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(AS) Alaska Airlines 4634 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(BHM) Birmingham-Shuttlesworth International Airport

Birmingham, AL, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
84%
Late
3
7%
Very Late
0
0%
Excessive
3
7%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
18
Codeshares
44
Average Delay (min.)
25.444444444444443
Standard Deviation
40.6
Min
0
Max
172

AS 4634 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 86%
Average Delay Time 25.444444444444443 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 85% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 25.444444444444443 min
This flight has an average delay of 25.444444444444443 minutes with a standard deviation of 40.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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