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(UA) United Airlines 4434 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(CHA) Chattanooga Metropolitan Airport

Chattanooga, TN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
59%
Late
2
7%
Very Late
0
0%
Excessive
9
31%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
12
Codeshares
28
Average Delay (min.)
138.41666666666666
Standard Deviation
159.4
Min
0
Max
610

UA 4434 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 61%
Average Delay Time 138.41666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.3 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 7% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 138.41666666666666 min
This flight has an average delay of 138.41666666666666 minutes with a standard deviation of 159.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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