(UA) United Airlines 2256 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(SFO) San Francisco International Airport

San Francisco, CA, US

(BOS) Boston Logan International Airport

Boston, MA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

84%

Late

Very Late

Excessive

Cancelled

Diverted

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed

Total Delays ( > 1 min )

Codeshares

Average Delay (min.)

51.36363636363637

Standard Deviation

71.8

Min

Max

202

UA 2256 On-Time Performance Details

Overall Rating

2.7 of 5

Average

Percentage On-Time 84%

Average Delay Time 51.36363636363637 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.7 shows that this flight has on-time performance characteristics better than 53% of all other flights in the FlightStats database.

On-Time Performance Rating

4.6 of 5

Very Good

Percentage On-Time 84%

This flight has an on-time performance of 84%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.

Delay Performance

0.8 of 5

Poor

Average Delay Time 51.36363636363637 min

This flight has an average delay of 51.36363636363637 minutes with a standard deviation of 71.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 16% of other flights.