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(DL) Delta Air Lines 4139 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(ATL) Atlanta Hartsfield-Jackson International Airport

Atlanta, GA, US

(MOB) Mobile Regional Airport

Mobile, AL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
11
61%
Late
2
11%
Very Late
2
11%
Excessive
3
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
18
Total Delays ( > 1 min )
11
Codeshares
18
Average Delay (min.)
57.45454545454545
Standard Deviation
92.8
Min
0
Max
323

DL 4139 On-Time Performance Details

Overall Rating
0.3 of 5
Very Poor
Percentage On-Time 61%
Average Delay Time 57.45454545454545 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 5% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.4 of 5
Very Poor
Average Delay Time 57.45454545454545 min
This flight has an average delay of 57.45454545454545 minutes with a standard deviation of 92.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 8% of other flights.

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