Route Reliability
Des Moines → Denver
DSM–DEN · 589 miles · Des Moines International Airport to Denver International Airport
- 84%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.7%
- Cancelled
- 2,325
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Southwest Airlines86%555 flights
- 2.United Airlines84%1,621 flights
- 3.Frontier Airlines76%149 flights
What the data says
Morning flights do better here.
DSM–DEN flights departing between 6–9 AM arrived on time 94% of the time, versus 65% between 6–9 PM.
Friday is doing you no favors.
DSM–DEN flights arrived on time 88% of the time on Sundays. On Fridays: 81%.
Southwest Airlines runs this route best.
Southwest Airlines arrived on time 86% of the time on this route; Frontier Airlines managed 76%.
Ticking up lately.
DSM–DEN flights arrived on time 87% of the time over the last three months in the data, compared with 83% in the three months before that.
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
- Mon83%(356 flights)
- Tue84%(317 flights)
- Wed84%(322 flights)
- Thu84%(327 flights)
- Fri81%(362 flights)
- Sat84%(298 flights)
- Sun88%(322 flights)
- 3–6 AM90%(221 flights)
- 6–9 AM94%(487 flights)
- 9 AM–12 PM85%(537 flights)
- 12–3 PM90%(506 flights)
- 3–6 PM66%(409 flights)
- 6–9 PM65%(144 flights)
Jun 78% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 78% | 213 |
| July 2025 | 75% | 222 |
| August 2025 | 75% | 223 |
| September 2025 | 88% | 223 |
| October 2025 | 90% | 198 |
| November 2025 | 91% | 159 |
| December 2025 | 80% | 167 |
| January 2026 | 85% | 161 |
| February 2026 | 84% | 147 |
| March 2026 | 87% | 186 |
| April 2026 | 91% | 188 |
| May 2026 | 84% | 217 |
Keep nerding
Based on 2,325 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.