(QR) Qatar Airways 8521 On-Time Performance Rating

Date Range:

01-Jul-2026 to 31-Aug-2026

(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

71%

Late

14%

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

27.333333333333332

Standard Deviation

19.6

Min

Max

QR 8521 On-Time Performance Details

Overall Rating

2.7 of 5

Average

Percentage On-Time 71%

Average Delay Time 27.333333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 53% of all other flights in the FlightStats database.

On-Time Performance Rating

2.3 of 5

Average

Percentage On-Time 71%

This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.

Delay Performance

3.1 of 5

Average

Average Delay Time 27.333333333333332 min

This flight has an average delay of 27.333333333333332 minutes with a standard deviation of 19.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.