(QR) Qatar Airways 3991 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

72%

Late

Very Late

Excessive

28%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

54.44444444444444

Standard Deviation

50.8

Min

Max

129

QR 3991 On-Time Performance Details

Overall Rating

1.4 of 5

Poor

Percentage On-Time 72%

Average Delay Time 54.44444444444444 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.4 shows that this flight has on-time performance characteristics better than 26% of all other flights in the FlightStats database.

On-Time Performance Rating

1.9 of 5

Average

Percentage On-Time 72%

This flight has an on-time performance of 72%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 38% of other flights.

Delay Performance

0.8 of 5

Poor

Average Delay Time 54.44444444444444 min

This flight has an average delay of 54.44444444444444 minutes with a standard deviation of 50.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.