Informational Guide to LAX Airport - NON OFFICIAL

WN866 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN866, which currently operates between the airports of Chicago - Chicago Midway International Airport (Airport Code MDW) and Los Angeles - Los Angeles International Airport (Airport Code LAX).
This flight data pertains specifically to the flight's details for Friday, December 19, 2025.

WN866 On Time performance:
73
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

WN866 Southwest Airlines from Chicago

Landed - Delayed
Delay: 148 minutes
Flight Status for Friday December 19, 2025
This flight is also scheduled for Tomorrow (December 21, 2025). See it here

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737-800 (Scimitar Winglets) Passenger

Departure

Chicago (MDW)
December 19, 2025
Chicago Midway International Airport
Departed at:
09:50 pm
Terminal:
-
Gate:
B7
Scheduled Departure Time: 07:50 pm

Arrival

Los Angeles (LAX)
December 19, 2025
Los Angeles International Airport
Arrived at:
12:48 am (2025-12-20)
Terminal:
1
Gate:
17B
Scheduled Arrival Time: 10:20 pm
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.los-angeles-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight WN866?
The flight WN866 is scheduled to flight on daily basis.

Which is the distance of flight WN866?
The distance between the two airports is 1748 miles.

Which is the flight time of flight WN866?
The scheduled flight time gate to gate is: 04:30 hours.
The real flight time gate to gate on average is: 04:19 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Chicago: 2025-12-20 23:30:52
Current Time in Los Angeles: 2025-12-20 21:30:52

Alternative Flights

The following airline serve the same route between Chicago and Los Angeles:
Southwest Airlines - Flight Number: WN1437. (On Time performance: 60 - Average Delay: 48 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from November 02, 2025 to December 14, 2025, we have obtained these figures.
Total number of flights: 22
On Time: 16 ( 73 % )
Moderate Delay: 2 ( 9 % )
Significant Delay: 1 ( 5 % )
Major Delay: 3 ( 14 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 20 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from November 02, 2025 to December 14, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Note: We have excluded some days from the graph, since the quantity and quality of the data is not representative enough.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from November 02, 2025 to November 28, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights WN866

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
19 December
09:50 pm
Chicago (MDW)
12:48 am
Los Angeles (LAX)
04h 58min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Thursday
18 December
06:02 pm
Chicago (MDW)
08:17 pm
Los Angeles (LAX)
04h 15min
Boeing 737-800
Boeing 737-800
Landed - On-time
Sunday
14 December
07:12 pm
Chicago (MDW)
09:17 pm
Los Angeles (LAX)
04h 05min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Saturday
13 December
08:01 pm
Chicago (MDW)
10:18 pm
Los Angeles (LAX)
04h 17min
Boeing 737-800
Boeing 737-800
Landed - On-time
Friday
12 December
06:03 pm
Chicago (MDW)
08:26 pm
Los Angeles (LAX)
04h 23min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
07 December
06:11 pm
Chicago (MDW)
08:48 pm
Los Angeles (LAX)
04h 37min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
06 December
08:11 pm
Chicago (MDW)
10:25 pm
Los Angeles (LAX)
04h 14min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
01 December
08:07 pm
Chicago (MDW)
10:21 pm
Los Angeles (LAX)
04h 14min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
28 November
06:07 pm
Chicago (MDW)
08:39 pm
Los Angeles (LAX)
04h 32min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
26 November
07:46 pm
Chicago (MDW)
10:00 pm
Los Angeles (LAX)
04h 14min
Boeing 737-800
Boeing 737-800
Landed - On-time