(UA) United Airlines 5566 On-Time Performance Rating

Date Range:

15-Aug-2026 to 15-Oct-2026

(TUL) Tulsa International Airport

Tulsa, OK, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

71%

Late

Very Late

Excessive

29%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

58.142857142857146

Standard Deviation

73.7

Min

Max

213

UA 5566 On-Time Performance Details

Overall Rating

1.0 of 5

Poor

Percentage On-Time 71%

Average Delay Time 58.142857142857146 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1 shows that this flight has on-time performance characteristics better than 19% of all other flights in the FlightStats database.

On-Time Performance Rating

1.5 of 5

Poor

Percentage On-Time 71%

This flight has an on-time performance of 71%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 31% of other flights.

Delay Performance

0.5 of 5

Very Poor

Average Delay Time 58.142857142857146 min

This flight has an average delay of 58.142857142857146 minutes with a standard deviation of 73.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 10% of other flights.