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(SQ) Singapore Airlines 1544 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-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
29
48%
Late
8
13%
Very Late
2
3%
Excessive
17
28%
Cancelled
4
7%
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.)
53.6764705882353
Standard Deviation
51.1
Min
0
Max
200

SQ 1544 On-Time Performance Details

Overall Rating
0.2 of 5
Very Poor
Percentage On-Time 48%
Average Delay Time 53.6764705882353 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.2 shows that this flight has on-time performance characteristics better than 2% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 48%
This flight has an on-time performance of 48%. 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
0.3 of 5
Very Poor
Average Delay Time 53.6764705882353 min
This flight has an average delay of 53.6764705882353 minutes with a standard deviation of 51.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.