Informational Guide to Ontario Airport (ONT) - NON OFFICIAL

UA393 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA393, which currently operates between the airports of Ontario - Ontario International Airport (Airport Code ONT) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Saturday, August 30, 2025.

UA393 On Time performance:
20
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

UA393 United Airlines to San Francisco

Landed - On-time
Flight Status for Saturday August 30, 2025
This flight is also scheduled for Today (August 31, 2025). See it here
This flight is also scheduled for Tomorrow (September 01, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Airbus A320

Departure

Ontario (ONT)
August 30, 2025
Ontario International Airport
Departed at:
06:41 pm
Terminal:
2
Gate:
201
Scheduled Departure Time: 06:50 pm

Arrival

San Francisco (SFO)
August 30, 2025
San Francisco International Airport
Arrived at:
07:57 pm
Terminal:
2
Gate:
D16
Scheduled Arrival Time: 08:09 pm
Baggage: D1
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.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AC4112 - Air Canada

- CM2528 - Copa Airlines

Additional Information

Which is the frequency of flight UA393?
The flight UA393 is scheduled to flight on daily basis.

Which is the distance of flight UA393?
The distance between the two airports is 364 miles.

Which is the flight time of flight UA393?
The scheduled flight time gate to gate is: 01:19 hours.
The real flight time gate to gate on average is: 01:40 hours.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

Alternative Flights

The following airlines serves the same route between Ontario and San Francisco:

Frontier Airlines
- Flight Number: F92677. (On Time performance: 53 - Average Delay: 43 minutes)

United Airlines
- Flight Number: UA2042. (On Time performance: 53 - Average Delay: 41 minutes)
- Flight Number: UA2332. (On Time performance: 88 - Average Delay: 6 minutes)
- Flight Number: UA2647. (On Time performance: 90 - Average Delay: 4 minutes)
- Flight Number: UA277. (On Time performance: 90 - Average Delay: 8 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 19, 2025 to August 28, 2025, we have obtained these figures.
Total number of flights: 10
On Time: 2 ( 20 % )
Moderate Delay: 4 ( 40 % )
Significant Delay: 1 ( 10 % )
Major Delay: 2 ( 20 % )
Canceled: 0 ( 0 % )
Diverted: 1 ( 10 % )

Average Delay: 35 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 UA393

Date
Departure
Arrival
Duration
Aircraft
Status
Saturday
30 August
06:41 pm
Ontario (ONT)
07:57 pm
San Francisco (SFO)
01h 16min
Airbus A320
Airbus A320
Landed - On-time
Friday
29 August
06:39 pm
Ontario (ONT)
07:59 pm
San Francisco (SFO)
01h 20min
Airbus A320
Airbus A320
Landed - On-time
Thursday
28 August
06:46 pm
Ontario (ONT)
08:14 pm
San Francisco (SFO)
01h 28min
Airbus A320
Airbus A320
Landed - On-time
Wednesday
27 August
06:46 pm
Ontario (ONT)
08:47 pm
San Francisco (SFO)
02h 01min
Airbus A320
Airbus A320
Landed - Delayed
Tuesday
26 August
06:38 pm
Ontario (ONT)
08:35 pm
San Francisco (SFO)
01h 57min
Airbus A320
Airbus A320
Landed - Delayed
Monday
25 August
06:42 pm
Ontario (ONT)
08:35 pm
San Francisco (SFO)
01h 53min
Airbus A320
Airbus A320
Landed - Delayed
Sunday
24 August
09:02 pm
Ontario (ONT)
10:14 pm
San Francisco (SFO)
01h 12min
Airbus A320
Airbus A320
Landed - Delayed
Saturday
23 August
06:37 pm
Ontario (ONT)
07:59 pm
San Francisco (SFO)
01h 22min
Airbus A320
Airbus A320
Landed - On-time
Friday
22 August
08:40 pm
()
10:44 pm
San Francisco (SFO)
Airbus A320
Airbus A320
Landed - DIVERTED
Friday
22 August
08:30 pm
Ontario (ONT)
08:26 pm
Ontario (ONT)
Airbus A320
Airbus A320
- DIVERTED