Route Reliability
Columbus → Denver
CMH–DEN · 1,154 miles · John Glenn Columbus International Airport to Denver International Airport
- 79%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0.7%
- Cancelled
- 1,766
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines83%729 flights
- 2.Southwest Airlines78%924 flights
- 3.Frontier Airlines67%113 flights
What the data says
Morning flights do better here.
CMH–DEN flights departing between 3–6 AM arrived on time 93% of the time, versus 65% between 6–9 PM.
Thursday is the weak spot.
CMH–DEN flights arrived on time 85% of the time on Wednesdays. On Thursdays: 76%.
United Airlines has a clear lead on this route.
United Airlines arrived on time 83% of the time on this route; Frontier Airlines managed 67%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(269 flights)
- Tue78%(229 flights)
- Wed85%(222 flights)
- Thu76%(271 flights)
- Fri78%(274 flights)
- Sat83%(204 flights)
- Sun78%(276 flights)
- 3–6 AM93%(150 flights)
- 6–9 AM89%(546 flights)
- 9 AM–12 PM92%(50 flights)
- 12–3 PM75%(135 flights)
- 3–6 PM75%(455 flights)
- 6–9 PM65%(409 flights)
Jun 67% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 152 |
| July 2025 | 71% | 157 |
| August 2025 | 74% | 147 |
| September 2025 | 88% | 145 |
| October 2025 | 82% | 165 |
| November 2025 | 81% | 141 |
| December 2025 | 67% | 141 |
| January 2026 | 86% | 124 |
| February 2026 | 88% | 126 |
| March 2026 | 75% | 146 |
| April 2026 | 91% | 149 |
| May 2026 | 82% | 152 |
Keep nerding
Based on 1,766 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.