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(AS) Alaska Airlines 531 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(PDX) Portland International Airport

Portland, OR, US

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
83%
Late
2
5%
Very Late
0
0%
Excessive
4
10%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
39
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
34
Standard Deviation
24.4
Min
0
Max
69

AS 531 On-Time Performance Details

Overall Rating
3.1 of 5
Average
Percentage On-Time 85%
Average Delay Time 34 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
4.1 of 5
Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 82% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 34 min
This flight has an average delay of 34 minutes with a standard deviation of 24.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.