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WN3999 Flight Status Southwest Airlines: Eugene to Denver (SWA3999)

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WN 3999 Eugene to Denver Flight Status

Southwest Airlines Flight WN3999 from Eugene Airport EUG to Denver International Airport DEN is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on January 3rd, 2026.
Check the table below for WN3999's most recent flight history:

WN 3999 Flight Status & Schedule

Date Departure Arrival Status
Jan 03 16:37 19:34
Landed Late
 Track >
Dec 27 16:20 19:23
Landed Late
 Track >
Dec 20 16:34 19:19
Landed Late
 Track >
Nov 29 16:55 19:52
Delayed
 Track >
Nov 22 15:54 19:03
Landed
 Track >
< All EUG Departures All DEN Arrivals >

Southwest Airlines WN 3999 Eugene to Denver Flight Information

Southwest Airlines Flight WN3999 connects Eugene, United States to Denver, United States, taking off from Eugene Airport EUG and landing at Denver International Airport DEN.

How long is the WN3999 flight from Eugene to Denver?

The average flight time from Eugene to Denver is 1 hour and 58 minutes. The flight distance is 1600 km / 994 miles and the average flight speed is 816 km/h / 507 mph.

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

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3999 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN3999 flight?

The latest flight took off on Sunday, January 4th, 2026 with the flight status being Landed on 19:34.

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, 100% of all WN3999 flights are delayed. The average delay is 31 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 Eugene EUG to Denver DEN Flights

Other flights departing from Eugene EUG: WN3876, AA1648, WN2738, AS3319

Other flights arriving at Denver DEN: WN1339, WN1655, WN222, WN3302

All flights connecting Eugene EUG to Denver DEN.

WN3999 Southwest Airlines Flight: Eugene to Denver Route Map

Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
New Flights: A24158 WF7123 MX9993 A24160 9M1094 E45219 R57512 7F168 MW2696 4D890
See Also: Flight Tracker Airports Airlines News Flights Monitor Delay Compensation
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.