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(UA) United Airlines 661 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
37%
Late
14
23%
Very Late
7
12%
Excessive
15
25%
Cancelled
2
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
47
Codeshares
0
Average Delay (min.)
46.46808510638298
Standard Deviation
70.8
Min
0
Max
407

UA 661 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 37%
Average Delay Time 46.46808510638298 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 37%
This flight has an on-time performance of 37%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 46.46808510638298 min
This flight has an average delay of 46.46808510638298 minutes with a standard deviation of 70.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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