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(DL) Delta Air Lines 3979 On-Time Performance Rating

Date Range:

01-Dec-2025 to 31-Jan-2026

(SJC) San Jose Mineta International Airport

San Jose, CA, US

(LAX) Los Angeles International Airport

Los Angeles, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
55
96%
Late
0
0%
Very Late
0
0%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
7
Codeshares
57
Average Delay (min.)
134.57142857142858
Standard Deviation
338.9
Min
0
Max
903

DL 3979 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 97%
Average Delay Time 134.57142857142858 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 97%
This flight has an on-time performance of 97%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 134.57142857142858 min
This flight has an average delay of 134.57142857142858 minutes with a standard deviation of 338.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.