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Boeing 737

The Boeing 737 is an American twin-engine, narrow-body jet airliner produced by Boeing Commercial Airplanes.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Boeing 737 is an American twin-engine, narrow-body jet airliner produced by Boeing Commercial Airplanes. First flown in 1967 and introduced into service in 1968, it has become one of the most widely used and best-selling commercial aircraft families in aviation history. The aircraft is widely operated by Canadian airlines and has been important on domestic and transborder routes, especially for short- and medium-haul service across Canada.

Development and entry into service

The Boeing 737 first flew in April 1967 and entered airline service in February 1968 with Lufthansa. It was designed as a smaller twin-engine companion to Boeing’s larger 707 and 727 aircraft.

Design and variants

The 737 is a narrow-body, twin-engine jetliner built in several major generations. Later versions increased capacity, range, and engine efficiency, culminating in the 737 MAX family.

Operational use

Airlines use the Boeing 737 extensively for short- and medium-haul routes. Its popularity comes from its versatility, commonality across variants, and suitability for high-frequency service. In Canada, the type has been particularly important on domestic and transborder routes.

Production and commercial significance

The 737 has had one of the longest production runs of any jetliner and is among the best-selling commercial aircraft ever built. Production has continued through multiple generations, including the 737 Next Generation and 737 MAX families.

Key facts

  • The Boeing 737 is a twin-engine narrow-body airliner produced by Boeing.
  • First flight occurred on April 9, 1967; it entered service on February 10, 1968.
  • The 737 family includes several generations: Classic, Next Generation, and MAX.
  • It is one of the most widely used and best-selling commercial aircraft in aviation history.
  • It is produced at Boeing’s Renton factory in Washington.
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Canadian context

The Boeing 737 is widely operated by Canadian airlines and has been important on domestic and transborder routes, especially for short- and medium-haul service across Canada.

Frequently asked questions

What is the Boeing 737?
The Boeing 737 is a twin-engine, narrow-body commercial jet airliner built by Boeing for short- and medium-haul flights.
When did the Boeing 737 first fly?
The first Boeing 737 flight took place on April 9, 1967.
When did it enter service?
The Boeing 737 entered commercial service on February 10, 1968, with Lufthansa.
Where is the Boeing 737 produced?
Boeing produces the 737 at its Renton factory in Washington, United States.
How many passengers can it carry?
Depending on the variant and cabin layout, the 737 typically carries about 138 to 230 passengers.
Why is the Boeing 737 significant?
It is one of the most successful and widely used airliners in commercial aviation history, with a very long production run and multiple generations.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Boeing_737
    Supports: Basic description, aircraft type, production location, capacity and range overview.
  2. Simple Flying — https://simpleflying.com/boeing-737/
    Supports: First flight date and entry into service.
  3. FlightGlobal — https://www.flightglobal.com/boeing-737-aircraft-profile/76702.article
    Supports: Historical significance and status as a best-selling commercial airliner.
  4. The Museum of Flight — https://www.museumofflight.org/exhibits-and-events/aircraft/boeing-737-130
    Supports: General significance of the 737 family and its reputation as a workhorse aircraft.