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Boeing 737-300 (737-3H4) · N623SW · Swift Air

Boeing 737-300 (737-3H4) illustration in Swift Air livery Illustrative image; it may differ from the actual aircraft.

Boeing 737-300 (737-3H4)

B737-27933Ex-flota
RegistrationUSN623SW
Verified aircraft dataagainst the official civil aviation registerWhat does this badge mean?We checked that this aircraft’s registration, serial number and model match the official civil aviation register: FAA (United States), data as of Oct 8, 2026.That makes its identity more reliable. The verification expires after 12 months: if the register stops confirming it, the badge disappears.How we verify
OperatorSwift Air
7operators
0incidents
0accidents
12logbook years
0photos

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

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.

Recent flights

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Technical data

ManufacturerBoeing
Engines2× AMA/EXPR UNKNOWN ENG
PropulsionJet
Seats137 (Y137)
First flight1996
Built inRenton, Washington (EE. UU.)
Country of registrationEstados Unidos
OwnerSwift Air Llc
MSN27933
Hex / ICAO 24-bitA82307
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 Baltimore it could fly non-stop as far as:

BOGBogota3,842 kmSEASeattle3,748 kmLAXLos Angeles3,740 kmPTYTocumen3,358 kmMEXMexico City3,071 km
Beyond its rangeLIMLima5,693 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

137Economy

137 seats in total

Airports

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

2006–2017Southwest Airlines · 12 years
Main base
BWIBaltimore7 yearsLASLas Vegas2 yearsDALDallas2 yearsPHXPhoenix
Also flew to
HOUHoustonSTLSt. LouisMCOOrlandoLAXLos AngelesMDWChicagoOAKOaklandDENDenverTPATampaSANSan DiegoMCIKansas CityBNANashvilleATLAtlantaSMFSacramentoABQAlbuquerqueSJCSan JoseSFOSan FranciscoBURBurbankPHLPhiladelphiaAUSAustinFLLFort Lauderdale
2019–2024iAero Airways airline base
Base
PHXPhoenix

Flight logbook

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

2017
Southwest Airlines · 1,452 flights during the year · base Dallas (DAL)
Main route of the year: Houston (HOU) → Dallas (DAL)
2016
Southwest Airlines · 1,988 flights during the year · base Phoenix (PHX)
Main route of the year: Los Angeles (LAX) → San Francisco (SFO)
2015
Southwest Airlines · 1,781 flights during the year · base Baltimore (BWI)
Main route of the year: Dallas (DAL) → Houston (HOU)
64 days inactive
2014
Southwest Airlines · 1,969 flights during the year · base Baltimore (BWI)
Main route of the year: Houston (HOU) → Dallas (DAL)
2013
Southwest Airlines · 1,700 flights during the year · base Baltimore (BWI)
Main route of the year: Houston (HOU) → Dallas (DAL)
67 days inactive
2012
Southwest Airlines · 2,237 flights during the year · base Baltimore (BWI)
Main route of the year: Houston (HOU) → Dallas (DAL)
2011
Southwest Airlines · 2,032 flights during the year · base Baltimore (BWI)
Main route of the year: Dallas (DAL) → Houston (HOU)
32 days inactive
2010
Southwest Airlines · 2,244 flights during the year · base Baltimore (BWI)
Main route of the year: Dallas (DAL) → Houston (HOU)
No reliable logbook records exist for this aircraft before 2006.

Aircraft chronology

1996
Built
Assembled by Boeing in Renton, Washington (USA).
Mar 25, 1996
Delivered to Southwest Airlines
Delivered to Southwest Airlines as N623SW.
Sep 6, 2019
Transferred to Swift Air
Transferred to Swift Air.
Dec 16, 2019
Transferred to iAero Airways
Transferred to iAero Airways.
Apr 22, 2024
Transferred to Eastern Air Express
Transferred to Eastern Air Express.
Mar 24, 2025
Transferred to Northrop Grumman
Transferred to Northrop Grumman.
Mar 24, 2025
Transferred to Northrop Grumman Corporation
Transferred to Northrop Grumman Corporation.
Mar 31, 2025
Transferred to Northrop Grumman Systems
Transferred to Northrop Grumman Systems.

Operators

1996-03-25
Southwest Airlines
Registration N623SW
2019-09-06
Swift Air
Registration N623SW
2019-12-16
iAero Airways
Registration N623SW
2024-04-22
Eastern Air Express
Registration N623SW
2025-03-24
Northrop Grumman
Registration N623SW
2025-03-24
Northrop Grumman Corporation
Registration N623SW
2025-03-31
Northrop Grumman Systems
Registration N623SW · Lessor: Northrop Grumman Systems

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Current position of the aircraft

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This page was last updated on October 10, 2026

APA

Vuelopedia. (2026, October 10). Boeing 737-300 (737-3H4) · N623SW · Swift Air. Retrieved October 21, 2026, from https://vuelopedia.org/en/aircraft/B737-27933

MLA

“Boeing 737-300 (737-3H4) · N623SW · Swift Air.” Vuelopedia, Fundación Poderia, 10 Oct. 2026, vuelopedia.org/en/aircraft/B737-27933. Accessed 21 Oct. 2026.

Chicago

Vuelopedia. “Boeing 737-300 (737-3H4) · N623SW · Swift Air.” Fundación Poderia. Last modified October 10, 2026. https://vuelopedia.org/en/aircraft/B737-27933.

Harvard

Vuelopedia (2026) Boeing 737-300 (737-3H4) · N623SW · Swift Air. Available at: https://vuelopedia.org/en/aircraft/B737-27933 (Accessed: 21 October 2026).

BibTeX

@misc{vuelopedia_en_aircraft_b737_27933,
  author       = {{Vuelopedia}},
  title        = {{Boeing 737-300 (737-3H4) · N623SW · Swift Air}},
  publisher    = {Fundación Poderia},
  year         = {2026},
  date         = {2026-10-10},
  url          = {https://vuelopedia.org/en/aircraft/B737-27933},
  howpublished = {\url{https://vuelopedia.org/en/aircraft/B737-27933}},
  urldate      = {2026-10-21},
  note         = {Accessed 2026-10-21}
}

Wikipedia

{{cite web |url=https://vuelopedia.org/en/aircraft/B737-27933 |title=Boeing 737-300 (737-3H4) · N623SW · Swift Air |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-10 |access-date=2026-10-21 |language=en}}