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(UA) United Airlines 1634 On-Time Performance Rating

Date Range:

01-Jul-2025 to 31-Aug-2025

(ORD) Chicago O'Hare International Airport

Chicago, IL, US

(IAD) Washington Dulles International Airport

Dulles, VA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
23
46%
Late
7
14%
Very Late
6
12%
Excessive
11
22%
Cancelled
0
0%
Diverted
3
6%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
47
Total Delays ( > 1 min )
34
Codeshares
0
Average Delay (min.)
38.705882352941174
Standard Deviation
36.4
Min
0
Max
154

UA 1634 On-Time Performance Details

Overall Rating
1.1 of 5
Poor
Percentage On-Time 49%
Average Delay Time 38.705882352941174 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 1.1 shows that this flight has on-time performance characteristics better than 20% of all other flights in the FlightStats database.
On-Time Performance Rating
0.0 of 5
Very Poor
Percentage On-Time 49%
This flight has an on-time performance of 49%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 0% of other flights.
Delay Performance
2.1 of 5
Average
Average Delay Time 38.705882352941174 min
This flight has an average delay of 38.705882352941174 minutes with a standard deviation of 36.4 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 42% of other flights.

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