background

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

Date Range:

15-Feb-2025 to 15-Apr-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
53
85%
Late
3
5%
Very Late
1
2%
Excessive
2
3%
Cancelled
2
3%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
30.555555555555557
Standard Deviation
37.8
Min
0
Max
125

DL 4 On-Time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 87%
Average Delay Time 30.555555555555557 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 87%
This flight has an on-time performance of 87%. 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 30.555555555555557 min
This flight has an average delay of 30.555555555555557 minutes with a standard deviation of 37.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.