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

Date Range:

01-Jul-2025 to 31-Aug-2025

(PSC) Tri-Cities Airport

Pasco, WA, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
56
95%
Late
0
0%
Very Late
1
2%
Excessive
2
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
8
Codeshares
59
Average Delay (min.)
21.625
Standard Deviation
20.5
Min
0
Max
52

DL 3509 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 95%
Average Delay Time 21.625 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 95%
This flight has an on-time performance of 95%. 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
3.9 of 5
Good
Average Delay Time 21.625 min
This flight has an average delay of 21.625 minutes with a standard deviation of 20.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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