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Flight Reliability

UA 5809 · United Airlines

CPR → Denver (CPR–DEN)92% of its flights flew this route. The rest (GSP–DEN) are included in these numbers.

64
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
23 min
Average arrival delay
1.1%
Cancelled
3 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Skip Thursday if you can.

UA 5809 arrived on time 75% of the time on Mondays. On Thursdays: 61%.

Lagging the CPR–DEN route.

UA 5809 arrived on time 68% of the time, versus 81% across the CPR–DEN route.

Lagging the United Airlines network.

UA 5809 arrived on time 68% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon75%(52 flights)
  • Tue72%(50 flights)
  • Wed71%(52 flights)
  • Thu61%(51 flights)
  • Fri64%(50 flights)
  • Sat63%(51 flights)
  • Sun72%(53 flights)
On-time trend by month
74%
May

Jun 30% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202530%30
July 202542%31
August 202529%31
September 202572%29
October 202577%31
November 202586%28
December 202574%31
January 202680%30
February 202685%27
March 202687%30
April 202687%30
May 202674%31
Departures on time
73%
Diverted
0.3%
Flights flown
359
Months covered
12

Same route, other flights

Keep nerding

Based on 364 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.