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(UA) United Airlines 351 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(DEN) Denver International Airport

Denver, CO, US

(TUS) Tucson International Airport

Tucson, AZ, US

On-Time Performance Chart

(using rounded numbers)
On-Time
10
83%
Late
1
8%
Very Late
0
0%
Excessive
1
8%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
12
Total Delays ( > 1 min )
6
Codeshares
0
Average Delay (min.)
17.5
Standard Deviation
22.1
Min
0
Max
61

UA 351 On-Time Performance Details

Overall Rating
3.7 of 5
Good
Percentage On-Time 83%
Average Delay Time 17.5 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.7 shows that this flight has on-time performance characteristics better than 73% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
Percentage On-Time 83%
This flight has an on-time performance of 83%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.
Delay Performance
3.8 of 5
Good
Average Delay Time 17.5 min
This flight has an average delay of 17.5 minutes with a standard deviation of 22.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.

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