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(DL) Delta Air Lines 3863 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)
On-Time
28
76%
Late
2
5%
Very Late
3
8%
Excessive
3
8%
Cancelled
0
0%
Diverted
1
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
36
Total Delays ( > 1 min )
13
Codeshares
36
Average Delay (min.)
58.84615384615385
Standard Deviation
96.6
Min
0
Max
347

DL 3863 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 78%
Average Delay Time 58.84615384615385 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.6 shows that this flight has on-time performance characteristics better than 31% 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
0.3 of 5
Very Poor
Average Delay Time 58.84615384615385 min
This flight has an average delay of 58.84615384615385 minutes with a standard deviation of 96.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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