(UA) United Airlines 1503 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(FAT) Fresno Yosemite International Airport

Fresno, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

44%

Late

13%

Very Late

13%

Excessive

31%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

54.61538461538461

Standard Deviation

56.3

Min

Max

200

UA 1503 On-Time Performance Details

Overall Rating

0.3 of 5

Very Poor

Percentage On-Time 44%

Average Delay Time 54.61538461538461 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 4% of all other flights in the FlightStats database.

On-Time Performance Rating

0.0 of 5

Very Poor

Percentage On-Time 44%

This flight has an on-time performance of 44%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.

Delay Performance

0.5 of 5

Very Poor

Average Delay Time 54.61538461538461 min

This flight has an average delay of 54.61538461538461 minutes with a standard deviation of 56.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.