(UA) United Airlines 4398 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(GRB) Green Bay Austin Straubel International Airport

Green Bay, WI, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

88%

Late

Very Late

Excessive

Cancelled

13%

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

Standard Deviation

1.4

Min

Max

UA 4398 On-Time Performance Details

Overall Rating

3.8 of 5

Good

Percentage On-Time 88%

Average Delay Time 10 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.8 shows that this flight has on-time performance characteristics better than 74% of all other flights in the FlightStats database.

On-Time Performance Rating

3.9 of 5

Good

Percentage On-Time 88%

This flight has an on-time performance of 88%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 79% of other flights.

Delay Performance

3.6 of 5

Good

Average Delay Time 10 min

This flight has an average delay of 10 minutes with a standard deviation of 1.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 73% of other flights.