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
- Denver to PhoenixDEN to PHX7 flights
- San Jose to PhoenixSJC to PHX6 flights
- Dallas to New OrleansDAL to MSY5 flights
- Nashville to ChicagoBNA to MDW5 flights
- Chicago to New YorkMDW to LGA4 flights
- Phoenix to DenverPHX to DEN4 flights
- Las Vegas to SacramentoLAS to SMF4 flights
- Baltimore to ChicagoBWI to MDW4 flights
- Orlando to BaltimoreMCO to BWI4 flights
- Santa Ana to PhoenixSNA to PHX3 flights
Its most frequent routes over the period. Each links to that route's punctuality page.
Month by month
See the figures
| Month | On time | Cancelled | Flights |
|---|---|---|---|
| August 2025 | 80% | 1.3% | 154 |
| September 2025 | 80% | 0% | 106 |
| October 2025 | 67% | 0% | 143 |
| November 2025 | 74% | 2.8% | 144 |
| December 2025 | 79% | 0% | 158 |
| January 2026 | 82% | 2.9% | 136 |
| February 2026 | 86% | 0.8% | 126 |
| March 2026 | 73% | 1.2% | 170 |
| April 2026 | 63% | 0% | 153 |
| May 2026 | 74% | 0% | 164 |
| June 2026 | 61% | 0.6% | 161 |
| July 2026 | 77% | 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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