Route Reliability
Kansas City → Denver
MCI–DEN · 533 miles · Kansas City International Airport to Denver International Airport
- 76%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 0.6%
- Cancelled
- 4,233
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines80%1,655 flights
- 2.Frontier Airlines73%245 flights
- 3.Southwest Airlines73%2,333 flights
What the data says
Morning-you made the right choice.
MCI–DEN flights departing between 6–9 AM arrived on time 90% of the time, versus 56% between 3–6 PM.
Friday is doing you no favors.
MCI–DEN flights arrived on time 81% of the time on Saturdays. On Fridays: 73%.
United Airlines has a slight edge here.
United Airlines arrived on time 80% of the time on this route; Southwest Airlines managed 73%.
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
- Mon74%(659 flights)
- Tue78%(563 flights)
- Wed79%(579 flights)
- Thu74%(632 flights)
- Fri73%(662 flights)
- Sat81%(472 flights)
- Sun73%(630 flights)
- 3–6 AM85%(131 flights)
- 6–9 AM90%(899 flights)
- 9 AM–12 PM80%(906 flights)
- 12–3 PM83%(801 flights)
- 3–6 PM56%(877 flights)
- 6–9 PM65%(530 flights)
- 9 PM–12 AM70%(53 flights)
Jun 60% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 376 |
| July 2025 | 63% | 377 |
| August 2025 | 68% | 364 |
| September 2025 | 78% | 361 |
| October 2025 | 74% | 392 |
| November 2025 | 85% | 350 |
| December 2025 | 73% | 334 |
| January 2026 | 86% | 300 |
| February 2026 | 84% | 293 |
| March 2026 | 79% | 335 |
| April 2026 | 80% | 337 |
| May 2026 | 82% | 378 |
Keep nerding
Based on 4,233 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.