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(SQ) Singapore Airlines 1544 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
47
78%
Late
2
3%
Very Late
1
2%
Excessive
10
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
19
Codeshares
60
Average Delay (min.)
54.73684210526316
Standard Deviation
53.4
Min
0
Max
181

SQ 1544 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 78%
Average Delay Time 54.73684210526316 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
3.1 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 54.73684210526316 min
This flight has an average delay of 54.73684210526316 minutes with a standard deviation of 53.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.