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(AS) Alaska Airlines 4559 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(GSP) Greenville-Spartanburg International Airport

Greenville, SC, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
62%
Late
3
23%
Very Late
0
0%
Excessive
2
15%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
13
Total Delays ( > 1 min )
7
Codeshares
13
Average Delay (min.)
69.14285714285714
Standard Deviation
119.3
Min
0
Max
338

AS 4559 On-Time Performance Details

Overall Rating
0.4 of 5
Very Poor
Percentage On-Time 62%
Average Delay Time 69.14285714285714 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 6% of all other flights in the FlightStats database.
On-Time Performance Rating
0.5 of 5
Very Poor
Percentage On-Time 62%
This flight has an on-time performance of 62%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 10% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 69.14285714285714 min
This flight has an average delay of 69.14285714285714 minutes with a standard deviation of 119.3 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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