background

(DL) Delta Air Lines 4135 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(EUG) Eugene Mahlon Sweet Field Airport

Eugene, OR, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
87%
Late
2
3%
Very Late
2
3%
Excessive
4
7%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
14
Codeshares
61
Average Delay (min.)
32.07142857142857
Standard Deviation
31.9
Min
0
Max
105

DL 4135 On-Time Performance Details

Overall Rating
3.8 of 5
Good
Percentage On-Time 87%
Average Delay Time 32.07142857142857 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 75% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. 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
2.7 of 5
Average
Average Delay Time 32.07142857142857 min
This flight has an average delay of 32.07142857142857 minutes with a standard deviation of 31.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

Other Stops for DL 4135