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US aircraft · WN

N8821S

Boeing 737-8, Southwest Airlines

N8821S is a Boeing 737-8 flown by Southwest Airlines, built in 2022. From August 2025 to July 2026 it flew 1,781 flights, most often Denver to Phoenix, and 74% arrived within 15 minutes of schedule.

1,781
flights in 12 months
74%
on time (within 15 min)
13
airports
4 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 N8821S flies

  1. Denver to Phoenix7 flights
  2. San Jose to Phoenix6 flights
  3. Dallas to New Orleans5 flights
  4. Nashville to Chicago5 flights
  5. Chicago to New York4 flights
  6. Phoenix to Denver4 flights
  7. Las Vegas to Sacramento4 flights
  8. Baltimore to Chicago4 flights
  9. Orlando to Baltimore4 flights
  10. Santa Ana to Phoenix3 flights

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

Month by month

Share of N8821S flights arriving within 15 minutes of schedule, by month. Green is the best month, orange the worst.
See the figures
MonthOn timeCancelledFlights
August 202580%1.3%154
September 202580%0%106
October 202567%0%143
November 202574%2.8%144
December 202579%0%158
January 202682%2.9%136
February 202686%0.8%126
March 202673%1.2%170
April 202663%0%153
May 202674%0%164
June 202661%0.6%161
July 202677%2.4%166

Questions and answers

What type of aircraft is N8821S?
N8821S is a Boeing 737-8 with 175 seats, according to the FAA aircraft register.
Which airline flies N8821S?
Southwest Airlines (WN) flew N8821S most recently, according to US Department of Transportation flight records for July 2026.
Where does N8821S fly?
Its most frequent route in the last 12 months was Denver to Phoenix (7 flights). It flew 1,781 flights in total, about 148 a month.
How old is N8821S?
N8821S was built in 2022, so it is 4 years old.
Is N8821S usually on time?
74% 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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