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(DL) Delta Air Lines 3521 On-Time Performance Rating

Date Range:

01-Mar-2025 to 30-Apr-2025

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(MFR) Rogue Valley International-Medford Airport

Medford, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
21
88%
Late
2
8%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
1
4%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
23
Total Delays ( > 1 min )
4
Codeshares
23
Average Delay (min.)
10.75
Standard Deviation
7.5
Min
0
Max
18

DL 3521 On-Time Performance Details

Overall Rating
4.3 of 5
Good
Percentage On-Time 91%
Average Delay Time 10.75 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.3 shows that this flight has on-time performance characteristics better than 85% of all other flights in the FlightStats database.
On-Time Performance Rating
4.7 of 5
Very Good
Percentage On-Time 91%
This flight has an on-time performance of 91%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 95% of other flights.
Delay Performance
3.9 of 5
Good
Average Delay Time 10.75 min
This flight has an average delay of 10.75 minutes with a standard deviation of 7.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.

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