What type of aircraft is N437WN?

N437WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.

Which airline flies N437WN?

Southwest Airlines (WN) flew N437WN most recently, according to US Department of Transportation flight records for July 2026.

Where does N437WN fly?

Its most frequent route in the last 12 months was Burbank to Las Vegas (6 flights). It flew 1,891 flights in total, about 158 a month.

N437WN was built in 2003, so it is 23 years old.

Is N437WN usually on time?

72% 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

N437WN

Boeing 737-7H4, Southwest Airlines

N437WN is a Boeing 737-7H4 flown by Southwest Airlines, built in 2003. From August 2025 to July 2026 it flew 1,891 flights, most often Burbank to Las Vegas, and 72% arrived within 15 minutes of schedule.

1,891

flights in 12 months

72%

on time (within 15 min)

airports

23 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 N437WN flies

Burbank to Las VegasBUR to LAS6 flights
San Jose to Las VegasSJC to LAS6 flights
San Jose to San DiegoSJC to SAN5 flights
San Diego to San JoseSAN to SJC5 flights
Raleigh-durham to BaltimoreRDU to BWI5 flights
Santa Ana to DenverSNA to DEN4 flights
Baltimore to SarasotaBWI to SRQ4 flights
Washington to ChicagoDCA to MDW4 flights
San Antonio to DallasSAT to DAL4 flights
Las Vegas to ChicagoLAS to MDW3 flights

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

Month by month

Share of N437WN 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	61%	2.1%	142
September 2025	82%	0%	160
October 2025	65%	0.6%	166
November 2025	83%	0%	166
December 2025	67%	0%	165
January 2026	85%	2.8%	143
February 2026	85%	1.4%	142
March 2026	71%	1.2%	170
April 2026	65%	1.3%	160
May 2026	66%	0%	154
June 2026	63%	1.9%	156
July 2026	70%	1.8%	167

Questions and answers

What type of aircraft is N437WN?: N437WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N437WN?: Southwest Airlines (WN) flew N437WN most recently, according to US Department of Transportation flight records for July 2026.
Where does N437WN fly?: Its most frequent route in the last 12 months was Burbank to Las Vegas (6 flights). It flew 1,891 flights in total, about 158 a month.
How old is N437WN?: N437WN was built in 2003, so it is 23 years old.
Is N437WN usually on time?: 72% 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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