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(AS) Alaska Airlines 5277 On-Time Performance Rating

Date Range:

15-Oct-2025 to 15-Dec-2025

(LHR) London Heathrow Airport

London, EN, GB

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
52
90%
Late
4
7%
Very Late
1
2%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
58
Total Delays ( > 1 min )
19
Codeshares
58
Average Delay (min.)
16.57894736842105
Standard Deviation
15.4
Min
0
Max
68

AS 5277 On-Time Performance Details

Overall Rating
4.8 of 5
Very Good
Percentage On-Time 90%
Average Delay Time 16.57894736842105 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.8 shows that this flight has on-time performance characteristics better than 94% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.5 of 5
Good
Average Delay Time 16.57894736842105 min
This flight has an average delay of 16.57894736842105 minutes with a standard deviation of 15.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 90% of other flights.