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(DL) Delta Air Lines 3859 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(GTF) Great Falls International Airport

Great Falls, MT, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
54
92%
Late
0
0%
Very Late
3
5%
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 )
9
Codeshares
59
Average Delay (min.)
25.88888888888889
Standard Deviation
22.6
Min
0
Max
59

DL 3859 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 92%
Average Delay Time 25.88888888888889 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 84% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 92%
This flight has an on-time performance of 92%. 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
3.5 of 5
Average
Average Delay Time 25.88888888888889 min
This flight has an average delay of 25.88888888888889 minutes with a standard deviation of 22.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.

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