(UA) United Airlines 3489 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-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

63%

Late

13%

Very Late

Excessive

10%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

39.9

Standard Deviation

37.1

Min

Max

119

UA 3489 On-Time Performance Details

Overall Rating

1.1 of 5

Poor

Percentage On-Time 66%

Average Delay Time 39.9 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.

On-Time Performance Rating

0.4 of 5

Very Poor

Percentage On-Time 66%

This flight has an on-time performance of 66%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 8% of other flights.

Delay Performance

1.7 of 5

Average

Average Delay Time 39.9 min

This flight has an average delay of 39.9 minutes with a standard deviation of 37.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.