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(DL) Delta Air Lines 50 On-Time Performance Rating

Date Range:

15-Jun-2025 to 15-Aug-2025

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

(LHR) London Heathrow Airport

London, EN, GB

On-Time Performance Chart

(using rounded numbers)
On-Time
30
68%
Late
1
2%
Very Late
4
9%
Excessive
6
14%
Cancelled
2
5%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
43
Total Delays ( > 1 min )
18
Codeshares
0
Average Delay (min.)
53.55555555555556
Standard Deviation
68.5
Min
0
Max
224

DL 50 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 70%
Average Delay Time 53.55555555555556 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.5 shows that this flight has on-time performance characteristics better than 29% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.7 of 5
Poor
Average Delay Time 53.55555555555556 min
This flight has an average delay of 53.55555555555556 minutes with a standard deviation of 68.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 14% of other flights.