background

(DL) Delta Air Lines 3999 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(SNA) John Wayne Airport

Santa Ana, CA, US

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
78%
Late
6
19%
Very Late
0
0%
Excessive
1
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
13
Codeshares
32
Average Delay (min.)
22.076923076923077
Standard Deviation
33.6
Min
0
Max
130

DL 3999 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 78%
Average Delay Time 22.076923076923077 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 58% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 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 46% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 22.076923076923077 min
This flight has an average delay of 22.076923076923077 minutes with a standard deviation of 33.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

Other Stops for DL 3999