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(DL) Delta Air Lines 166 On-Time Performance Rating

Date Range:

01-Jun-2026 to 31-Jul-2026

(HND) Tokyo Haneda International Airport

Tokyo, JP

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
44
72%
Late
4
7%
Very Late
4
7%
Excessive
7
11%
Cancelled
2
3%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
21
Codeshares
0
Average Delay (min.)
46.523809523809526
Standard Deviation
55.6
Min
0
Max
254

DL 166 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 72%
Average Delay Time 46.523809523809526 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 32% of all other flights in the FlightStats database.
On-Time Performance Rating
2.1 of 5
Average
Percentage On-Time 72%
This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 46.523809523809526 min
This flight has an average delay of 46.523809523809526 minutes with a standard deviation of 55.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.