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(UA) United Airlines 1857 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(MIA) Miami International Airport

Miami, FL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
79%
Late
5
12%
Very Late
1
2%
Excessive
3
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
42
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
30.666666666666668
Standard Deviation
22.2
Min
0
Max
76

UA 1857 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 79%
Average Delay Time 30.666666666666668 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 79%
This flight has an on-time performance of 79%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 30.666666666666668 min
This flight has an average delay of 30.666666666666668 minutes with a standard deviation of 22.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

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