(DL) Delta Air Lines 8309 On-Time Performance Rating

Date Range:

15-Jun-2026 to 15-Aug-2026

(PRG) Vaclav Havel Airport Prague

Prague, CZ

(CDG) Paris Charles de Gaulle Airport

Paris, FR

On-Time Performance Chart

(using rounded numbers)

On-Time

100%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

7.5

Standard Deviation

2.1

Min

Max

DL 8309 On-Time Performance Details

Overall Rating

4.4 of 5

Good

Percentage On-Time 100%

Average Delay Time 7.5 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.4 shows that this flight has on-time performance characteristics better than 87% of all other flights in the FlightStats database.

On-Time Performance Rating

5.0 of 5

Very Good

Percentage On-Time 100%

This flight has an on-time performance of 100%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.

Delay Performance

3.8 of 5

Good

Average Delay Time 7.5 min

This flight has an average delay of 7.5 minutes with a standard deviation of 2.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.