Best Time to Fly DEN to CLE: On-Time Stats by Hour & Airline
Denver International → Cleveland-Hopkins International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.3% of Denver (DEN) to Cleveland (CLE) flights arrived on time (1,841 scheduled flights). That is 1.3 points below the national average of 77.6%.
Frontier Airlines was the most punctual of the 3 airlines on the route at 84.8%, while Southwest Airlines trailed at 62.6%.
November has been the best month (82% on time) and Friday the weakest day of the week (75%).
0.3% of flights were cancelled, versus 1.8% nationally.
DEN to CLE 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 |
|---|---|---|---|---|
| Frontier Airlines | 84.8% | 49 min | 1.4% | 296 |
| United Airlines | 82.5% | 66 min | 0.0% | 940 |
| Southwest Airlines | 62.6% | 51 min | 0.3% | 605 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to CLE
On-time arrival % by scheduled departure hour (local time), 3,661 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.9% | 0.0% | 37 |
| 6am–7am | 90.8% | 0.4% | 274 |
| 7am–8am | Limited data | 18 | |
| 8am–9am | Limited data | 21 | |
| 9am–10am | 87.5% | 0.0% | 152 |
| 10am–11am | 85.1% | 0.0% | 895 |
| 11am–12pm | 81.5% | 0.6% | 158 |
| 12pm–1pm | 82.2% | 0.0% | 101 |
| 1pm–2pm | 85.6% | 0.3% | 371 |
| 2pm–3pm | 82.7% | 1.0% | 199 |
| 3pm–4pm | 73.1% | 0.0% | 78 |
| 4pm–5pm | Limited data | 22 | |
| 5pm–6pm | 68.4% | 0.3% | 884 |
| 6pm–7pm | 56.9% | 0.5% | 198 |
| 7pm–8pm | 50.0% | 1.0% | 204 |
| 8pm–9pm | 53.1% | 0.0% | 49 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to CLE
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) | 87.5% | +8.9 pts | 0.0% | 72 |
| Christmas & New Year (Dec 20 - Jan 3) | 77.5% | -1.1 pts | 0.0% | 174 |
| Summer peak (Jun 15 - Aug 15) | 70.3% | -8.3 pts | 0.8% | 738 |
| All other days | 78.6% | — | 0.2% | 2,677 |
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).