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WN851 Flight Status Southwest Airlines: Kansas City to St. Louis (SWA851)

WN 851 Kansas City to St. Louis Flight Status

Southwest Airlines Flight WN851 from Kansas City International Airport MCI to St. Louis Lambert International Airport STL is not scheduled for today June 5th, 2026.
The last time the flight was scheduled was on June 4th, 2025.
Check the table below for WN851's most recent flight history:

WN 851 Flight Status & Schedule

Date Departure Arrival Status
Jun 04 05:59 06:39
Landed
 Track >
Jun 03 05:56 06:35
Landed
 Track >
Jun 02 17:45 18:19
Landed
 Track >
Jun 01 13:40 14:17
Landed
 Track >
< All MCI Departures All STL Arrivals >

Southwest Airlines WN 851 Kansas City to St. Louis Flight Information

Southwest Airlines Flight WN851 connects Kansas City, United States to St. Louis, United States, taking off from Kansas City International Airport MCI and landing at St. Louis Lambert International Airport STL.

How long is the WN851 flight from Kansas City to St. Louis?

The average flight time from Kansas City to St. Louis is 37 minutes. The flight distance is 380 km / 236 miles and the average flight speed is 611 km/h / 379 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN851 Kansas City to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN851 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN851 flight?

The latest flight took off on Wednesday, June 4th, 2025 with the flight status being Landed on 06:39.

How else can the flight WN851 be referenced as?

This Southwest Airlines flight can also be referenced as SWA851, WN0851, WN 851, SWA 851.

How often is flight WN851 delayed?

On average, 25% of all WN851 flights are delayed. The average delay is 2 minutes.

Can I get compensation for my delayed or cancelled WN851 flight or baggage issues?

If your WN851 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 WN851 Flight Tracker above for more details.

WN851 and Kansas City MCI to St. Louis STL Flights

Other flights departing from Kansas City MCI: AA4669, WN1882, WN1121, WN807

Other flights arriving at St. Louis STL: AS238, WN1004, WN1431, WN3302

All flights connecting Kansas City MCI to St. Louis STL.

WN851 Southwest Airlines Flight: Kansas City to St. Louis Route Map

WN851 Southwest Airlines Flight Map: Kansas City to St. Louis
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: DX6751 OS982 PI306 WK7701 PK1000 9K1302 9K3411 3E576 AD9153 EB3781
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.