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Flight Reliability

UA 5246 · United Airlines

Denver → Colorado Springs (DEN–COS)97% of its flights flew this route. The rest (ORD–PIT, FSD–DEN) are included in these numbers.

91
Nerd Approved
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min early
Average arrival delay
0.3%
Cancelled
10 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 5246 departing between 6–9 AM arrived on time 85% of the time, versus 55% between 12–3 PM.

Thursday is the weak spot.

UA 5246 arrived on time 90% of the time on Mondays. On Thursdays: 77%.

Better than the DEN–COS route average.

UA 5246 arrived on time 84% of the time, versus 76% across the DEN–COS route.

A bit ahead of the United Airlines network.

UA 5246 arrived on time 84% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon90%(52 flights)
  • Tue84%(51 flights)
  • Wed84%(51 flights)
  • Thu77%(52 flights)
  • Fri85%(52 flights)
  • Sat86%(51 flights)
  • Sun83%(53 flights)
On-time by departure window
  • 6–9 AM85%(351 flights)
  • 12–3 PM55%(11 flights)
On-time trend by month
90%
May

Jun 83% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202587%30
August 202587%31
September 202590%30
October 202587%31
November 202583%30
December 202587%31
January 202670%30
February 202689%28
March 202681%31
April 202677%30
May 202690%30
Departures on time
86%
Diverted
0%
Flights flown
362
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.