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WN4021 Flight Status Southwest Airlines: Denver to Milwaukee (SWA4021)

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WN 4021 Denver to Milwaukee Flight Status

Southwest Airlines Flight WN4021 from Denver International Airport DEN to Milwaukee General Mitchell International Airport MKE is not scheduled for today July 23rd, 2026.
The last time the flight was scheduled was on July 19th, 2026.
Check the table below for WN4021's most recent flight history:

WN 4021 Flight Status & Schedule

Date Departure Arrival Status
Jul 19 16:51 19:40
Landed Late
 Track >
Jul 12 16:04 18:58
Landed
 Track >
Jul 05 16:19 19:15
Landed
 Track >
Jun 28 16:17 19:03
Landed
 Track >
Jun 21 19:04 19:10
En-Route
 Track >
< All DEN Departures All MKE Arrivals >

Southwest Airlines WN 4021 Denver to Milwaukee Flight Information

Southwest Airlines Flight WN4021 connects Denver, United States to Milwaukee, United States, taking off from Denver International Airport DEN and landing at Milwaukee General Mitchell International Airport MKE.

How long is the WN4021 flight from Denver to Milwaukee?

The average flight time from Denver to Milwaukee is 1 hour and 52 minutes. The flight distance is 1438 km / 893 miles and the average flight speed is 750 km/h / 466 mph.

How many WN4021 flights are operated per week?

1 flight per week. The flight WN4021 is operated on Sunday.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN4021 Denver to Milwaukee?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN4021 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN4021 flight?

The latest flight took off on Monday, July 20th, 2026 with the flight status being Landed on 19:40.

How else can the flight WN4021 be referenced as?

This Southwest Airlines flight can also be referenced as SWA4021, WN 4021, SWA 4021.

How often is flight WN4021 delayed?

On average, 57% of all WN4021 flights are delayed. The average delay is 44 minutes.

Can I get compensation for my delayed or cancelled WN4021 flight or baggage issues?

If your WN4021 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 WN4021 Flight Tracker above for more details.

WN4021 and Denver DEN to Milwaukee MKE Flights

Other flights departing from Denver DEN: F94776, OO5111, WN3062, WN3776

Other flights arriving at Milwaukee MKE: DL4986, DL8883, UA5555, WN4733

All flights connecting Denver DEN to Milwaukee MKE.

WN4021 Southwest Airlines Flight: Denver to Milwaukee Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: 6E9058 QG904 2S4038 6G1008 6G1009 OH5294 SG9093 HT1140 WI1986 FB5790
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.