/ Flights / Southwest Airlines / WN991

WN991 Flight Status Southwest Airlines: Houston to St. Louis (SWA991)

Are you looking for the June 4th, 2026 WN 991 Los Angeles to Chicago flight? Click here to go to our WN991 Los Angeles to Chicago Flight Status page >

WN 991 Houston to St. Louis Flight Status

Southwest Airlines Flight WN991 from Houston William P. Hobby Airport HOU to St. Louis Lambert International Airport STL is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on October 1st, 2025.
Check the table below for WN991's most recent flight history:

WN 991 Flight Status & Schedule

Date Departure Arrival Status
Oct 01 08:50 10:27
Landed
 Track >
Sep 30 08:45 10:20
Landed
 Track >
Sep 29 05:14 06:50
Landed
 Track >
Sep 26 05:19 06:55
Landed
 Track >
Sep 25 05:18 06:48
Landed
 Track >
< All HOU Departures All STL Arrivals >

Southwest Airlines WN 991 Houston to St. Louis Flight Information

Southwest Airlines Flight WN991 connects Houston, United States to St. Louis, United States, taking off from Houston William P. Hobby Airport HOU and landing at St. Louis Lambert International Airport STL.

How long is the WN991 flight from Houston to St. Louis?

The average flight time from Houston to St. Louis is 1 hour and 36 minutes. The flight distance is 1108 km / 688 miles and the average flight speed is 688 km/h / 428 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN991 Houston to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN991 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN991 arriving at?

Flight WN991 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN991 flight?

The latest flight took off on Wednesday, October 1st, 2025 with the flight status being Landed on 10:27.

How else can the flight WN991 be referenced as?

This Southwest Airlines flight can also be referenced as SWA991, WN0991, WN 991, SWA 991.

How often is flight WN991 delayed?

On average, 10% of all WN991 flights are delayed. The average delay is 2 minutes.

Can I get compensation for my delayed or cancelled WN991 flight or baggage issues?

If your WN991 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our WN991 Flight Tracker above for more details.

WN991 and Houston HOU to St. Louis STL Flights

Other flights departing from Houston HOU: WN2896, WN4185, AA4067, WN2928

Other flights arriving at St. Louis STL: AA4175, WN1427, WN3444, WN1277

All flights connecting Houston HOU to St. Louis STL.

WN991 Southwest Airlines Flight: Houston to St. Louis Route Map

WN991 Southwest Airlines Flight Map: Houston to St. Louis
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: CY10 GQ1406 QF7800 LL2610 BW3522 K4898 JA1151 AF558 EO6505 MS4047
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.