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(UA) United Airlines 1603 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
25
93%
Late
0
0%
Very Late
1
4%
Excessive
1
4%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
27
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
16.25
Standard Deviation
17.9
Min
0
Max
49

UA 1603 On-Time Performance Details

Overall Rating
4.6 of 5
Very Good
Percentage On-Time 93%
Average Delay Time 16.25 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.6 shows that this flight has on-time performance characteristics better than 90% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 93%
This flight has an on-time performance of 93%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 99% of other flights.
Delay Performance
4.2 of 5
Good
Average Delay Time 16.25 min
This flight has an average delay of 16.25 minutes with a standard deviation of 17.9 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 84% of other flights.

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