Boeing 737-300 (737-3H4) illustration in Southwest Airlines livery

Illustrative image; it may differ from the actual aircraft.

Boeing 737-300 (737-3H4)

B737-27701Ex-flota

RegistrationUSN625SW

Verified aircraft dataagainst the official civil aviation register

OperatorSouthwest Airlines

5operators

0incidents

1accidents

12logbook years

0photos

Boeing 737-300 (737-3H4) built in 1996 in Renton. Operated for Southwest Airlines, Swift Air and Eastern Air Express.

NewNearly newYoungMatureAgingOld

Old · 30 years · ≈ 99,000 flight hours (approx.)

Vuelopedia is a work in progress: it currently holds about 30% of the information we expect to have by the third quarter of 2027. Although we use only official, highly reliable sources, some aircraft data and history may still contain errors or inaccuracies. We work hard to clear every anomaly from the records using specialized verification tools.

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Technical data

ManufacturerBoeing

Engines2× CFM INTL. CFM56 SERIES

PropulsionJet

Seats148 (Y148)

First flight1996

Built inRenton, Washington (EE. UU.)

Country of registrationEstados Unidos

OwnerSwift Air Llc

MSN27701

Hex / ICAO 24-bitA82A75

VerificationIdentity verified against the official register of FAA (United States) · Oct 8, 2026

The model · Boeing 737

Figures for the 737-800 variant, the most representative of the family

Length39.5 m129 ft

Wingspan35.8 m117 ft

Height12.6 m41 ft

Range5,436 km2,935 NMWith a typical passenger load

Cruise speed834 km/h450 ktMach 0.79

Service ceiling12,500 m41,011 ftIt flies above Everest (1.4 times its height)

Maximum take-off weight79,016 kg174,200 lb

Maximum payload37,603 kg82,900 lbIts 162 passengers with baggage would weigh about 16.2 t; the rest is fuel and cargo

Typical capacity162 passengersUp to 189 in a high-density layout

Endurance6 h 31 minAt cruise speed, non-stop

With its 5,436 km range, from Dallas it could fly non-stop as far as:

LIMLima5,411 km BOGBogota3,917 km PTYTocumen3,194 km SEASeattle2,685 km JFKNew York2,222 km

Beyond its rangeLHRLondon7,620 km

The type first flew in 1967 (59 years ago) · About 10,200 units built · Production ended in 2019

Figures for the type, not for this particular aircraft: each variant and each configuration changes something. They are shown in both systems used in aviation.

The full story of the Boeing 737 Compare this aircraft

Seating layout

148Economy

148 seats in total

Airports

Where this aircraft has operated, by period · source BTS (EE. UU.)

2019–2024iAero Airways airline base

Base

Flight logbook

Year-by-year activity · source BTS (EE. UU.)

2017

Southwest Airlines · 1,633 flights during the year · base Dallas (DAL)

Main route of the year: Dallas (DAL) → Houston (HOU)

2016

Southwest Airlines · 1,781 flights during the year · base Baltimore (BWI)

Main route of the year: Houston (HOU) → Dallas (DAL)

2015

Southwest Airlines · 2,101 flights during the year · base Baltimore (BWI)

Main route of the year: San Diego (SAN) → Las Vegas (LAS)

2014

Southwest Airlines · 2,073 flights during the year · base Baltimore (BWI)

Main route of the year: Houston (HOU) → Dallas (DAL)

2013

Southwest Airlines · 1,904 flights during the year · base Baltimore (BWI)

Main route of the year: Houston (HOU) → Dallas (DAL)

39 days inactive

2012

Southwest Airlines · 2,151 flights during the year · base Dallas (DAL)

Main route of the year: Houston (HOU) → Dallas (DAL)

34 days inactive

2011

Southwest Airlines · 2,291 flights during the year · base Dallas (DAL)

Main route of the year: Houston (HOU) → Dallas (DAL)

2010

Southwest Airlines · 2,198 flights during the year · base Dallas (DAL)

Main route of the year: Houston (HOU) → Dallas (DAL)

No reliable logbook records exist for this aircraft before 2006.

Aircraft chronology

1996

Built

Assembled by Boeing in Renton, Washington (USA).

Apr 23, 1996

Delivered to Southwest Airlines

Delivered to Southwest Airlines as N625SW.

Oct 16, 2012

Accident at Las Vegas, Nevada

On October 16, 2012, the Boeing 737-3H4 aircraft (registration N625SW), operated by Southwest Airlines, was involved in an accident at Las Vegas, Nevada (United States), leaving 1 injured. Source: the NTSB (United States).

What happened

On 16 October 2012, in cruise on a Southwest Airlines flight between Oklahoma City, Oklahoma, and Las Vegas, Nevada, a flight attendant carrying out the drinks service tripped over a passenger's leg protruding into the aisle. She fell to the floor and felt pain in her left knee and foot, so she did not resume her duties for the rest of the flight. After landing she went to a local hospital, where she was diagnosed with a fractured metatarsal in the left foot. There were no mechanical faults or anomalies on the aircraft and the event was unrelated to turbulence. Source: the NTSB (United States).

Dec 31, 2018

Transferred to Swift Air

Transferred to Swift Air.

Feb 1, 2019

Transferred to Swift Air LLC

Transferred to Swift Air LLC.

Dec 1, 2019

Transferred to iAero Airways

Transferred to iAero Airways.

May 1, 2024

Transferred to Eastern 737 Asset Holdings

Transferred to Eastern 737 Asset Holdings.

Nov 8, 2024

Transferred to Eastern Air Express

Transferred to Eastern Air Express.

Operators

1996-04-23

Southwest Airlines

Registration N625SW

2018-12-31

Registration N625SW

2019-02-01

Registration N625SW

2019-02-01

Registration N625SW

2019-12-01

Registration N625SW

2024-05-01

Eastern 737 Asset Holdings

Registration N625SW · Lessor: Eastern 737 Asset Holdings

2024-11-08

Eastern Air Express

Registration N625SW

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This page was last updated on October 15, 2026

APA

Vuelopedia. (2026, October 15). Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines. Retrieved October 19, 2026, from https://vuelopedia.org/en/aircraft/B737-27701

MLA

“Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines.” Vuelopedia, Fundación Poderia, 15 Oct. 2026, vuelopedia.org/en/aircraft/B737-27701. Accessed 19 Oct. 2026.

Chicago

Vuelopedia. “Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines.” Fundación Poderia. Last modified October 15, 2026. https://vuelopedia.org/en/aircraft/B737-27701.

Harvard

Vuelopedia (2026) Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines. Available at: https://vuelopedia.org/en/aircraft/B737-27701 (Accessed: 19 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_b737_27701,
  author       = {{Vuelopedia}},
  title        = {{Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-15},
  url          = {https://vuelopedia.org/en/aircraft/B737-27701},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/B737-27701}},
  urldate      = {2026-10-19},
  note         = {Accessed 2026-10-19}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/B737-27701 |title=Boeing 737-300 (737-3H4) · N625SW · Southwest Airlines |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-15 |access-date=2026-10-19 |language=en}}