(UA) United Airlines 648 On-Time Performance Rating

Date Range:

15-Jul-2026 to 15-Sep-2026

(EWR) Newark Liberty International Airport

Newark, NJ, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

64%

Late

Very Late

12%

Excessive

15%

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

36.94736842105263

Standard Deviation

49.7

Min

Max

251

UA 648 On-Time Performance Details

Overall Rating

1.2 of 5

Poor

Percentage On-Time 64%

Average Delay Time 36.94736842105263 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.2 shows that this flight has on-time performance characteristics better than 23% of all other flights in the FlightStats database.

On-Time Performance Rating

0.3 of 5

Very Poor

Percentage On-Time 64%

This flight has an on-time performance of 64%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 5% of other flights.

Delay Performance

2.1 of 5

Average

Average Delay Time 36.94736842105263 min

This flight has an average delay of 36.94736842105263 minutes with a standard deviation of 49.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.