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

Date Range:

15-Feb-2026 to 15-Apr-2026

(AMS) Amsterdam Schiphol Airport

Amsterdam, NL

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
62%
Late
10
16%
Very Late
4
7%
Excessive
8
13%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
29.941176470588236
Standard Deviation
26.9
Min
0
Max
101

DL 257 On-Time Performance Details

Overall Rating
1.6 of 5
Average
Percentage On-Time 62%
Average Delay Time 29.941176470588236 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 30% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 62%
This flight has an on-time performance of 62%. 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
3.1 of 5
Average
Average Delay Time 29.941176470588236 min
This flight has an average delay of 29.941176470588236 minutes with a standard deviation of 26.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.