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

Date Range:

01-Nov-2018 to 31-Dec-2018

(LHR) London Heathrow Airport

London, EN, GB

(JFK) John F. Kennedy International Airport

New York, NY, US

On-Time Performance Chart

(using rounded numbers)
On-Time
48
77%
Late
10
16%
Very Late
2
3%
Excessive
1
2%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
62
Total Delays ( > 1 min )
24
Codeshares
0
Average Delay (min.)
18
Standard Deviation
13.5
Min
0
Max
57

DL 4 On-time Performance Details

Overall Rating
3.5 of 5
Average
Percentage On-Time 77%
Average Delay Time 18 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 68% of all other flights in the FlightStats database.
On-time Performance Rating
2.7 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 18 min
This flight has an average delay of 18 minutes with a standard deviation of 13.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.