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(UA) United Airlines 2121 On-Time Performance Rating

Date Range:

15-Apr-2025 to 15-Jun-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
16
73%
Late
1
5%
Very Late
0
0%
Excessive
4
18%
Cancelled
0
0%
Diverted
1
5%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
21
Total Delays ( > 1 min )
11
Codeshares
0
Average Delay (min.)
71.0909090909091
Standard Deviation
96.4
Min
0
Max
257

UA 2121 On-Time Performance Details

Overall Rating
1.2 of 5
Poor
Percentage On-Time 76%
Average Delay Time 71.0909090909091 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 22% of all other flights in the FlightStats database.
On-Time Performance Rating
2.3 of 5
Average
Percentage On-Time 76%
This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 46% of other flights.
Delay Performance
0.0 of 5
Very Poor
Average Delay Time 71.0909090909091 min
This flight has an average delay of 71.0909090909091 minutes with a standard deviation of 96.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.

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