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WN4778 Flight Status Southwest Airlines: Phoenix to St. Louis (SWA4778)

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WN 4778 Phoenix to St. Louis Flight Status

Southwest Airlines Flight WN4778 from Phoenix Sky Harbor International Airport PHX to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on April 5th, 2026.
Check the table below for WN4778's most recent flight history:

WN 4778 Flight Status & Schedule

Date Departure Arrival Status
Apr 05 17:05 21:35
Landed
 Track >
Mar 29 17:28 21:58
Landed
 Track >
Mar 22 18:22 22:48
Delayed
 Track >
Mar 15 18:44 23:18
Delayed
 Track >
Mar 08 17:46 22:18
Landed Late
 Track >
< All PHX Departures All STL Arrivals >

Southwest Airlines WN 4778 Phoenix to St. Louis Flight Information

Southwest Airlines Flight WN4778 connects Phoenix, United States to St. Louis, United States, taking off from Phoenix Sky Harbor International Airport PHX and landing at St. Louis Lambert International Airport STL.

How long is the WN4778 flight from Phoenix to St. Louis?

The average flight time from Phoenix to St. Louis is 2 hours and 30 minutes. The flight distance is 2027 km / 1259 miles and the average flight speed is 809 km/h / 503 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4778 Phoenix to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4778 is 4.3/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN4778 arriving at?

Flight WN4778 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN4778 flight?

The latest flight took off on Monday, April 6th, 2026 with the flight status being Landed on 21:35.

How else can the flight WN4778 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4778, WN 4778, SWA 4778.

How often is flight WN4778 delayed?

On average, 80% of all WN4778 flights are delayed. The average delay is 50 minutes.

Can I get compensation for my delayed or cancelled WN4778 flight or baggage issues?

If your WN4778 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 WN4778 Flight Tracker above for more details.

WN4778 and Phoenix PHX to St. Louis STL Flights

Other flights departing from Phoenix PHX: AA1426, AA4236, WN3614, WN3332

Other flights arriving at St. Louis STL: AA5269, WN4080, WN670, AA2154

All flights connecting Phoenix PHX to St. Louis STL.

WN4778 Southwest Airlines Flight: Phoenix to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
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Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.