WN 1129 Chicago to Seattle Flight Status

Southwest Airlines Flight WN1129 from Chicago Midway International Airport MDW to Seattle Tacoma International Airport SEA is not scheduled for today June 4th, 2026.
The last time the flight was scheduled was on June 2nd, 2025.
Check the table below for WN1129's most recent flight history:

WN 1129 Flight Status & Schedule

Date Departure Arrival Status
Jun 02 11:46 13:48
Landed
Track >

Southwest Airlines WN 1129 Chicago to Seattle Flight Information

Southwest Airlines Flight WN1129 connects Chicago, United States to Seattle, United States, taking off from Chicago Midway International Airport MDW and landing at Seattle Tacoma International Airport SEA.

How long is the WN1129 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 WN1129 Chicago to Seattle?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN1129 is 5/5 stars. This metric is calculated using data from the past 10 flights.

When was the latest WN1129 flight?

The latest flight took off on Monday, June 2nd, 2025 with the flight status being Landed on 13:48.

How else can the flight WN1129 be referenced as?

This Southwest Airlines flight can also be referenced as SWA1129, WN 1129, SWA 1129.

How often is flight WN1129 delayed?

On average, 0% of all WN1129 flights are delayed. The average delay is 0 minutes.

Can I get compensation for my delayed or cancelled WN1129 flight or baggage issues?

If your WN1129 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 WN1129 Flight Tracker above for more details.

WN1129 and Chicago MDW to Seattle SEA Flights

This is a multi leg flight of Southwest Airlines WN1129. Previous leg is New Orleans to Chicago

Other flights departing from Chicago MDW: WN142, WN2276, WN251, WN2320

Other flights arriving at Seattle SEA: DL1687, WN736, AS2028, DL3666

All flights connecting Chicago MDW to Seattle SEA.

WN1129 Southwest Airlines Flight: Chicago to Seattle Route Map

WN1129 Southwest Airlines Flight Map: Chicago to Seattle
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.