WN3991 Flight Status Southwest Airlines: Chicago to Seattle (SWA3991)

How long is the WN3991 flight from Chicago to Seattle?

The average flight time from Chicago to Seattle is 4 hours and 2 minutes. The flight distance is 2782 km / 1729 miles and the average flight speed is 690 km/h / 429 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN3991 Chicago to Seattle?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN3991 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN3991 arriving at?

Flight WN3991 arrives at Seattle Tacoma International Airport (SEA) Terminal B.

When was the latest WN3991 flight?

The latest flight took off on Monday, October 27th, 2025 with the flight status being Landed on 19:08.

How else can the flight WN3991 be referenced as?

This Southwest Airlines flight can also be referenced as SWA3991, WN 3991, SWA 3991.

How often is flight WN3991 delayed?

On average, 50% of all WN3991 flights are delayed. The average delay is 17 minutes.

Can I get compensation for my delayed or cancelled WN3991 flight or baggage issues?

If your WN3991 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.