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(DL) Delta Air Lines 1187 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
46
78%
Late
3
5%
Very Late
2
3%
Excessive
6
10%
Cancelled
1
2%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
13
Codeshares
0
Average Delay (min.)
59.84615384615385
Standard Deviation
49.1
Min
0
Max
145

DL 1187 On-Time Performance Details

Overall Rating
1.5 of 5
Poor
Percentage On-Time 78%
Average Delay Time 59.84615384615385 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
2.9 of 5
Average
Percentage On-Time 78%
This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
0.1 of 5
Very Poor
Average Delay Time 59.84615384615385 min
This flight has an average delay of 59.84615384615385 minutes with a standard deviation of 49.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 2% of other flights.