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(DL) Delta Air Lines 5399 On-Time Performance Rating

Date Range:

15-May-2026 to 15-Jul-2026

(JFK) New York John F. Kennedy International Airport

New York, NY, US

(PWM) Portland International Jetport

Portland, ME, US

On-Time Performance Chart

(using rounded numbers)
On-Time
29
74%
Late
2
5%
Very Late
3
8%
Excessive
5
13%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
39
Total Delays ( > 1 min )
16
Codeshares
39
Average Delay (min.)
53.9375
Standard Deviation
101.3
Min
0
Max
417

DL 5399 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 74%
Average Delay Time 53.9375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 28% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. 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
0.6 of 5
Poor
Average Delay Time 53.9375 min
This flight has an average delay of 53.9375 minutes with a standard deviation of 101.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 12% of other flights.

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