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(UA) United Airlines 661 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(IND) Indianapolis International Airport

Indianapolis, IN, US

On-Time Performance Chart

(using rounded numbers)
On-Time
13
62%
Late
1
5%
Very Late
1
5%
Excessive
5
24%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
12
Codeshares
0
Average Delay (min.)
51.75
Standard Deviation
58.2
Min
0
Max
171

UA 661 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 62%
Average Delay Time 51.75 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 18% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 62%
This flight has an on-time performance of 62%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
1.1 of 5
Poor
Average Delay Time 51.75 min
This flight has an average delay of 51.75 minutes with a standard deviation of 58.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 21% of other flights.

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