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(DL) Delta Air Lines 4939 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-2025

(LGA) New York LaGuardia Airport

New York, NY, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
44
86%
Late
1
2%
Very Late
0
0%
Excessive
5
10%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
51
Total Delays ( > 1 min )
8
Codeshares
51
Average Delay (min.)
69.375
Standard Deviation
75.1
Min
0
Max
238

DL 4939 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 86%
Average Delay Time 69.375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 50% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
0.2 of 5
Very Poor
Average Delay Time 69.375 min
This flight has an average delay of 69.375 minutes with a standard deviation of 75.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.

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