Informational Guide to Ontario Airport (ONT) - NON OFFICIAL

5X804 UPS - Flight Status

Below, you can find details about UPS flight 5X804, 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 Thursday, December 18, 2025.

5X804 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

5X804 UPS from Denver

Landed - On-time
Flight Status for Thursday December 18, 2025
This flight is also scheduled for Today (December 19, 2025). See it here

Airline information

UPS
Equipment: Boeing 757-200 Freighter

Departure

Denver (DEN)
December 18, 2025
Denver International Airport
Departed at:
03:10 am
Terminal:
-
Gate:
-
Scheduled Departure Time: 03:02 am

Arrival

Ontario (ONT)
December 18, 2025
Ontario International Airport
Arrived at:
04:02 am
Terminal:
-
Gate:
-
Scheduled Arrival Time: 04:04 am
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 5X804?
The flight 5X804 is scheduled to flight on Tuesday, Wednesday, Thursday, Friday on a weekly basis.

Which is the distance of flight 5X804?
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: 2025-12-19 05:34:47
Current Time in Ontario: 2025-12-19 04:34:47

Alternative Flights

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

UPS
- Flight Number: 5X2805. (On Time performance: 80 - Average Delay: 10 minutes)
- Flight Number: 5X805. (On Time performance: 58 - Average Delay: 18 minutes)
- Flight Number: 5X825. (On Time performance: 57 - Average Delay: 13 minutes)

Air Transport International
- Flight Number: 8C3331. (On Time performance: 26 - Average Delay: 42 minutes)

Frontier Airlines
- Flight Number: F91261. (On Time performance: 93 - Average Delay: 4 minutes)
- Flight Number: F91499. (On Time performance: 79 - Average Delay: 14 minutes)

United Airlines
- Flight Number: UA1109. (On Time performance: 83 - Average Delay: 10 minutes)
- Flight Number: UA2028. (On Time performance: 89 - Average Delay: 3 minutes)
- Flight Number: UA430. (On Time performance: 88 - Average Delay: 6 minutes)

Southwest Airlines
- Flight Number: WN2571. (On Time performance: 70 - Average Delay: 10 minutes)
- Flight Number: WN2576. (On Time performance: 76 - Average Delay: 12 minutes)
- Flight Number: WN2578. (On Time performance: 63 - Average Delay: 26 minutes)
- Flight Number: WN4721.
- Flight Number: WN533. (On Time performance: 87 - Average Delay: 6 minutes)

Volaris

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: We have gathered available data from last twelve closed months, spanning from December 17, 2024 to December 24, 2024. 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 5X804

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
18 December
03:10 am
Denver (DEN)
04:02 am
Ontario (ONT)
01h 52min
Boeing 757-200
Boeing 757-200
Landed - On-time
Wednesday
17 December
03:09 am
Denver (DEN)
04:08 am
Ontario (ONT)
01h 59min
Boeing 757-200
Boeing 757-200
Landed - On-time
Tuesday
16 December
03:05 am
Denver (DEN)
03:52 am
Ontario (ONT)
01h 47min
Boeing 757-200
Boeing 757-200
Landed - On-time