(UA) United Airlines 255 On-Time Performance Rating

Date Range:

01-Nov-2025 to 31-Dec-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(BWI) Baltimore Washington International Airport

Baltimore, MD, US

On-Time Performance Chart

(using rounded numbers)

On-Time

75%

Late

13%

Very Late

Excessive

13%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

42.57142857142857

Standard Deviation

64.7

Min

Max

185

UA 255 On-Time Performance Details

Overall Rating

2.2 of 5

Average

Percentage On-Time 75%

Average Delay Time 42.57142857142857 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.2 shows that this flight has on-time performance characteristics better than 43% of all other flights in the FlightStats database.

On-Time Performance Rating

2.7 of 5

Average

Percentage On-Time 75%

This flight has an on-time performance of 75%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.

Delay Performance

1.7 of 5

Average

Average Delay Time 42.57142857142857 min

This flight has an average delay of 42.57142857142857 minutes with a standard deviation of 64.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 34% of other flights.