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(SQ) Singapore Airlines 4921 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(DEL) Delhi Indira Gandhi International Airport

Delhi, IN

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
6
10%
Late
20
32%
Very Late
20
32%
Excessive
15
24%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
60
Codeshares
61
Average Delay (min.)
34.53333333333333
Standard Deviation
17.8
Min
0
Max
83

SQ 4921 On-Time Performance Details

Overall Rating
0.7 of 5
Poor
Percentage On-Time 10%
Average Delay Time 34.53333333333333 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.7 shows that this flight has on-time performance characteristics better than 13% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 10%
This flight has an on-time performance of 10%. 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
1.4 of 5
Poor
Average Delay Time 34.53333333333333 min
This flight has an average delay of 34.53333333333333 minutes with a standard deviation of 17.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.