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Flight Reliability

UA 728 · United Airlines

Columbus → Denver (CMH–DEN)95% of its flights flew this route. The rest (DEN–SJC) are included in these numbers.

90
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
6 min
Average arrival delay
1.0%
Cancelled
8 min early
Median arrival delay

Based on 384 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 86% of the time, against 82% between 9 AM–12 PM.

Tuesdays have been rough.

UA 728 arrived on time 92% of the time on Saturdays and just 74% on Tuesdays. That gap is worth planning around.

A bit ahead of the CMH–DEN route.

UA 728 arrived on time 86% of the time, versus 79% across the CMH–DEN route.

A bit ahead of the United Airlines network.

UA 728 arrived on time 86% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon87%(55 flights)
  • Tue74%(54 flights)
  • Wed91%(54 flights)
  • Thu84%(55 flights)
  • Fri87%(55 flights)
  • Sat92%(52 flights)
  • Sun84%(55 flights)
On-time by departure window
  • 6–9 AM86%(341 flights)
  • 9 AM–12 PM82%(38 flights)
  • 12–3 PM—(1 flights)
On-time trend by month
97%
May

Jun 80% → May 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202587%31
August 202584%31
September 202597%30
October 202590%30
November 202583%30
December 202569%45
January 202682%34
February 202693%28
March 202677%30
April 202697%30
May 202697%31
Departures on time
88%
Diverted
0%
Flights flown
380
Months covered
12

Same route, other flights

Keep nerding

Based on 384 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.