What type of aircraft is N8558Z?

N8558Z is a Boeing 737-800 with 175 seats, according to the FAA aircraft register.

Which airline flies N8558Z?

Southwest Airlines (WN) flew N8558Z most recently, according to US Department of Transportation flight records for July 2026.

Where does N8558Z fly?

Its most frequent route in the last 12 months was Chicago to Phoenix (6 flights). It flew 1,812 flights in total, about 151 a month.

N8558Z was built in 2017, so it is 9 years old.

Is N8558Z usually on time?

76% 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.

US aircraft · WN

N8558Z

Boeing 737-800, Southwest Airlines

N8558Z is a Boeing 737-800 flown by Southwest Airlines, built in 2017. From August 2025 to July 2026 it flew 1,812 flights, most often Chicago to Phoenix, and 76% arrived within 15 minutes of schedule.

1,812

flights in 12 months

76%

on time (within 15 min)

airports

9 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 N8558Z flies

Chicago to PhoenixMDW to PHX6 flights
Pittsburgh to OrlandoPIT to MCO5 flights
St. Louis to ChicagoSTL to MDW5 flights
Orlando to ChicagoMCO to MDW4 flights
Las Vegas to Kansas CityLAS to MCI4 flights
Orlando to Kansas CityMCO to MCI4 flights
Houston to MemphisHOU to MEM3 flights
Orlando to San AntonioMCO to SAT3 flights
Memphis to ChicagoMEM to MDW3 flights
Oklahoma City to HoustonOKC to HOU3 flights

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

Month by month

Share of N8558Z flights arriving within 15 minutes of schedule, by month. Green is the best month, orange the worst.

See the figures

Month	On time	Cancelled	Flights
August 2025	73%	0%	142
September 2025	91%	0%	143
October 2025	72%	0.6%	164
November 2025	85%	1.4%	147
December 2025	77%	0%	145
January 2026	90%	3.3%	152
February 2026	86%	2.8%	142
March 2026	68%	1.3%	155
April 2026	76%	0%	170
May 2026	61%	0%	113
June 2026	68%	0%	167
July 2026	67%	1.7%	172

Questions and answers

What type of aircraft is N8558Z?: N8558Z is a Boeing 737-800 with 175 seats, according to the FAA aircraft register.
Which airline flies N8558Z?: Southwest Airlines (WN) flew N8558Z most recently, according to US Department of Transportation flight records for July 2026.
Where does N8558Z fly?: Its most frequent route in the last 12 months was Chicago to Phoenix (6 flights). It flew 1,812 flights in total, about 151 a month.
How old is N8558Z?: N8558Z was built in 2017, so it is 9 years old.
Is N8558Z usually on time?: 76% 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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