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(AS) Alaska Airlines 2121 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(FCA) Glacier Park International Airport

Kalispell, MT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
30
68%
Late
7
16%
Very Late
4
9%
Excessive
3
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
44
Total Delays ( > 1 min )
16
Codeshares
44
Average Delay (min.)
33.9375
Standard Deviation
23.3
Min
0
Max
102

AS 2121 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 68%
Average Delay Time 33.9375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 68%
This flight has an on-time performance of 68%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 33.9375 min
This flight has an average delay of 33.9375 minutes with a standard deviation of 23.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.