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(AS) Alaska Airlines 5277 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(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
35
58%
Late
13
22%
Very Late
6
10%
Excessive
5
8%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
34
Codeshares
60
Average Delay (min.)
32.970588235294116
Standard Deviation
44.2
Min
0
Max
233

AS 5277 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 58%
Average Delay Time 32.970588235294116 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 58%
This flight has an on-time performance of 58%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 32.970588235294116 min
This flight has an average delay of 32.970588235294116 minutes with a standard deviation of 44.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.