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(DL) Delta Air Lines 1 On-Time Performance Rating

Date Range:

01-Aug-2026 to 30-Sep-2026

(JFK) New York John F. Kennedy International Airport

New York, NY, US

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
49
82%
Late
2
3%
Very Late
2
3%
Excessive
6
10%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
66.27272727272727
Standard Deviation
51.5
Min
0
Max
166

DL 1 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 82%
Average Delay Time 66.27272727272727 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.3 shows that this flight has on-time performance characteristics better than 44% of all other flights in the FlightStats database.
On-Time Performance Rating
4.4 of 5
Good
Percentage On-Time 82%
This flight has an on-time performance of 82%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 88% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 66.27272727272727 min
This flight has an average delay of 66.27272727272727 minutes with a standard deviation of 51.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 3% of other flights.