background

(UA) United Airlines 4690 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
29
83%
Late
2
6%
Very Late
1
3%
Excessive
3
9%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
35
Total Delays ( > 1 min )
12
Codeshares
35
Average Delay (min.)
124.83333333333333
Standard Deviation
255.4
Min
0
Max
849

UA 4690 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 83%
Average Delay Time 124.83333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 42% of all other flights in the FlightStats database.
On-Time Performance Rating
4.3 of 5
Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 86% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 124.83333333333333 min
This flight has an average delay of 124.83333333333333 minutes with a standard deviation of 255.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

Other Stops for UA 4690