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(DL) Delta Air Lines 3509 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(PSC) Tri-Cities Airport

Pasco, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
57
97%
Late
1
2%
Very Late
0
0%
Excessive
1
2%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
12
Codeshares
59
Average Delay (min.)
10.916666666666666
Standard Deviation
21.7
Min
0
Max
78

DL 3509 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 97%
Average Delay Time 10.916666666666666 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.9 shows that this flight has on-time performance characteristics better than 96% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 97%
This flight has an on-time performance of 97%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.7 of 5
Very Good
Average Delay Time 10.916666666666666 min
This flight has an average delay of 10.916666666666666 minutes with a standard deviation of 21.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 95% of other flights.

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