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(UA) United Airlines 307 On-Time Performance Rating

Date Range:

15-Mar-2026 to 15-May-2026

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(DCA) Ronald Reagan Washington National Airport

Washington, DC, US

On-Time Performance Chart

(using rounded numbers)
On-Time
40
74%
Late
5
9%
Very Late
2
4%
Excessive
4
7%
Cancelled
2
4%
Diverted
1
2%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
53
Total Delays ( > 1 min )
19
Codeshares
0
Average Delay (min.)
31.57894736842105
Standard Deviation
39.2
Min
0
Max
158

UA 307 On-Time Performance Details

Overall Rating
1.9 of 5
Average
Percentage On-Time 76%
Average Delay Time 31.57894736842105 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.9 shows that this flight has on-time performance characteristics better than 36% of all other flights in the FlightStats database.
On-Time Performance Rating
1.4 of 5
Poor
Percentage On-Time 76%
This flight has an on-time performance of 76%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 27% of other flights.
Delay Performance
2.3 of 5
Average
Average Delay Time 31.57894736842105 min
This flight has an average delay of 31.57894736842105 minutes with a standard deviation of 39.2 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 46% of other flights.

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