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(UA) United Airlines 4188 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(GRB) Green Bay Austin Straubel International Airport

Green Bay, WI, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
71%
Late
4
11%
Very Late
1
3%
Excessive
4
11%
Cancelled
1
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
11
Codeshares
35
Average Delay (min.)
59
Standard Deviation
84
Min
0
Max
297

UA 4188 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 71%
Average Delay Time 59 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 19% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
0.5 of 5
Very Poor
Average Delay Time 59 min
This flight has an average delay of 59 minutes with a standard deviation of 84 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.

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