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(DL) Delta Air Lines 4311 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(EKO) Elko Regional Airport

Elko, NV, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)
On-Time
60
97%
Late
0
0%
Very Late
0
0%
Excessive
1
2%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
3
Codeshares
61
Average Delay (min.)
308
Standard Deviation
524
Min
0
Max
913

DL 4311 On-Time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 98%
Average Delay Time 308 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 98%
This flight has an on-time performance of 98%. 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 308 min
This flight has an average delay of 308 minutes with a standard deviation of 524 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.