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WN3520 Flight Status Southwest Airlines: Denver to St. Louis (SWA3520)

WN 3520 Denver to St. Louis Flight Status

Southwest Airlines Flight WN3520 from Denver International Airport DEN to St. Louis Lambert International Airport STL is not scheduled for today July 9th, 2026.
The last time the flight was scheduled was on June 26th, 2026.
Check the table below for WN3520's most recent flight history:

WN 3520 Flight Status & Schedule

Date Departure Arrival Status
Jun 26 11:48 14:18
Landed
 Track >
Jun 25 12:25 14:58
Landed Late
 Track >
Jun 22 11:36 14:11
Landed
 Track >
< All DEN Departures All STL Arrivals >

Southwest Airlines WN 3520 Denver to St. Louis Flight Information

Southwest Airlines Flight WN3520 connects Denver, United States to St. Louis, United States, taking off from Denver International Airport DEN and landing at St. Louis Lambert International Airport STL.

How long is the WN3520 flight from Denver to St. Louis?

The average flight time from Denver to St. Louis is 1 hour and 32 minutes. The flight distance is 1235 km / 768 miles and the average flight speed is 800 km/h / 497 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3520 Denver to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3520 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3520 arriving at?

Flight WN3520 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN3520 flight?

The latest flight took off on Friday, June 26th, 2026 with the flight status being Landed on 14:18.

How else can the flight WN3520 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3520, WN 3520, SWA 3520.

How often is flight WN3520 delayed?

On average, 33% of all WN3520 flights are delayed. The average delay is 23 minutes.

Can I get compensation for my delayed or cancelled WN3520 flight or baggage issues?

If your WN3520 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 WN3520 Flight Tracker above for more details.

WN3520 and Denver DEN to St. Louis STL Flights

Other flights departing from Denver DEN: AC1074, KG3106, WN4175, WN4262

Other flights arriving at St. Louis STL: F987, AA4509, UA4581, WN4065

All flights connecting Denver DEN to St. Louis STL.

WN3520 Southwest Airlines Flight: Denver to St. Louis Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: IZ55 2W6146 KN5616 9D5659 MU6770 RR4798 MU2374 G54885 GV25 XP9489
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.