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

WN135 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN135, which currently operates between the airports of Denver - Denver International Airport (Airport Code DEN) and Ontario - Ontario International Airport (Airport Code ONT).
This flight data pertains specifically to the flight's details for Wednesday, September 30, 2026.

WN135 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

WN135 Southwest Airlines from Denver

This flight is not scheduled for October 02, 2026.

Airline information

Southwest Airlines
Southwest Airlines

Departure

Denver (DEN)
September 30, 2026
Denver International Airport

Arrival

Ontario (ONT)
September 30, 2026
Ontario 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.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 WN135?
The flight WN135 is currently not scheduled at Ontario Airport (ONT).

Which is the distance of flight WN135?
The distance between the two airports is 817 miles.

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 Denver: 2026-10-02 15:30:24
Current Time in Ontario: 2026-10-02 14:30:24

Alternative Flights

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

UPS
- Flight Number: 5X2805. (On Time performance: 94 - Average Delay: 4 minutes)
- Flight Number: 5X805. (On Time performance: 85 - Average Delay: 9 minutes)
- Flight Number: 5X9802. (On Time performance: 80 - Average Delay: 7 minutes)

Frontier Airlines
- Flight Number: F91261. (On Time performance: 66 - Average Delay: 23 minutes)
- Flight Number: F92907. (On Time performance: 95 - Average Delay: 3 minutes)

United Airlines
- Flight Number: UA2028. (On Time performance: 49 - Average Delay: 42 minutes)
- Flight Number: UA430. (On Time performance: 90 - Average Delay: 9 minutes)

Southwest Airlines
- Flight Number: WN141. (On Time performance: 60 - Average Delay: 36 minutes)
- Flight Number: WN1596. (On Time performance: 84 - Average Delay: 8 minutes)
- Flight Number: WN1598. (On Time performance: 25 - Average Delay: 54 minutes)
- Flight Number: WN2050. (On Time performance: 75 - Average Delay: 11 minutes)
- Flight Number: WN3265. (On Time performance: 71 - Average Delay: 20 minutes)
- Flight Number: WN3959. (On Time performance: 63 - Average Delay: 17 minutes)
- Flight Number: WN4341. (On Time performance: 38 - Average Delay: 75 minutes)
- Flight Number: WN4773. (On Time performance: 33 - Average Delay: 82 minutes)
- Flight Number: WN4794. (On Time performance: 77 - Average Delay: 9 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Weekday: We have gathered available data from last six months, spanning from September 09, 2026 to September 30, 2026. 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: 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 WN135

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
30 September
09:14 pm
Denver (DEN)
10:19 pm
Ontario (ONT)
02h 05min
Boeing 737-800
Boeing 737-800
Landed - On-time
Wednesday
23 September
08:53 pm
Denver (DEN)
10:01 pm
Ontario (ONT)
02h 08min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
16 September
09:28 pm
Denver (DEN)
10:45 pm
Ontario (ONT)
02h 17min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Wednesday
09 September
09:10 pm
Denver (DEN)
10:26 pm
Ontario (ONT)
02h 16min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed