What type of aircraft is N231WN?

N231WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.

Which airline flies N231WN?

Southwest Airlines (WN) flew N231WN most recently, according to US Department of Transportation flight records for July 2026.

Where does N231WN fly?

Its most frequent route in the last 12 months was San Jose to Burbank (6 flights). It flew 1,688 flights in total, about 153 a month.

N231WN was built in 2006, so it is 20 years old.

Is N231WN usually on time?

78% 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

N231WN

Boeing 737-7H4, Southwest Airlines

N231WN is a Boeing 737-7H4 flown by Southwest Airlines, built in 2006. From August 2025 to July 2026 it flew 1,688 flights, most often San Jose to Burbank, and 78% arrived within 15 minutes of schedule.

1,688

flights in 12 months

78%

on time (within 15 min)

airports

20 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 N231WN flies

San Jose to BurbankSJC to BUR6 flights
Burbank to SacramentoBUR to SMF5 flights
Santa Ana to San JoseSNA to SJC4 flights
Reno to Las VegasRNO to LAS4 flights
Las Vegas to BurbankLAS to BUR4 flights
Albuquerque to DenverABQ to DEN4 flights
Houston to HarlingenHOU to HRL4 flights
Houston to San AntonioHOU to SAT4 flights
Houston to DallasHOU to DAL4 flights
San Diego to San JoseSAN to SJC4 flights

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

Month by month

Share of N231WN 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	82%	0.6%	168
September 2025	84%	0.6%	163
October 2025	73%	0%	124
December 2025	70%	2.3%	131
January 2026	90%	4%	125
February 2026	82%	0.8%	122
March 2026	78%	2.3%	173
April 2026	79%	0%	146
May 2026	78%	1.2%	170
June 2026	72%	5%	180
July 2026	75%	1.6%	186

Questions and answers

What type of aircraft is N231WN?: N231WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N231WN?: Southwest Airlines (WN) flew N231WN most recently, according to US Department of Transportation flight records for July 2026.
Where does N231WN fly?: Its most frequent route in the last 12 months was San Jose to Burbank (6 flights). It flew 1,688 flights in total, about 153 a month.
How old is N231WN?: N231WN was built in 2006, so it is 20 years old.
Is N231WN usually on time?: 78% 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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