What type of aircraft is N8641B?

N8641B is a Boeing 737-8H4 with 143 seats, according to the FAA aircraft register.

Which airline flies N8641B?

Southwest Airlines (WN) flew N8641B most recently, according to US Department of Transportation flight records for July 2026.

Where does N8641B fly?

Its most frequent route in the last 12 months was Houston to Baltimore (5 flights). It flew 1,530 flights in total, about 139 a month.

N8641B was built in 2014, so it is 12 years old.

Is N8641B 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

N8641B

Boeing 737-8H4, Southwest Airlines

N8641B is a Boeing 737-8H4 flown by Southwest Airlines, built in 2014. From August 2025 to July 2026 it flew 1,530 flights, most often Houston to Baltimore, and 77% arrived within 15 minutes of schedule.

1,530

flights in 12 months

77%

on time (within 15 min)

airports

12 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 N8641B flies

Houston to BaltimoreHOU to BWI5 flights
Nashville to Las VegasBNA to LAS4 flights
Dallas to San DiegoDAL to SAN4 flights
Dallas to BaltimoreDAL to BWI4 flights
Las Vegas to Kansas CityLAS to MCI4 flights
Las Vegas to DallasLAS to DAL3 flights
Nashville to St. LouisBNA to STL3 flights
Nashville to DenverBNA to DEN3 flights
Denver to Las VegasDEN to LAS3 flights
Pittsburgh to OrlandoPIT to MCO3 flights

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

Month by month

Share of N8641B 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	84%	0%	138
September 2025	78%	0.7%	141
October 2025	85%	0%	160
November 2025	83%	1.1%	89
December 2025	74%	0%	151
January 2026	87%	1.9%	157
February 2026	84%	2.3%	130
March 2026	69%	1.9%	104
April 2026	69%	0%	154
May 2026	63%	0%	141
July 2026	67%	3.6%	165

Questions and answers

What type of aircraft is N8641B?: N8641B is a Boeing 737-8H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N8641B?: Southwest Airlines (WN) flew N8641B most recently, according to US Department of Transportation flight records for July 2026.
Where does N8641B fly?: Its most frequent route in the last 12 months was Houston to Baltimore (5 flights). It flew 1,530 flights in total, about 139 a month.
How old is N8641B?: N8641B was built in 2014, so it is 12 years old.
Is N8641B 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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