(DL) Delta Air Lines 3856 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(BUF) Buffalo Niagara International Airport

Buffalo, NY, US

(DTW) Detroit Metropolitan Wayne County Airport

Detroit, MI, US

On-Time Performance Chart

(using rounded numbers)

On-Time

87%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

26.4

Standard Deviation

38.2

Min

Max

DL 3856 On-Time Performance Details

Overall Rating

3.7 of 5

Good

Percentage On-Time 87%

Average Delay Time 26.4 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.7 shows that this flight has on-time performance characteristics better than 72% of all other flights in the FlightStats database.

On-Time Performance Rating

4.2 of 5

Good

Percentage On-Time 87%

This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 84% of other flights.

Delay Performance

3.1 of 5

Average

Average Delay Time 26.4 min

This flight has an average delay of 26.4 minutes with a standard deviation of 38.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.