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(DL) Delta Air Lines 4148 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(SNA) John Wayne Airport

Santa Ana, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
18
78%
Late
3
13%
Very Late
2
9%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
9
Codeshares
23
Average Delay (min.)
19.555555555555557
Standard Deviation
11.9
Min
0
Max
42

DL 4148 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 78%
Average Delay Time 19.555555555555557 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-Time Performance Rating
2.9 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 19.555555555555557 min
This flight has an average delay of 19.555555555555557 minutes with a standard deviation of 11.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

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