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(DL) Delta Air Lines 3978 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(MFE) McAllen Miller International Airport

McAllen, TX, US

(AUS) Austin-Bergstrom International Airport

Austin, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
84%
Late
1
3%
Very Late
1
3%
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 )
8
Codeshares
36
Average Delay (min.)
48.875
Standard Deviation
51.6
Min
0
Max
144

DL 3978 On-Time Performance Details

Overall Rating
3.0 of 5
Average
Percentage On-Time 86%
Average Delay Time 48.875 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 59% of all other flights in the FlightStats database.
On-Time Performance Rating
4.8 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 96% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 48.875 min
This flight has an average delay of 48.875 minutes with a standard deviation of 51.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

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