(UA) United Airlines 577 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(PBI) Palm Beach International Airport

West Palm Beach, FL, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

80%

Late

Very Late

Excessive

20%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

114

Standard Deviation

150.4

Min

Max

286

UA 577 On-Time Performance Details

Overall Rating

1.8 of 5

Average

Percentage On-Time 80%

Average Delay Time 114 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.8 shows that this flight has on-time performance characteristics better than 35% of all other flights in the FlightStats database.

On-Time Performance Rating

3.5 of 5

Average

Percentage On-Time 80%

This flight has an on-time performance of 80%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 69% of other flights.

Delay Performance

0.1 of 5

Very Poor

Average Delay Time 114 min

This flight has an average delay of 114 minutes with a standard deviation of 150.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 1% of other flights.