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(UA) United Airlines 5421 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(DEN) Denver International Airport

Denver, CO, US

(LBB) Lubbock Preston Smith International Airport

Lubbock, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
53
85%
Late
4
6%
Very Late
3
5%
Excessive
1
2%
Cancelled
0
0%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
14
Codeshares
61
Average Delay (min.)
30.571428571428573
Standard Deviation
41.6
Min
0
Max
168

UA 5421 On-Time Performance Details

Overall Rating
3.9 of 5
Good
Percentage On-Time 87%
Average Delay Time 30.571428571428573 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.9 shows that this flight has on-time performance characteristics better than 77% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 87%
This flight has an on-time performance of 87%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 97% of other flights.
Delay Performance
2.9 of 5
Average
Average Delay Time 30.571428571428573 min
This flight has an average delay of 30.571428571428573 minutes with a standard deviation of 41.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 58% of other flights.