What type of aircraft is N8509U?

N8509U is a Boeing 737-800 with 175 seats, according to the FAA aircraft register.

Which airline flies N8509U?

Southwest Airlines (WN) flew N8509U most recently, according to US Department of Transportation flight records for July 2026.

Where does N8509U fly?

Its most frequent route in the last 12 months was Denver to Dallas (7 flights). It flew 1,647 flights in total, about 137 a month.

N8509U was built in 2016, so it is 10 years old.

Is N8509U 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.

US aircraft · WN

N8509U

Boeing 737-800, Southwest Airlines

N8509U is a Boeing 737-800 flown by Southwest Airlines, built in 2016. From August 2025 to July 2026 it flew 1,647 flights, most often Denver to Dallas, and 77% arrived within 15 minutes of schedule.

1,647

flights in 12 months

77%

on time (within 15 min)

airports

10 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 N8509U flies

Denver to DallasDEN to DAL7 flights
Nashville to HoustonBNA to HOU5 flights
Dallas to HoustonDAL to HOU4 flights
Nashville to DenverBNA to DEN4 flights
Baltimore to Manchester NHBWI to MHT3 flights
Orlando to St. LouisMCO to STL3 flights
San Francisco to San DiegoSFO to SAN3 flights
Phoenix to Oklahoma CityPHX to OKC3 flights
Nashville to BaltimoreBNA to BWI3 flights
St. Louis to DenverSTL to DEN3 flights

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

Month by month

Share of N8509U 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	90%	1.3%	157
September 2025	82%	0%	132
October 2025	87%	0%	94
November 2025	83%	0%	60
December 2025	76%	0.7%	141
January 2026	92%	1.4%	138
February 2026	77%	0%	128
March 2026	68%	4.3%	164
April 2026	77%	1.3%	157
May 2026	79%	0%	152
June 2026	61%	0%	168
July 2026	63%	2.6%	156

Questions and answers

What type of aircraft is N8509U?: N8509U is a Boeing 737-800 with 175 seats, according to the FAA aircraft register.
Which airline flies N8509U?: Southwest Airlines (WN) flew N8509U most recently, according to US Department of Transportation flight records for July 2026.
Where does N8509U fly?: Its most frequent route in the last 12 months was Denver to Dallas (7 flights). It flew 1,647 flights in total, about 137 a month.
How old is N8509U?: N8509U was built in 2016, so it is 10 years old.
Is N8509U 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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