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US aircraft · WN

N8643A

Boeing 737-8H4, Southwest Airlines

N8643A is a Boeing 737-8H4 flown by Southwest Airlines, built in 2014. From August 2025 to July 2026 it flew 1,801 flights, most often Denver to Las Vegas, and 77% arrived within 15 minutes of schedule.

1,801
flights in 12 months
77%
on time (within 15 min)
12
airports
12 yr
age

August 2025 to July 2026. Flights from US Bureau of Transportation Statistics on-time records (public domain); aircraft details from the FAA aircraft register.

Where N8643A flies

  1. Denver to Las Vegas6 flights
  2. New York to Dallas5 flights
  3. Denver to Kansas City4 flights
  4. Orlando to Baltimore4 flights
  5. Ontario to Las Vegas3 flights
  6. Las Vegas to Denver3 flights
  7. Phoenix to Denver3 flights
  8. Washington to Dallas3 flights
  9. Phoenix to San Jose3 flights
  10. Dallas to Houston3 flights

Its most frequent routes over the period. Each links to that route's punctuality page.

Month by month

Share of N8643A flights arriving within 15 minutes of schedule, by month. Green is the best month, orange the worst.
See the figures
MonthOn timeCancelledFlights
August 202575%0%162
September 202576%0.7%137
October 202584%0%171
November 202586%2.6%154
December 202575%0.7%147
January 202684%0%144
February 202683%0%127
March 202667%1.7%121
April 202681%0%159
May 202673%0%162
June 202667%0.6%154
July 202668%0%163

Questions and answers

What type of aircraft is N8643A?
N8643A is a Boeing 737-8H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N8643A?
Southwest Airlines (WN) flew N8643A most recently, according to US Department of Transportation flight records for July 2026.
Where does N8643A fly?
Its most frequent route in the last 12 months was Denver to Las Vegas (6 flights). It flew 1,801 flights in total, about 150 a month.
How old is N8643A?
N8643A was built in 2014, so it is 12 years old.
Is N8643A usually on time?
77% of its flights from August 2025 to July 2026 arrived within 15 minutes of schedule. Punctuality depends far more on the route and the airline's day than on the aircraft itself.

See how Southwest Airlines compares with every other US airline.

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