Best Time to Fly MCI to DEN: On-Time Stats by Hour & Airline
Kansas City International → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.5% of Kansas City (MCI) to Denver (DEN) flights arrived on time (4,327 scheduled flights). That is in line with the national average of 77.6%.
SkyWest Airlines was the most punctual of the 4 airlines on the route at 88.8%, while Southwest Airlines trailed at 74.4%.
November has been the best month (84% on time) and Friday the weakest day of the week (75%).
0.5% of flights were cancelled, versus 1.8% nationally.
MCI to DEN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 88.8% | 106 min | 0.2% | 394 |
| United Airlines | 79.3% | 58 min | 0.5% | 1,297 |
| Frontier Airlines | 78.8% | 120 min | 0.4% | 280 |
| Southwest Airlines | 74.4% | 56 min | 0.6% | 2,356 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MCI to DEN
On-time arrival % by scheduled departure hour (local time), 8,448 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 89.4% | 1.2% | 249 |
| 6am–7am | 93.5% | 0.9% | 1,110 |
| 7am–8am | 95.2% | 2.3% | 128 |
| 8am–9am | 83.3% | 1.1% | 465 |
| 9am–10am | 74.3% | 0.1% | 864 |
| 10am–11am | 91.7% | 0.4% | 231 |
| 11am–12pm | 85.6% | 0.4% | 676 |
| 12pm–1pm | 87.5% | 0.4% | 267 |
| 1pm–2pm | 83.1% | 0.5% | 1,037 |
| 2pm–3pm | 82.0% | 0.7% | 405 |
| 3pm–4pm | 61.1% | 0.5% | 418 |
| 4pm–5pm | 58.2% | 1.3% | 224 |
| 5pm–6pm | 59.9% | 0.9% | 1,178 |
| 6pm–7pm | 68.8% | 1.6% | 251 |
| 7pm–8pm | 62.9% | 0.2% | 456 |
| 8pm–9pm | 68.2% | 1.8% | 327 |
| 9pm–10pm | 71.8% | 2.4% | 127 |
| 10pm–11pm | 67.7% | 2.9% | 35 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MCI to DEN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 75.5% | -3.3 pts | 0.6% | 164 |
| Christmas & New Year (Dec 20 - Jan 3) | 85.3% | +6.6 pts | 0.3% | 335 |
| Summer peak (Jun 15 - Aug 15) | 69.6% | -9.1 pts | 0.9% | 1,618 |
| All other days | 78.7% | — | 0.8% | 6,331 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).