(UA) United Airlines 1909 On-Time Performance Rating

Date Range:

15-Jul-2025 to 15-Sep-2025

(BOS) Boston Logan International Airport

Boston, MA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

79%

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.)

29.333333333333332

Standard Deviation

27.4

Min

Max

UA 1909 On-Time Performance Details

Overall Rating

3.3 of 5

Average

Percentage On-Time 79%

Average Delay Time 29.333333333333332 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.3 shows that this flight has on-time performance characteristics better than 65% of all other flights in the FlightStats database.

On-Time Performance Rating

3.5 of 5

Average

Percentage On-Time 79%

This flight has an on-time performance of 79%. 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

3.1 of 5

Average

Average Delay Time 29.333333333333332 min

This flight has an average delay of 29.333333333333332 minutes with a standard deviation of 27.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.