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WN 3998 Washington to St. Louis Flight Status

Southwest Airlines Flight WN3998 from Washington Ronald Reagan National Airport DCA to St. Louis Lambert International Airport STL is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on October 1st, 2025.
Check the table below for WN3998's most recent flight history:

WN 3998 Flight Status & Schedule

Date Departure Arrival Status
Oct 01 12:13 12:57
Landed
Track >
Sep 30 12:22 13:06
Landed
Track >
Sep 29 12:12 12:55
Landed
Track >
Sep 28 12:22 13:02
Landed
Track >
Sep 26 12:25 13:07
Landed
Track >

Southwest Airlines WN 3998 Washington to St. Louis Flight Information

Southwest Airlines Flight WN3998 connects Washington, United States to St. Louis, United States, taking off from Washington Ronald Reagan National Airport DCA and landing at St. Louis Lambert International Airport STL.

How long is the WN3998 flight from Washington to St. Louis?

The average flight time from Washington to St. Louis is 1 hour and 44 minutes. The flight distance is 1154 km / 717 miles and the average flight speed is 661 km/h / 411 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3998 Washington to St. Louis?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3998 is 5/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3998 arriving at?

Flight WN3998 arrives at St. Louis Lambert International Airport (STL) Terminal 2.

When was the latest WN3998 flight?

The latest flight took off on Wednesday, October 1st, 2025 with the flight status being Landed on 12:57.

How else can the flight WN3998 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3998, WN 3998, SWA 3998.

How often is flight WN3998 delayed?

On average, 10% of all WN3998 flights are delayed. The average delay is 1 minute.

Can I get compensation for my delayed or cancelled WN3998 flight or baggage issues?

If your WN3998 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 WN3998 Flight Tracker above for more details.

WN3998 and Washington DCA to St. Louis STL Flights

Other flights departing from Washington DCA: AA2098, AA3249, AA2801, AA4446

Other flights arriving at St. Louis STL: WN1766, WN1336, AA2409, WN2687

All flights connecting Washington DCA to St. Louis STL.

WN3998 Southwest Airlines Flight: Washington to St. Louis Route Map

WN3998 Southwest Airlines Flight Map: Washington to St. Louis
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.