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(AS) Alaska Airlines 489 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(ONT) Ontario International Airport

Ontario, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
40
69%
Late
10
17%
Very Late
2
3%
Excessive
5
9%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
28
Codeshares
0
Average Delay (min.)
27.785714285714285
Standard Deviation
34.5
Min
0
Max
147

AS 489 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 70%
Average Delay Time 27.785714285714285 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. 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
3.1 of 5
Average
Average Delay Time 27.785714285714285 min
This flight has an average delay of 27.785714285714285 minutes with a standard deviation of 34.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.