(UA) United Airlines 4437 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(EWR) Newark Liberty International Airport

Newark, NJ, US

(ACK) Nantucket Memorial Airport

Nantucket, MA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

61%

Late

Very Late

Excessive

28%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

76.75

Standard Deviation

60.3

Min

Max

183

UA 4437 On-Time Performance Details

Overall Rating

0.5 of 5

Very Poor

Percentage On-Time 61%

Average Delay Time 76.75 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 0.5 shows that this flight has on-time performance characteristics better than 8% of all other flights in the FlightStats database.

On-Time Performance Rating

0.8 of 5

Poor

Percentage On-Time 61%

This flight has an on-time performance of 61%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 16% of other flights.

Delay Performance

0.1 of 5

Very Poor

Average Delay Time 76.75 min

This flight has an average delay of 76.75 minutes with a standard deviation of 60.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 3% of other flights.