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Flight Reliability

UA 5546 · United Airlines

Denver → Colorado Springs (DEN–COS)95% of its flights flew this route. The rest (ORD–SGF) are included in these numbers.

77
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
6 min
Average arrival delay
2.8%
Cancelled
7 min early
Median arrival delay

Based on 356 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 5546 departing between 6–9 AM arrived on time 94% of the time, versus 79% between 3–6 PM.

Friday is doing you no favors.

UA 5546 arrived on time 86% of the time on Thursdays and just 68% on Fridays. That gap is worth planning around.

A bit ahead of the DEN–COS route.

UA 5546 arrived on time 80% of the time, versus 76% across the DEN–COS route.

Trending in the right direction.

UA 5546 arrived on time 87% of the time over the last three months in the data, compared with 79% in the three months before that.

The breakdown

On-time by weekday
  • Mon82%(51 flights)
  • Tue74%(50 flights)
  • Wed84%(51 flights)
  • Thu86%(49 flights)
  • Fri68%(50 flights)
  • Sat83%(48 flights)
  • Sun81%(47 flights)
On-time by departure window
  • 6–9 AM94%(18 flights)
  • 3–6 PM79%(328 flights)
On-time trend by month
87%
May

Jun 91% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202591%23
July 202545%29
August 202568%31
September 202583%30
October 202584%31
November 202596%22
December 202581%31
January 202671%31
February 202685%27
March 202687%30
April 202687%30
May 202687%31
Departures on time
82%
Diverted
0%
Flights flown
346
Months covered
12

Same route, other flights

Keep nerding

Based on 356 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.