Airport Tips & Quick Reference Guide to Ontario Airport (ONT)

WN239 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN239, which currently operates between the airports of Ontario - Ontario International Airport (Airport Code ONT) and Denver - Denver International Airport (Airport Code DEN).
This flight data pertains specifically to the flight's details for Thursday, August 20, 2026.

WN239 On Time performance:
50
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

WN239 Southwest Airlines to Denver

Scheduled
Flight Status for Thursday August 20, 2026

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737-700 Passenger (Scimitar Winglets)

Departure

Ontario (ONT)
August 20, 2026
Ontario International Airport
Scheduled Departure Time:
02:00 pm
Terminal:
4
Gate:
407
Scheduled Departure Time: 02:00 pm

Arrival

Denver (DEN)
August 20, 2026
Denver International Airport
Scheduled Arrival Time:
05:15 pm
Terminal:
-
Gate:
C53
Scheduled Arrival Time: 05:15 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.ontario-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 WN239?
The flight WN239 is scheduled to flight on Monday, Thursday, Friday on a weekly basis.

Which is the distance of flight WN239?
The distance between the two airports is 817 miles.

Which is the flight time of flight WN239?
The scheduled flight time gate to gate is: 02:15 hours.
The real flight time gate to gate on average is: 02:13 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 Ontario: 2026-08-20 02:30:07
Current Time in Denver: 2026-08-20 03:30:07

Alternative Flights

The following airlines serves the same route between Ontario and Denver:

UPS
- Flight Number: 5X5806. (On Time performance: 64 - Average Delay: 31 minutes)
- Flight Number: 5X806. (On Time performance: 45 - Average Delay: 19 minutes)

Frontier Airlines
- Flight Number: F91500. (On Time performance: 96 - Average Delay: 3 minutes)
- Flight Number: F92908. (On Time performance: 87 - Average Delay: 23 minutes)

United Airlines
- Flight Number: UA1263. (On Time performance: 71 - Average Delay: 12 minutes)
- Flight Number: UA2446. (On Time performance: 97 - Average Delay: 6 minutes)

Southwest Airlines
- Flight Number: WN1082.
- Flight Number: WN196.
- Flight Number: WN3074.
- Flight Number: WN3075. (On Time performance: 45 - Average Delay: 34 minutes)
- Flight Number: WN3076. (On Time performance: 60 - Average Delay: 22 minutes)
- Flight Number: WN3144. (On Time performance: 97 - Average Delay: 2 minutes)
- Flight Number: WN3145. (On Time performance: 95 - Average Delay: 7 minutes)
- Flight Number: WN3146. (On Time performance: 33 - Average Delay: 33 minutes)
- Flight Number: WN3147. (On Time performance: 25 - Average Delay: 48 minutes)
- Flight Number: WN319. (On Time performance: 100 - Average Delay: 1 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 06, 2026 to August 17, 2026, we have obtained these figures.
Total number of flights: 6
On Time: 3 ( 50 % )
Moderate Delay: 1 ( 17 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 17 % )
Canceled: 0 ( 0 % )
Diverted: 1 ( 17 % )

Average Delay: 81 minutes.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights WN239

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
17 August
02:23 pm
Ontario (ONT)
05:22 pm
Denver (DEN)
01h 59min
Boeing 737-700
Boeing 737-700
Landed - On-time
Friday
14 August
05:53 pm
Ontario (ONT)
09:05 pm
Denver (DEN)
02h 12min
Boeing 737-700
Boeing 737-700
Landed - Delayed
Thursday
13 August
06:39 pm
()
09:44 pm
Denver (DEN)
Boeing 737-700
Boeing 737-700
- DIVERTED
Thursday
13 August
06:12 pm
Ontario (ONT)
08:54 pm
Ontario (ONT)
Boeing 737-700
Boeing 737-700
Landed - DIVERTED
Monday
10 August
02:05 pm
Ontario (ONT)
05:43 pm
Denver (DEN)
Boeing 737-700
Boeing 737-700
Landed - Delayed
Friday
07 August
01:59 pm
Ontario (ONT)
05:03 pm
Denver (DEN)
Boeing 737-700
Boeing 737-700
Landed - On-time
Thursday
06 August
02:02 pm
Ontario (ONT)
05:10 pm
Denver (DEN)
Boeing 737-700
Boeing 737-700
Landed - On-time