(UA) United Airlines 477 On-Time Performance Rating

Date Range:

15-Jan-2026 to 15-Mar-2026

(IAH) Houston George Bush Intercontinental Airport

Houston, TX, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

81%

Late

10%

Very Late

10%

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

18.25

Standard Deviation

13.6

Min

Max

UA 477 On-Time Performance Details

Overall Rating

3.8 of 5

Good

Percentage On-Time 81%

Average Delay Time 18.25 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 74% of all other flights in the FlightStats database.

On-Time Performance Rating

3.6 of 5

Good

Percentage On-Time 81%

This flight has an on-time performance of 81%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 73% of other flights.

Delay Performance

3.9 of 5

Good

Average Delay Time 18.25 min

This flight has an average delay of 18.25 minutes with a standard deviation of 13.6 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.