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(AS) Alaska Airlines 6521 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-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
4
50%
Late
0
0%
Very Late
0
0%
Excessive
4
50%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
8
Total Delays ( > 1 min )
4
Codeshares
8
Average Delay (min.)
126
Standard Deviation
37.8
Min
0
Max
180

AS 6521 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 50%
Average Delay Time 126 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
0.2 of 5
Very Poor
Percentage On-Time 50%
This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 126 min
This flight has an average delay of 126 minutes with a standard deviation of 37.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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