(UA) United Airlines 4399 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(SYR) Syracuse Hancock International Airport

Syracuse, NY, US

On-Time Performance Chart

(using rounded numbers)

On-Time

78%

Late

Very Late

Excessive

Cancelled

11%

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

11.833333333333334

Standard Deviation

12.4

Min

Max

UA 4399 On-Time Performance Details

Overall Rating

3.4 of 5

Average

Percentage On-Time 78%

Average Delay Time 11.833333333333334 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 3.4 shows that this flight has on-time performance characteristics better than 67% of all other flights in the FlightStats database.

On-Time Performance Rating

2.7 of 5

Average

Percentage On-Time 78%

This flight has an on-time performance of 78%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 54% of other flights.

Delay Performance

4.1 of 5

Good

Average Delay Time 11.833333333333334 min

This flight has an average delay of 11.833333333333334 minutes with a standard deviation of 12.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 82% of other flights.