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(DL) Delta Air Lines 1539 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(DFW) Dallas Fort Worth International Airport

Dallas, TX, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
17
71%
Late
2
8%
Very Late
2
8%
Excessive
3
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
24
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
56
Standard Deviation
71.6
Min
0
Max
209

DL 1539 On-Time Performance Details

Overall Rating
0.8 of 5
Poor
Percentage On-Time 71%
Average Delay Time 56 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.8 shows that this flight has on-time performance characteristics better than 15% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 71%
This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
0.4 of 5
Very Poor
Average Delay Time 56 min
This flight has an average delay of 56 minutes with a standard deviation of 71.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.

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