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WN 3866 Chicago to New Orleans Flight Status

Southwest Airlines Flight WN3866 from Chicago Midway International Airport MDW to New Orleans Louis Armstrong International Airport MSY is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on August 4th, 2025.
Check the table below for WN3866's most recent flight history:

WN 3866 Flight Status & Schedule

Date Departure Arrival Status
Aug 04 09:27 11:21
Landed
Track >
Aug 03 09:37 11:26
Landed Late
Track >
Aug 02 09:10 11:05
Landed
Track >
Aug 01 09:30 11:18
Landed
Track >
Jul 31 09:34 11:26
Landed
Track >

Southwest Airlines WN 3866 Chicago to New Orleans Flight Information

Southwest Airlines Flight WN3866 connects Chicago, United States to New Orleans, United States, taking off from Chicago Midway International Airport MDW and landing at New Orleans Louis Armstrong International Airport MSY.

How long is the WN3866 flight from Chicago to New Orleans?

The average flight time from Chicago to New Orleans is 1 hour and 50 minutes. The flight distance is 1330 km / 827 miles and the average flight speed is 712 km/h / 442 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3866 Chicago to New Orleans?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3866 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3866 arriving at?

Flight WN3866 arrives at New Orleans Louis Armstrong International Airport (MSY) Terminal 5.

When was the latest WN3866 flight?

The latest flight took off on Monday, August 4th, 2025 with the flight status being Landed on 11:21.

How else can the flight WN3866 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3866, WN 3866, SWA 3866.

How often is flight WN3866 delayed?

On average, 50% of all WN3866 flights are delayed. The average delay is 11 minutes.

Can I get compensation for my delayed or cancelled WN3866 flight or baggage issues?

If your WN3866 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 WN3866 Flight Tracker above for more details.

WN3866 and Chicago MDW to New Orleans MSY Flights

Other flights departing from Chicago MDW: WN2584, WN2883, WN1675, WN3874

Other flights arriving at New Orleans MSY: AA2846, NK1572, WN678, WN4191

All flights connecting Chicago MDW to New Orleans MSY.

WN3866 Southwest Airlines Flight: Chicago to New Orleans Route Map

WN3866 Southwest Airlines Flight Map: Chicago to New Orleans
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.