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(DL) Delta Air Lines 7857 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(ICN) Seoul Incheon International Airport

Seoul, KR

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
37
61%
Late
8
13%
Very Late
7
11%
Excessive
9
15%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
43
Codeshares
61
Average Delay (min.)
29.697674418604652
Standard Deviation
34.7
Min
0
Max
189

DL 7857 On-Time Performance Details

Overall Rating
2.0 of 5
Average
Percentage On-Time 61%
Average Delay Time 29.697674418604652 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2 shows that this flight has on-time performance characteristics better than 38% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 61%
This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 1% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 29.697674418604652 min
This flight has an average delay of 29.697674418604652 minutes with a standard deviation of 34.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.