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(UA) United Airlines 1851 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(BOS) Boston Logan International Airport

Boston, MA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
12
60%
Late
4
20%
Very Late
0
0%
Excessive
4
20%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
20
Total Delays ( > 1 min )
10
Codeshares
0
Average Delay (min.)
74.2
Standard Deviation
108.9
Min
0
Max
356

UA 1851 On-Time Performance Details

Overall Rating
0.1 of 5
Very Poor
Percentage On-Time 60%
Average Delay Time 74.2 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.1 shows that this flight has on-time performance characteristics better than 1% of all other flights in the FlightStats database.
On-Time Performance Rating
0.2 of 5
Very Poor
Percentage On-Time 60%
This flight has an on-time performance of 60%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 4% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 74.2 min
This flight has an average delay of 74.2 minutes with a standard deviation of 108.9 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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