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(UA) United Airlines 1278 On-Time Performance Rating

Date Range:

15-Nov-2025 to 15-Jan-2026

(SMF) Sacramento International Airport

Sacramento, CA, US

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

On-Time Performance Chart

(using rounded numbers)
On-Time
31
78%
Late
1
3%
Very Late
1
3%
Excessive
5
13%
Cancelled
2
5%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
40
Total Delays ( > 1 min )
14
Codeshares
0
Average Delay (min.)
31.5
Standard Deviation
34.5
Min
0
Max
124

UA 1278 On-Time Performance Details

Overall Rating
3.4 of 5
Average
Percentage On-Time 78%
Average Delay Time 31.5 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 66% of all other flights in the FlightStats database.
On-Time Performance Rating
3.6 of 5
Good
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 73% of other flights.
Delay Performance
3.1 of 5
Average
Average Delay Time 31.5 min
This flight has an average delay of 31.5 minutes with a standard deviation of 34.5 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 62% of other flights.

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