background

(TP) TAP Air Portugal 4259 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(PHL) Philadelphia International Airport

Philadelphia, PA, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
38
70%
Late
4
7%
Very Late
3
6%
Excessive
6
11%
Cancelled
3
6%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
54
Total Delays ( > 1 min )
22
Codeshares
54
Average Delay (min.)
31.863636363636363
Standard Deviation
28.3
Min
0
Max
105

TP 4259 On-Time Performance Details

Overall Rating
1.8 of 5
Average
Percentage On-Time 70%
Average Delay Time 31.863636363636363 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 34% of all other flights in the FlightStats database.
On-Time Performance Rating
0.8 of 5
Poor
Percentage On-Time 70%
This flight has an on-time performance of 70%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.
Delay Performance
2.7 of 5
Average
Average Delay Time 31.863636363636363 min
This flight has an average delay of 31.863636363636363 minutes with a standard deviation of 28.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 54% of other flights.