Informational Guide to Boston Logan Airport (BOS) - NON OFFICIAL

WN873 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN873, which currently operates between the airports of Boston - Boston Logan International Airport (Airport Code BOS) and Saint Louis - St Louis Lambert International Airport (Airport Code STL).
This flight data pertains specifically to the flight's details for Monday, September 29, 2025.

WN873 On Time performance:
46
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

WN873 Southwest Airlines to Saint Louis

We only provide flight information for yesterday, today and tomorrow. This flight is not scheduled for this interval of time.

Airline information

Southwest Airlines
Southwest Airlines

Departure

Boston (BOS)
September 29, 2025
Boston Logan International Airport

Arrival

Saint Louis (STL)
September 29, 2025
St Louis Lambert International Airport
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.boston-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 WN873?
The flight WN873 is scheduled to flight on Monday, Thursday, Friday on a weekly basis.

Which is the distance of flight WN873?
The distance between the two airports is 1044 miles.

Which is the flight time of flight WN873?
The scheduled flight time gate to gate is: 02:50 hours.
The real flight time gate to gate on average is: 02:47 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 Boston: 2025-10-18 13:57:04
Current Time in Saint Louis: 2025-10-18 12:57:04

Alternative Flights

The following airlines serves the same route between Boston and Saint Louis:

American Airlines
- Flight Number: AA3381. (On Time performance: 96 - Average Delay: 2 minutes)
- Flight Number: AA3562. (On Time performance: 75 - Average Delay: 18 minutes)
- Flight Number: AA3563.
- Flight Number: AA4727. (On Time performance: 82 - Average Delay: 8 minutes)

Southwest Airlines
- Flight Number: WN1441. (On Time performance: 82 - Average Delay: 7 minutes)
- Flight Number: WN1489. (On Time performance: 100 - Average Delay: 2 minutes)
- Flight Number: WN1494. (On Time performance: 29 - Average Delay: 38 minutes)
- Flight Number: WN2067. (On Time performance: 97 - Average Delay: 2 minutes)
- Flight Number: WN3775. (On Time performance: 38 - Average Delay: 57 minutes)
- Flight Number: WN882. (On Time performance: 38 - Average Delay: 58 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 August 07, 2025 to September 29, 2025, we have obtained these figures.
Total number of flights: 24
On Time: 11 ( 46 % )
Moderate Delay: 6 ( 25 % )
Significant Delay: 6 ( 25 % )
Major Delay: 1 ( 4 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 21 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from August 07, 2025 to September 29, 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.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from August 07, 2025 to September 29, 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 WN873

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
29 September
02:59 pm
Boston (BOS)
04:48 pm
Saint Louis (STL)
02h 49min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Friday
26 September
03:21 pm
Boston (BOS)
05:03 pm
Saint Louis (STL)
02h 42min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Thursday
25 September
04:26 pm
Boston (BOS)
06:13 pm
Saint Louis (STL)
02h 47min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Monday
22 September
02:46 pm
Boston (BOS)
04:45 pm
Saint Louis (STL)
02h 59min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Friday
19 September
02:46 pm
Boston (BOS)
04:27 pm
Saint Louis (STL)
02h 41min
Boeing 737-800
Boeing 737-800
Landed - On-time