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(UA) United Airlines 5557 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SUN) Friedman Memorial Airport

Sun Valley, ID, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
52%
Late
1
5%
Very Late
2
10%
Excessive
5
24%
Cancelled
1
5%
Diverted
1
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
20
Total Delays ( > 1 min )
13
Codeshares
20
Average Delay (min.)
53.84615384615385
Standard Deviation
71.8
Min
0
Max
263

UA 5557 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 55%
Average Delay Time 53.84615384615385 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.4 shows that this flight has on-time performance characteristics better than 7% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 55%
This flight has an on-time performance of 55%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 3% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 53.84615384615385 min
This flight has an average delay of 53.84615384615385 minutes with a standard deviation of 71.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.

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