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(UA) United Airlines 550 On-Time Performance Rating

Date Range:

15-Dec-2025 to 15-Feb-2026

(YYC) Calgary International Airport

Calgary, AB, CA

(DEN) Denver International Airport

Denver, CO, US

On-Time Performance Chart

(using rounded numbers)
On-Time
51
82%
Late
1
2%
Very Late
1
2%
Excessive
7
11%
Cancelled
0
0%
Diverted
2
3%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
60
Total Delays ( > 1 min )
13
Codeshares
0
Average Delay (min.)
59.69230769230769
Standard Deviation
65.1
Min
0
Max
203

UA 550 On-Time Performance Details

Overall Rating
2.6 of 5
Average
Percentage On-Time 85%
Average Delay Time 59.69230769230769 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.6 shows that this flight has on-time performance characteristics better than 51% of all other flights in the FlightStats database.
On-Time Performance Rating
4.9 of 5
Very Good
Percentage On-Time 85%
This flight has an on-time performance of 85%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 98% of other flights.
Delay Performance
0.3 of 5
Very Poor
Average Delay Time 59.69230769230769 min
This flight has an average delay of 59.69230769230769 minutes with a standard deviation of 65.1 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 5% of other flights.

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