(UA) United Airlines 4051 On-Time Performance Rating

Date Range:

01-Jan-2026 to 28-Feb-2026

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(MEM) Memphis International Airport

Memphis, TN, US

On-Time Performance Chart

(using rounded numbers)

On-Time

88%

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.)

41.90909090909091

Standard Deviation

64.8

Min

Max

176

UA 4051 On-Time Performance Details

Overall Rating

3.2 of 5

Average

Percentage On-Time 88%

Average Delay Time 41.90909090909091 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.2 shows that this flight has on-time performance characteristics better than 62% of all other flights in the FlightStats database.

On-Time Performance Rating

4.9 of 5

Very Good

Percentage On-Time 88%

This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.

Delay Performance

1.4 of 5

Poor

Average Delay Time 41.90909090909091 min

This flight has an average delay of 41.90909090909091 minutes with a standard deviation of 64.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 27% of other flights.