background

(AS) Alaska Airlines 139 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(ANC) Ted Stevens Anchorage International Airport

Anchorage, AK, US

On-Time Performance Chart

(using rounded numbers)
On-Time
36
75%
Late
4
8%
Very Late
3
6%
Excessive
4
8%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
18
Codeshares
0
Average Delay (min.)
29.77777777777778
Standard Deviation
25.3
Min
0
Max
85

AS 139 On-Time Performance Details

Overall Rating
3.1 of 5
Average
Percentage On-Time 77%
Average Delay Time 29.77777777777778 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.1 shows that this flight has on-time performance characteristics better than 61% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 29.77777777777778 min
This flight has an average delay of 29.77777777777778 minutes with a standard deviation of 25.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.