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(AS) Alaska Airlines 4551 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(PHX) Phoenix Sky Harbor International Airport

Phoenix, AZ, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
22
73%
Late
4
13%
Very Late
0
0%
Excessive
4
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
30
Total Delays ( > 1 min )
14
Codeshares
30
Average Delay (min.)
31.142857142857142
Standard Deviation
35
Min
0
Max
121

AS 4551 On-Time Performance Details

Overall Rating
2.2 of 5
Average
Percentage On-Time 73%
Average Delay Time 31.142857142857142 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.
On-Time Performance Rating
1.5 of 5
Poor
Percentage On-Time 73%
This flight has an on-time performance of 73%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 31.142857142857142 min
This flight has an average delay of 31.142857142857142 minutes with a standard deviation of 35 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.

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