What type of aircraft is N8721J?

N8721J is a Boeing 737-8 with 175 seats, according to the FAA aircraft register.

Which airline flies N8721J?

Southwest Airlines (WN) flew N8721J most recently, according to US Department of Transportation flight records for July 2026.

Where does N8721J fly?

Its most frequent route in the last 12 months was Honolulu to Lihue (13 flights). It flew 1,595 flights in total, about 133 a month.

N8721J was built in 2018, so it is 8 years old.

Is N8721J 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

N8721J

Boeing 737-8, Southwest Airlines

N8721J is a Boeing 737-8 flown by Southwest Airlines, built in 2018. From August 2025 to July 2026 it flew 1,595 flights, most often Honolulu to Lihue, and 77% arrived within 15 minutes of schedule.

1,595

flights in 12 months

77%

on time (within 15 min)

airports

8 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 N8721J flies

Honolulu to LihueHNL to LIH13 flights
Lihue to HonoluluLIH to HNL13 flights
Honolulu to HiloHNL to ITO12 flights
Hilo to HonoluluITO to HNL12 flights
Houston to ChicagoHOU to MDW6 flights
Chicago to PhoenixMDW to PHX6 flights
Honolulu to KonaHNL to KOA6 flights
Kona to HonoluluKOA to HNL6 flights
Nashville to Las VegasBNA to LAS5 flights
Phoenix to ChicagoPHX to MDW5 flights

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

Month by month

Share of N8721J 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%	0.7%	135
September 2025	79%	0%	119
October 2025	86%	0%	148
November 2025	84%	2.6%	152
December 2025	71%	0.7%	139
January 2026	84%	1.7%	118
February 2026	75%	0.8%	120
March 2026	73%	5.3%	113
April 2026	78%	0.8%	124
May 2026	80%	0%	141
June 2026	57%	2.2%	139
July 2026	71%	0%	147

Questions and answers

What type of aircraft is N8721J?: N8721J is a Boeing 737-8 with 175 seats, according to the FAA aircraft register.
Which airline flies N8721J?: Southwest Airlines (WN) flew N8721J most recently, according to US Department of Transportation flight records for July 2026.
Where does N8721J fly?: Its most frequent route in the last 12 months was Honolulu to Lihue (13 flights). It flew 1,595 flights in total, about 133 a month.
How old is N8721J?: N8721J was built in 2018, so it is 8 years old.
Is N8721J 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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