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(UA) United Airlines 2135 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(SEA) Seattle-Tacoma International Airport

Seattle, WA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
54
90%
Late
3
5%
Very Late
0
0%
Excessive
3
5%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
9
Codeshares
0
Average Delay (min.)
79.66666666666667
Standard Deviation
161.1
Min
0
Max
504

UA 2135 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 90%
Average Delay Time 79.66666666666667 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 50% of all other flights in the FlightStats database.
On-Time Performance Rating
5.0 of 5
Very Good
Percentage On-Time 90%
This flight has an on-time performance of 90%. 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
0.1 of 5
Very Poor
Average Delay Time 79.66666666666667 min
This flight has an average delay of 79.66666666666667 minutes with a standard deviation of 161.1 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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