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(DL) Delta Air Lines 5638 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(MCI) Kansas City International Airport

Kansas City, MO, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
86%
Late
2
4%
Very Late
1
2%
Excessive
2
4%
Cancelled
2
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
49
Total Delays ( > 1 min )
11
Codeshares
49
Average Delay (min.)
31.181818181818183
Standard Deviation
50.5
Min
0
Max
168

DL 5638 On-Time Performance Details

Overall Rating
3.7 of 5
Good
Percentage On-Time 86%
Average Delay Time 31.181818181818183 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 73% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 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 93% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 31.181818181818183 min
This flight has an average delay of 31.181818181818183 minutes with a standard deviation of 50.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.

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