WN 1666 Seattle to Chicago Flight Status

Southwest Airlines Flight WN1666 from Seattle Tacoma International Airport SEA to Chicago Midway International Airport MDW is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on October 1st, 2025.
Check the table below for WN1666's most recent flight history:

WN 1666 Flight Status & Schedule

Date Departure Arrival Status
Oct 01 23:33 04:54
Landed
Track >
Sep 30 23:23 04:57
Landed
Track >
Sep 29 23:24 05:04
Landed
Track >
Sep 28 23:38 05:07
Landed
Track >
Sep 27 23:40 05:09
Landed
Track >

Southwest Airlines WN 1666 Seattle to Chicago Flight Information

Southwest Airlines Flight WN1666 connects Seattle, United States to Chicago, United States, taking off from Seattle Tacoma International Airport SEA and landing at Chicago Midway International Airport MDW.

How long is the WN1666 flight from Seattle to Chicago?

The average flight time from Seattle to Chicago is 3 hours and 28 minutes. The flight distance is 2782 km / 1729 miles and the average flight speed is 800 km/h / 497 mph.

What is the On-Time Performance (OTP) of Southwest Airlines Flight WN1666 Seattle to Chicago?

The Airportia On-Time Performance Rating for Southwest Airlines Flight WN1666 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight WN1666 arriving at?

Flight WN1666 arrives at Chicago Midway International Airport (MDW) Terminal 1.

When was the latest WN1666 flight?

The latest flight took off on Thursday, October 2nd, 2025 with the flight status being Landed on 04:54.

How else can the flight WN1666 be referenced as?

This Southwest Airlines flight can also be referenced as SWA1666, WN 1666, SWA 1666.

How often is flight WN1666 delayed?

On average, 10% of all WN1666 flights are delayed. The average delay is 53 minutes.

Can I get compensation for my delayed or cancelled WN1666 flight or baggage issues?

If your WN1666 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 WN1666 Flight Tracker above for more details.

WN1666 and Seattle SEA to Chicago MDW Flights

Other flights departing from Seattle SEA: WN4255, AA1095, AS2383, AA1674

Other flights arriving at Chicago MDW: WN4286, WN3396, G42522, JL936

All flights connecting Seattle SEA to Chicago MDW.

WN1666 Southwest Airlines Flight: Seattle to Chicago Route Map

WN1666 Southwest Airlines Flight Map: Seattle to Chicago
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.