(UA) United Airlines 4398 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(GRR) Grand Rapids Gerald R. Ford International Airport

Grand Rapids, MI, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)

On-Time

36%

Late

Very Late

Excessive

27%

Cancelled

Diverted

18%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

161.2

Standard Deviation

244.8

Min

Max

592

UA 4398 On-Time Performance Details

Overall Rating

0.0 of 5

Very Poor

Percentage On-Time 44%

Average Delay Time 161.2 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0 shows that this flight has on-time performance characteristics better than 0% 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 1% of other flights.

Delay Performance

0.0 of 5

Very Poor

Average Delay Time 161.2 min

This flight has an average delay of 161.2 minutes with a standard deviation of 244.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 0% of other flights.