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

Date Range:

01-Jul-2026 to 31-Aug-2026

(LAX) Los Angeles International Airport

Los Angeles, CA, US

(BOI) Boise Air Terminal

Boise, ID, US

On-Time Performance Chart

(using rounded numbers)
On-Time
51
85%
Late
2
3%
Very Late
1
2%
Excessive
6
10%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
12
Codeshares
60
Average Delay (min.)
43.833333333333336
Standard Deviation
35.9
Min
0
Max
116

DL 4148 On-Time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 85%
Average Delay Time 43.833333333333336 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 65% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. 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
1.7 of 5
Average
Average Delay Time 43.833333333333336 min
This flight has an average delay of 43.833333333333336 minutes with a standard deviation of 35.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.