background

(UA) United Airlines 277 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(SFO) San Francisco International Airport

San Francisco, CA, US

(PDX) Portland International Airport

Portland, OR, US

On-Time Performance Chart

(using rounded numbers)
On-Time
27
96%
Late
0
0%
Very Late
0
0%
Excessive
0
0%
Cancelled
1
4%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
28
Total Delays ( > 1 min )
7
Codeshares
0
Average Delay (min.)
5.571428571428571
Standard Deviation
3.4
Min
0
Max
11

UA 277 On-Time Performance Details

Overall Rating
4.8 of 5
Very Good
Percentage On-Time 96%
Average Delay Time 5.571428571428571 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.8 shows that this flight has on-time performance characteristics better than 95% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 96%
This flight has an on-time performance of 96%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.
Delay Performance
4.6 of 5
Very Good
Average Delay Time 5.571428571428571 min
This flight has an average delay of 5.571428571428571 minutes with a standard deviation of 3.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 92% of other flights.

Other Stops for UA 277