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

WN542 Southwest Airlines - Flight Status

Below, you can find details about Southwest Airlines flight WN542, 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 Wednesday, March 18, 2026.

WN542 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

WN542 Southwest Airlines to Denver

Scheduled - On-time
Flight Status for Wednesday March 18, 2026

Airline information

Southwest Airlines
Southwest Airlines
Equipment: Boeing 737-700 (winglets) Passenger/BBJ1

Departure

Ontario (ONT)
March 18, 2026
Ontario International Airport
Estimated Departure Time:
01:40 pm
Terminal:
4
Gate:
403
Scheduled Departure Time: 01:40 pm

Arrival

Denver (DEN)
March 18, 2026
Denver International Airport
Estimated Arrival Time:
04:55 pm
Terminal:
-
Gate:
C52
Scheduled Arrival Time: 04:55 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 WN542?
The flight WN542 is scheduled to flight on Monday, Tuesday, Wednesday, Thursday, Friday, Sunday on a weekly basis.

Which is the distance of flight WN542?
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 Ontario: 2026-03-18 04:34:47
Current Time in Denver: 2026-03-18 05:34:47

Alternative Flights

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

UPS
- Flight Number: 5X5806. (On Time performance: 71 - Average Delay: 30 minutes)
- Flight Number: 5X806. (On Time performance: 79 - Average Delay: 10 minutes)

Air Transport International
- Flight Number: 8C3315. (On Time performance: 4 - Average Delay: 50 minutes)

Frontier Airlines
- Flight Number: F91500. (On Time performance: 85 - Average Delay: 15 minutes)
- Flight Number: F92908. (On Time performance: 75 - Average Delay: 30 minutes)

United Airlines
- Flight Number: UA1263. (On Time performance: 88 - Average Delay: 21 minutes)
- Flight Number: UA2446. (On Time performance: 90 - Average Delay: 11 minutes)

Southwest Airlines
- Flight Number: WN2220. (On Time performance: 84 - Average Delay: 12 minutes)
- Flight Number: WN2442. (On Time performance: 96 - Average Delay: 3 minutes)
- Flight Number: WN2611. (On Time performance: 81 - Average Delay: 14 minutes)
- Flight Number: WN3021. (On Time performance: 80 - Average Delay: 11 minutes)
- Flight Number: WN3022. (On Time performance: 82 - Average Delay: 5 minutes)
- Flight Number: WN4129. (On Time performance: 78 - Average Delay: 9 minutes)
- Flight Number: WN4132. (On Time performance: 60 - Average Delay: 44 minutes)
- Flight Number: WN4671. (On Time performance: 33 - Average Delay: 36 minutes)
- Flight Number: WN787. (On Time performance: 56 - Average Delay: 40 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 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 WN542

Date
Departure
Arrival
Duration
Aircraft
Status
Tuesday
17 March
02:00 pm
Ontario (ONT)
05:03 pm
Denver (DEN)
02h 03min
Boeing 737-700
Boeing 737-700
Landed - On-time
Sunday
15 March
04:48 pm
Ontario (ONT)
05:58 pm
Oakland (OAK)
00h 10min
Boeing 737-700
Boeing 737-700
Landed - Delayed
Wednesday
11 March
02:15 pm
Ontario (ONT)
05:19 pm
Denver (DEN)
02h 04min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
10 March
01:39 pm
Ontario (ONT)
04:44 pm
Denver (DEN)
02h 05min
Boeing 737-700
Boeing 737-700
Landed - On-time
Sunday
08 March
03:42 pm
Ontario (ONT)
04:54 pm
Oakland (OAK)
00h 12min
Boeing 737-700
Boeing 737-700
Landed - On-time