(DL) Delta Air Lines 6921 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(YOW) Ottawa Macdonald-Cartier International Airport

Ottawa, ON, CA

(YYC) Calgary International Airport

Calgary, AB, CA

On-Time Performance Chart

(using rounded numbers)

On-Time

88%

Late

Very Late

Excessive

12%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

114.2

Min

Max

265

DL 6921 On-Time Performance Details

Overall Rating

2.4 of 5

Average

Percentage On-Time 88%

Average Delay Time 81 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.4 shows that this flight has on-time performance characteristics better than 47% of all other flights in the FlightStats database.

On-Time Performance Rating

4.6 of 5

Very Good

Percentage On-Time 88%

This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.

Delay Performance

0.2 of 5

Very Poor

Average Delay Time 81 min

This flight has an average delay of 81 minutes with a standard deviation of 114.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 4% of other flights.