background

(DL) Delta Air Lines 1278 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(PDX) Portland International Airport

Portland, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
4
67%
Late
1
17%
Very Late
0
0%
Excessive
1
17%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
6
Total Delays ( > 1 min )
3
Codeshares
0
Average Delay (min.)
55.333333333333336
Standard Deviation
77.8
Min
0
Max
145

DL 1278 On-Time Performance Details

Overall Rating
1.3 of 5
Poor
Percentage On-Time 67%
Average Delay Time 55.333333333333336 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.3 shows that this flight has on-time performance characteristics better than 25% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 67%
This flight has an on-time performance of 67%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
1.2 of 5
Poor
Average Delay Time 55.333333333333336 min
This flight has an average delay of 55.333333333333336 minutes with a standard deviation of 77.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 24% of other flights.

Other Stops for DL 1278