UA552 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA552, which currently operates between the airports of Ontario - Ontario International Airport (Airport Code ONT) and Chicago - Chicago O'Hare International Airport (Airport Code ORD).
This flight data pertains specifically to the flight's details for Thursday, March 12, 2026.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA552
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA552
UA552 On Time performance:
67
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
UA552 United Airlines to Chicago
Scheduled - On-time
Flight Status for Thursday March 12, 2026
This flight was also scheduled for Yesterday (March 11, 2026). See it here
Scheduled - On-time
Flight Status for Thursday March 12, 2026
Airline information
United Airlines
Equipment: Boeing 737MAX 8 Passenger
Departure
Ontario (ONT)
March 12, 2026
Ontario International Airport
Estimated Departure Time:
11:59 pm
Terminal:
2
Gate:
-
Scheduled Departure Time: 11:59 pm
Arrival
Chicago (ORD)
March 13, 2026
Chicago O'Hare International Airport
Estimated Arrival Time:
06:02 am
Terminal:
2
Gate:
E7
Scheduled Arrival Time: 06:02 am
Baggage: 12
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 UA552?
The flight UA552 is scheduled to flight on daily basis.
Which is the distance of flight UA552?
The distance between the two airports is 1697 miles.
Which is the flight time of flight UA552?
The scheduled flight time gate to gate is: 04:03 hours.
The real flight time gate to gate on average is: 04:17 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: 2026-03-12 15:58:19
Current Time in Chicago: 2026-03-12 17:58:19
The flight UA552 is scheduled to flight on daily basis.
Which is the distance of flight UA552?
The distance between the two airports is 1697 miles.
Which is the flight time of flight UA552?
The scheduled flight time gate to gate is: 04:03 hours.
The real flight time gate to gate on average is: 04:17 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: 2026-03-12 15:58:19
Current Time in Chicago: 2026-03-12 17:58:19
Alternative Flights
United Airlines is the only airline operating the route from Ontario to Chicago.
Punctuality and delays
We have gathered data from recent months and present below an analysis of how timely the flights have been.
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 May 22, 2025 to June 25, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from March 05, 2026 to March 10, 2026, we have obtained these figures.
Total number of flights: 6
On Time: 4 ( 67 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 17 % )
Major Delay: 1 ( 17 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 43 minutes.
Total number of flights: 6
On Time: 4 ( 67 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 17 % )
Major Delay: 1 ( 17 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )
Average Delay: 43 minutes.
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from May 22, 2025 to June 25, 2025. 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 UA552
Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
12 March
12 March
11:45 pm
Ontario (ONT)
Ontario (ONT)
05:45 am
Chicago (ORD)
Chicago (ORD)
04h 00min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
11 March
11 March
03:32 am
Ontario (ONT)
Ontario (ONT)
09:41 am
Chicago (ORD)
Chicago (ORD)
04h 09min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
10 March
10 March
11:43 pm
Ontario (ONT)
Ontario (ONT)
05:52 am
Chicago (ORD)
Chicago (ORD)
04h 09min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
09 March
09 March
11:49 pm
Ontario (ONT)
Ontario (ONT)
06:06 am
Chicago (ORD)
Chicago (ORD)
04h 17min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
08 March
08 March
11:44 pm
Ontario (ONT)
Ontario (ONT)
07:39 am
Chicago (ORD)
Chicago (ORD)
04h 55min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Saturday
07 March
07 March
11:59 pm
Ontario (ONT)
Ontario (ONT)
06:02 am
Chicago (ORD)
Chicago (ORD)
04h 03min
Boeing 737-700
Boeing 737-700
Friday
06 March
06 March
11:49 pm
Ontario (ONT)
Ontario (ONT)
05:52 am
Chicago (ORD)
Chicago (ORD)
04h 03min
Boeing 737MAX
Boeing 737MAX
Landed - On-time