WN 120 San Francisco to St. Louis Flight Status

Southwest Airlines Flight WN120 from San Francisco International Airport SFO to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on September 28th, 2025.
Check the table below for WN120's most recent flight history:

WN 120 Flight Status & Schedule

Date Departure Arrival Status
Sep 28 06:28 12:00
Landed
Track >
Sep 21 06:43 11:59
Landed
Track >
Sep 14 06:48 12:08
Landed
Track >
Sep 07 06:34 11:57
Landed
Track >
Aug 24 06:33 11:57
Landed
Track >

Southwest Airlines WN 120 San Francisco to St. Louis Flight Information

Southwest Airlines Flight WN120 connects San Francisco, United States to St. Louis, United States, taking off from San Francisco International Airport SFO and landing at St. Louis Lambert International Airport STL.

How long is the WN120 flight from San Francisco to St. Louis?

The average flight time from San Francisco to St. Louis is 3 hours and 27 minutes. The flight distance is 2786 km / 1731 miles and the average flight speed is 807 km/h / 502 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN120 San Francisco to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN120 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN120 arriving at?

Flight WN120 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN120 flight?

The latest flight took off on Sunday, September 28th, 2025 with the flight status being Landed on 12:00.

How else can the flight WN120 be referenced as?

This Southwest Airlines flight can also be referenced as SWA120, WN0120, WN 120, SWA 120.

How often is flight WN120 delayed?

On average, 14% of all WN120 flights are delayed. The average delay is 30 minutes.

Can I get compensation for my delayed or cancelled WN120 flight or baggage issues?

If your WN120 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 WN120 Flight Tracker above for more details.

WN120 and San Francisco SFO to St. Louis STL Flights

Other flights departing from San Francisco SFO: AS3206, AS425, AA3247, WN4012

Other flights arriving at St. Louis STL: WN2396, AA5629, AA2275, WN332

All flights connecting San Francisco SFO to St. Louis STL.

WN120 Southwest Airlines Flight: San Francisco to St. Louis Route Map

WN120 Southwest Airlines Flight Map: San Francisco to St. Louis
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.