What type of aircraft is N8631A?

N8631A is a Boeing 737-8H4 with 143 seats, according to the FAA aircraft register.

Which airline flies N8631A?

Southwest Airlines (WN) flew N8631A most recently, according to US Department of Transportation flight records for July 2026.

Where does N8631A fly?

Its most frequent route in the last 12 months was Baltimore to Orlando (9 flights). It flew 1,558 flights in total, about 130 a month.

N8631A was built in 2014, so it is 12 years old.

Is N8631A 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

N8631A

Boeing 737-8H4, Southwest Airlines

N8631A is a Boeing 737-8H4 flown by Southwest Airlines, built in 2014. From August 2025 to July 2026 it flew 1,558 flights, most often Baltimore to Orlando, and 77% arrived within 15 minutes of schedule.

1,558

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 N8631A flies

Baltimore to OrlandoBWI to MCO9 flights
Houston to DenverHOU to DEN5 flights
Orlando to Kansas CityMCO to MCI4 flights
Denver to DallasDEN to DAL4 flights
St. Louis to OrlandoSTL to MCO4 flights
Kansas City to NashvilleMCI to BNA3 flights
Dallas to NashvilleDAL to BNA3 flights
Denver to Grand RapidsDEN to GRR3 flights
Grand Rapids to DenverGRR to DEN3 flights
St. Louis to HoustonSTL to HOU3 flights

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

Month by month

Share of N8631A 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%	154
September 2025	85%	0.8%	124
October 2025	81%	0%	141
November 2025	78%	3.1%	161
December 2025	67%	0%	78
January 2026	87%	0%	131
February 2026	77%	2.2%	134
March 2026	69%	0%	29
April 2026	79%	1%	103
May 2026	74%	1.3%	159
June 2026	69%	0%	174
July 2026	70%	1.2%	170

Questions and answers

What type of aircraft is N8631A?: N8631A is a Boeing 737-8H4 with 143 seats, according to the FAA aircraft register.
Which airline flies N8631A?: Southwest Airlines (WN) flew N8631A most recently, according to US Department of Transportation flight records for July 2026.
Where does N8631A fly?: Its most frequent route in the last 12 months was Baltimore to Orlando (9 flights). It flew 1,558 flights in total, about 130 a month.
How old is N8631A?: N8631A was built in 2014, so it is 12 years old.
Is N8631A 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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