(UA) United Airlines 661 On-Time Performance Rating

Date Range:

01-May-2025 to 30-Jun-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SLC) Salt Lake City International Airport

Salt Lake City, UT, US

On-Time Performance Chart

(using rounded numbers)

On-Time

62%

Late

14%

Very Late

Excessive

14%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

49.30434782608695

Standard Deviation

Min

Max

205

UA 661 On-Time Performance Details

Overall Rating

0.3 of 5

Very Poor

Percentage On-Time 62%

Average Delay Time 49.30434782608695 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.3 shows that this flight has on-time performance characteristics better than 5% of all other flights in the FlightStats database.

On-Time Performance Rating

0.1 of 5

Very Poor

Percentage On-Time 62%

This flight has an on-time performance of 62%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.

Delay Performance

0.5 of 5

Very Poor

Average Delay Time 49.30434782608695 min

This flight has an average delay of 49.30434782608695 minutes with a standard deviation of 56 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.