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(DL) Delta Air Lines 4 On-Time Performance Rating

Date Range:

01-Jun-2025 to 31-Jul-2025

(LHR) London Heathrow Airport

London, EN, GB

(JFK) New York John F. Kennedy International Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
48
79%
Late
2
3%
Very Late
3
5%
Excessive
6
10%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
20
Codeshares
0
Average Delay (min.)
38.6
Standard Deviation
40.2
Min
0
Max
140

DL 4 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 80%
Average Delay Time 38.6 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.5 shows that this flight has on-time performance characteristics better than 69% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 80%
This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 95% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 38.6 min
This flight has an average delay of 38.6 minutes with a standard deviation of 40.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.