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(DL) Delta Air Lines 1521 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(MSP) Minneapolis-Saint Paul International Airport

Minneapolis, MN, US

(YYZ) Toronto Pearson International Airport

Toronto, ON, CA

On-Time Performance Chart

(using rounded numbers)
On-Time
20
77%
Late
2
8%
Very Late
0
0%
Excessive
3
12%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
25
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
35.2
Standard Deviation
46.6
Min
0
Max
148

DL 1521 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 80%
Average Delay Time 35.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 65% of all other flights in the FlightStats database.
On-Time Performance Rating
3.9 of 5
Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 79% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 35.2 min
This flight has an average delay of 35.2 minutes with a standard deviation of 46.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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