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(UA) United Airlines 1277 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
15
75%
Late
1
5%
Very Late
0
0%
Excessive
3
15%
Cancelled
1
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
20
Total Delays ( > 1 min )
4
Codeshares
0
Average Delay (min.)
72.25
Standard Deviation
63.1
Min
0
Max
164

UA 1277 On-Time Performance Details

Overall Rating
1.7 of 5
Average
Percentage On-Time 75%
Average Delay Time 72.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.7 shows that this flight has on-time performance characteristics better than 33% of all other flights in the FlightStats database.
On-Time Performance Rating
2.9 of 5
Average
Percentage On-Time 75%
This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 58% of other flights.
Delay Performance
0.5 of 5
Very Poor
Average Delay Time 72.25 min
This flight has an average delay of 72.25 minutes with a standard deviation of 63.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.

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