/ Flights / Southwest Airlines / WN3999

WN3999 Flight Status Southwest Airlines: Chicago to Washington (SWA3999)

Are you looking for the June 4th, 2026 WN 3999 Tampa to Austin flight? Click here to go to our WN3999 Tampa to Austin Flight Status page >

WN 3999 Chicago to Washington Flight Status

Southwest Airlines Flight WN3999 from Chicago Midway International Airport MDW to Washington Ronald Reagan National Airport DCA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on February 28th, 2026.
Check the table below for WN3999's most recent flight history:

WN 3999 Flight Status & Schedule

Date Departure Arrival Status
Feb 28 12:18 14:43
Landed
 Track >
Feb 21 12:28 14:46
Landed
 Track >
Feb 14 12:15 15:00
Cancelled
 Track >
Cancelled Flight? Get 600€ Compensation >
 Claim >
< All MDW Departures All DCA Arrivals >

Southwest Airlines WN 3999 Chicago to Washington Flight Information

Southwest Airlines Flight WN3999 connects Chicago, United States to Washington, United States, taking off from Chicago Midway International Airport MDW and landing at Washington Ronald Reagan National Airport DCA.

How long is the WN3999 flight from Chicago to Washington?

The average flight time from Chicago to Washington is 1 hour and 21 minutes. The flight distance is 964 km / 599 miles and the average flight speed is 658 km/h / 409 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3999 Chicago to Washington?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3999 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3999 arriving at?

Flight WN3999 arrives at Washington Ronald Reagan National Airport (DCA) Terminal 1.

When was the latest WN3999 flight?

The latest flight took off on Saturday, February 28th, 2026 with the flight status being Landed on 14:43.

How else can the flight WN3999 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3999, WN 3999, SWA 3999.

How often is flight WN3999 delayed?

On average, 0% of all WN3999 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled WN3999 flight or baggage issues?

If your WN3999 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 WN3999 Flight Tracker above for more details.

WN3999 and Chicago MDW to Washington DCA Flights

Other flights departing from Chicago MDW: WN127, WN220, WN2379, WN2859

Other flights arriving at Washington DCA: WN2151, AA2105, AA4800, WN1984

All flights connecting Chicago MDW to Washington DCA.

WN3999 Southwest Airlines Flight: Chicago to Washington Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: AC7006 MS6109 N8718 WN4973 PF7792 TK6754 TK5324 B5444 7F169 3U9806
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.