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(DL) Delta Air Lines 4086 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(BZN) Bozeman Yellowstone International Airport

Bozeman, MT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
94%
Late
1
6%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
4
Codeshares
16
Average Delay (min.)
8.75
Standard Deviation
7.8
Min
0
Max
19

DL 4086 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 94%
Average Delay Time 8.75 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 89% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 94%
This flight has an on-time performance of 94%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
4.1 of 5
Good
Average Delay Time 8.75 min
This flight has an average delay of 8.75 minutes with a standard deviation of 7.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.

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