background

(UA) United Airlines 604 On-Time Performance Rating

Date Range:

15-Apr-2026 to 15-Jun-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
52
80%
Late
5
8%
Very Late
2
3%
Excessive
2
3%
Cancelled
0
0%
Diverted
4
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
61
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
23.842105263157894
Standard Deviation
35.7
Min
0
Max
131

UA 604 On-Time Performance Details

Overall Rating
4.1 of 5
Good
Percentage On-Time 85%
Average Delay Time 23.842105263157894 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.1 shows that this flight has on-time performance characteristics better than 80% of all other flights in the FlightStats database.
On-Time Performance Rating
4.5 of 5
Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 90% of other flights.
Delay Performance
3.6 of 5
Good
Average Delay Time 23.842105263157894 min
This flight has an average delay of 23.842105263157894 minutes with a standard deviation of 35.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.

Other Stops for UA 604