(UA) United Airlines 5397 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(STL) St Louis Lambert International Airport

Saint Louis, MO, US

On-Time Performance Chart

(using rounded numbers)

On-Time

70%

Late

Very Late

20%

Excessive

Cancelled

Diverted

10%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

14.666666666666666

Standard Deviation

18.2

Min

Max

UA 5397 On-Time Performance Details

Overall Rating

3.0 of 5

Average

Percentage On-Time 78%

Average Delay Time 14.666666666666666 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3 shows that this flight has on-time performance characteristics better than 58% of all other flights in the FlightStats database.

On-Time Performance Rating

2.1 of 5

Average

Percentage On-Time 78%

This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 42% of other flights.

Delay Performance

3.8 of 5

Good

Average Delay Time 14.666666666666666 min

This flight has an average delay of 14.666666666666666 minutes with a standard deviation of 18.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 76% of other flights.