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(UA) United Airlines 4177 On-Time Performance Rating

Date Range:

01-Mar-2025 to 30-Apr-2025

(PWM) Portland International Jetport

Portland, ME, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
20
77%
Late
1
4%
Very Late
0
0%
Excessive
5
19%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
26
Total Delays ( > 1 min )
9
Codeshares
26
Average Delay (min.)
88
Standard Deviation
95.6
Min
0
Max
243

UA 4177 On-Time Performance Details

Overall Rating
1.0 of 5
Poor
Percentage On-Time 77%
Average Delay Time 88 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 18% of all other flights in the FlightStats database.
On-Time Performance Rating
1.9 of 5
Average
Percentage On-Time 77%
This flight has an on-time performance of 77%. 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
0.0 of 5
Very Poor
Average Delay Time 88 min
This flight has an average delay of 88 minutes with a standard deviation of 95.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.

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