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(AS) Alaska Airlines 4557 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(DSM) Des Moines International Airport

Des Moines, IA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
85%
Late
1
8%
Very Late
0
0%
Excessive
1
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
13
Total Delays ( > 1 min )
3
Codeshares
13
Average Delay (min.)
36.333333333333336
Standard Deviation
49.6
Min
0
Max
93

AS 4557 On-Time Performance Details

Overall Rating
3.2 of 5
Average
Percentage On-Time 85%
Average Delay Time 36.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.
On-Time Performance Rating
4.1 of 5
Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 36.333333333333336 min
This flight has an average delay of 36.333333333333336 minutes with a standard deviation of 49.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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