(UA) United Airlines 4254 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(MFE) McAllen Miller International Airport

McAllen, TX, US

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

On-Time Performance Chart

(using rounded numbers)

On-Time

96%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

24.3

Min

Max

UA 4254 On-Time Performance Details

Overall Rating

4.1 of 5

Good

Percentage On-Time 96%

Average Delay Time 21 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 81% of all other flights in the FlightStats database.

On-Time Performance Rating

4.9 of 5

Very Good

Percentage On-Time 96%

This flight has an on-time performance of 96%. 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

3.3 of 5

Average

Average Delay Time 21 min

This flight has an average delay of 21 minutes with a standard deviation of 24.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.