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(DL) Delta Air Lines 3994 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(SJC) San Jose Mineta International Airport

San Jose, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
8
67%
Late
0
0%
Very Late
0
0%
Excessive
4
33%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
12
Total Delays ( > 1 min )
5
Codeshares
12
Average Delay (min.)
62.2
Standard Deviation
37.4
Min
0
Max
116

DL 3994 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 67%
Average Delay Time 62.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 62.2 min
This flight has an average delay of 62.2 minutes with a standard deviation of 37.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.

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