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(DL) Delta Air Lines 851 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
30
71%
Late
3
7%
Very Late
2
5%
Excessive
6
14%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
41
Total Delays ( > 1 min )
17
Codeshares
0
Average Delay (min.)
35.411764705882355
Standard Deviation
29.5
Min
0
Max
97

DL 851 On-Time Performance Details

Overall Rating
2.3 of 5
Average
Percentage On-Time 73%
Average Delay Time 35.411764705882355 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 45% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 73%
This flight has an on-time performance of 73%. 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
2.3 of 5
Average
Average Delay Time 35.411764705882355 min
This flight has an average delay of 35.411764705882355 minutes with a standard deviation of 29.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.