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(DL) Delta Air Lines 852 On-time Performance Rating

Date Range:

15-Jul-2018 to 15-Sep-2018

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(BOS) Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
14
74%
Late
1
5%
Very Late
2
11%
Excessive
2
11%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
19
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
21
Standard Deviation
21.8
Min
0
Max
61

DL 852 On-time Performance Details

Overall Rating
3.3 of 5
Average
Percentage On-Time 74%
Average Delay Time 21 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 64% of all other flights in the FlightStats database.
On-time Performance Rating
2.7 of 5
Average
Percentage On-Time 74%
This flight has an on-time performance of 74%. 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
3.8 of 5
Good
Average Delay Time 21 min
This flight has an average delay of 21 minutes with a standard deviation of 21.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.