(QR) Qatar Airways 8521 On-Time Performance Rating

Date Range:

01-Oct-2025 to 30-Nov-2025

(MEL) Melbourne Tullamarine Airport

Melbourne, VIC, AU

(SYD) Sydney Kingsford Smith International Airport

Sydney, NSW, AU

On-Time Performance Chart

(using rounded numbers)

On-Time

80%

Late

Very Late

20%

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

20.666666666666668

Standard Deviation

20.2

Min

Max

QR 8521 On-Time Performance Details

Overall Rating

3.2 of 5

Average

Percentage On-Time 80%

Average Delay Time 20.666666666666668 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 63% of all other flights in the FlightStats database.

On-Time Performance Rating

3.1 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 62% of other flights.

Delay Performance

3.3 of 5

Average

Average Delay Time 20.666666666666668 min

This flight has an average delay of 20.666666666666668 minutes with a standard deviation of 20.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.