background

(UA) United Airlines 4397 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(MLI) Quad Cities International Airport

Moline, IL, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
13
76%
Late
2
12%
Very Late
0
0%
Excessive
2
12%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
17
Total Delays ( > 1 min )
9
Codeshares
17
Average Delay (min.)
67
Standard Deviation
124.6
Min
0
Max
372

UA 4397 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 77%
Average Delay Time 67 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 67 min
This flight has an average delay of 67 minutes with a standard deviation of 124.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

Other Stops for UA 4397