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(UA) United Airlines 1278 On-Time Performance Rating

Date Range:

15-Feb-2026 to 15-Apr-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(SAT) San Antonio International Airport

San Antonio, TX, US

On-Time Performance Chart

(using rounded numbers)
On-Time
9
56%
Late
2
13%
Very Late
2
13%
Excessive
3
19%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
16
Total Delays ( > 1 min )
8
Codeshares
0
Average Delay (min.)
50
Standard Deviation
49.3
Min
0
Max
160

UA 1278 On-Time Performance Details

Overall Rating
0.5 of 5
Very Poor
Percentage On-Time 56%
Average Delay Time 50 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 9% of all other flights in the FlightStats database.
On-Time Performance Rating
0.1 of 5
Very Poor
Percentage On-Time 56%
This flight has an on-time performance of 56%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 2% of other flights.
Delay Performance
0.9 of 5
Poor
Average Delay Time 50 min
This flight has an average delay of 50 minutes with a standard deviation of 49.3 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 18% of other flights.

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