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

Date Range:

15-Nov-2025 to 15-Jan-2026

(BZN) Bozeman Yellowstone International Airport

Bozeman, MT, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
88%
Late
2
13%
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 )
7
Codeshares
16
Average Delay (min.)
11.571428571428571
Standard Deviation
7.7
Min
0
Max
23

DL 4086 On-Time Performance Details

Overall Rating
4.4 of 5
Good
Percentage On-Time 88%
Average Delay Time 11.571428571428571 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 88%
This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
4.3 of 5
Good
Average Delay Time 11.571428571428571 min
This flight has an average delay of 11.571428571428571 minutes with a standard deviation of 7.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 86% of other flights.

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