm
- Planning data
Return to the family page
Return to the family history for the wider program story, then compare this version with the other models that carried the design into different markets and missions.