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(UA) United Airlines 311 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(BOS) Boston Logan International Airport

Boston, MA, US

(LAX) Los Angeles International Airport

Los Angeles, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
44
94%
Late
1
2%
Very Late
0
0%
Excessive
2
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
30.375
Standard Deviation
36.9
Min
0
Max
93

UA 311 On-Time Performance Details

Overall Rating
4.2 of 5
Good
Percentage On-Time 94%
Average Delay Time 30.375 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.2 shows that this flight has on-time performance characteristics better than 82% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 94%
This flight has an on-time performance of 94%. 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
3.3 of 5
Average
Average Delay Time 30.375 min
This flight has an average delay of 30.375 minutes with a standard deviation of 36.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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