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(DL) Delta Air Lines 4127 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(BOI) Boise Air Terminal

Boise, ID, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
52
88%
Late
4
7%
Very Late
2
3%
Excessive
0
0%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
17
Codeshares
59
Average Delay (min.)
13.294117647058824
Standard Deviation
11.5
Min
0
Max
37

DL 4127 On-Time Performance Details

Overall Rating
4.9 of 5
Very Good
Percentage On-Time 88%
Average Delay Time 13.294117647058824 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.9 shows that this flight has on-time performance characteristics better than 96% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very 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 99% of other flights.
Delay Performance
4.7 of 5
Very Good
Average Delay Time 13.294117647058824 min
This flight has an average delay of 13.294117647058824 minutes with a standard deviation of 11.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 93% of other flights.

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