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(TP) TAP Air Portugal 4399 On-Time Performance Rating

Date Range:

01-Sep-2025 to 31-Oct-2025

(BOS) Boston Logan International Airport

Boston, MA, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
42
74%
Late
4
7%
Very Late
1
2%
Excessive
9
16%
Cancelled
1
2%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
57
Total Delays ( > 1 min )
20
Codeshares
57
Average Delay (min.)
77.5
Standard Deviation
90.8
Min
0
Max
305

TP 4399 On-Time Performance Details

Overall Rating
0.6 of 5
Poor
Percentage On-Time 74%
Average Delay Time 77.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.6 shows that this flight has on-time performance characteristics better than 11% of all other flights in the FlightStats database.
On-Time Performance Rating
1.2 of 5
Poor
Percentage On-Time 74%
This flight has an on-time performance of 74%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 24% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 77.5 min
This flight has an average delay of 77.5 minutes with a standard deviation of 90.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.