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(DL) Delta Air Lines 1977 On-time Performance Rating

Date Range:

01-Jul-2018 to 31-Aug-2018

(BOS) Logan International Airport

Boston, MA, US

(RDU) Raleigh-Durham International Airport

Raleigh/Durham, NC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
27
77%
Late
1
3%
Very Late
0
0%
Excessive
4
11%
Cancelled
0
0%
Diverted
3
9%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
32
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
59
Standard Deviation
66.6
Min
0
Max
191

DL 1977 On-time Performance Details

Overall Rating
2.5 of 5
Average
Percentage On-Time 84%
Average Delay Time 59 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.5 shows that this flight has on-time performance characteristics better than 49% of all other flights in the FlightStats database.
On-time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 84%
This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 93% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 59 min
This flight has an average delay of 59 minutes with a standard deviation of 66.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 7% of other flights.