background

(DL) Delta Air Lines 257 On-Time Performance Rating

Date Range:

01-May-2026 to 30-Jun-2026

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
33
52%
Late
16
25%
Very Late
5
8%
Excessive
7
11%
Cancelled
0
0%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
40
Codeshares
0
Average Delay (min.)
29.35
Standard Deviation
31.2
Min
0
Max
174

DL 257 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 54%
Average Delay Time 29.35 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 54%
This flight has an on-time performance of 54%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
3.5 of 5
Average
Average Delay Time 29.35 min
This flight has an average delay of 29.35 minutes with a standard deviation of 31.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 69% of other flights.