What type of aircraft is N251WN?

N251WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.

Which airline flies N251WN?

Southwest Airlines (WN) flew N251WN most recently, according to US Department of Transportation flight records for June 2026.

Where does N251WN fly?

Its most frequent route in the last 12 months was San Jose to Burbank (9 flights). It flew 1,714 flights in total, about 156 a month.

N251WN was built in 2006, so it is 20 years old.

Is N251WN usually on time?

81% of its flights from August 2025 to June 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

N251WN

Boeing 737-7H4, Southwest Airlines

N251WN is a Boeing 737-7H4 flown by Southwest Airlines, built in 2006. From August 2025 to June 2026 it flew 1,714 flights, most often San Jose to Burbank, and 81% arrived within 15 minutes of schedule.

1,714

flights in 12 months

81%

on time (within 15 min)

airports

20 yr

age

August 2025 to June 2026. Flights from US Bureau of Transportation Statistics on-time records (public domain); aircraft details from the FAA aircraft register.

Where N251WN flies

San Jose to BurbankSJC to BUR9 flights
Las Vegas to Santa AnaLAS to SNA7 flights
Sacramento to BurbankSMF to BUR6 flights
Burbank to Las VegasBUR to LAS6 flights
Dallas to HoustonDAL to HOU6 flights
Oakland to Santa AnaOAK to SNA6 flights
Santa Ana to SacramentoSNA to SMF6 flights
San Jose to San DiegoSJC to SAN5 flights
San Diego to OaklandSAN to OAK5 flights
San Jose to Santa AnaSJC to SNA5 flights

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

Month by month

Share of N251WN 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	79%	0%	163
September 2025	87%	0%	157
October 2025	73%	0.6%	173
November 2025	86%	0.6%	154
December 2025	82%	1.1%	176
January 2026	90%	0.7%	152
February 2026	84%	0.7%	134
March 2026	81%	3%	167
April 2026	82%	0%	163
May 2026	69%	0%	177
June 2026	76%	0%	98

Questions and answers

What type of aircraft is N251WN?: N251WN is a Boeing 737-7H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N251WN?: Southwest Airlines (WN) flew N251WN most recently, according to US Department of Transportation flight records for June 2026.
Where does N251WN fly?: Its most frequent route in the last 12 months was San Jose to Burbank (9 flights). It flew 1,714 flights in total, about 156 a month.
How old is N251WN?: N251WN was built in 2006, so it is 20 years old.
Is N251WN usually on time?: 81% of its flights from August 2025 to June 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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