(UA) United Airlines 1878 On-Time Performance Rating

Date Range:

01-Apr-2025 to 31-May-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SFO) San Francisco International Airport

San Francisco, CA, US

On-Time Performance Chart

(using rounded numbers)

On-Time

90%

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.)

18.7

Standard Deviation

15.2

Min

Max

UA 1878 On-Time Performance Details

Overall Rating

4.5 of 5

Good

Percentage On-Time 92%

Average Delay Time 18.7 min

FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 88% of all other flights in the FlightStats database.

On-Time Performance Rating

5.0 of 5

Very Good

Percentage On-Time 92%

This flight has an on-time performance of 92%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 100% of other flights.

Delay Performance

3.9 of 5

Good

Average Delay Time 18.7 min

This flight has an average delay of 18.7 minutes with a standard deviation of 15.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 79% of other flights.