Best Time to Fly RSW to DEN: On-Time Stats by Hour & Airline
Southwest Florida International → Denver International
Data through July 2026 · Last updated October 18, 2026
1,153 flights were scheduled from Fort Myers (RSW) to Denver (DEN) in the last 12 months, and 83.0% of those that flew arrived on time, 5.3 points above the US average of 77.6%.
United Airlines was the most punctual of the 3 airlines on the route at 87.7%, while Frontier Airlines trailed at 71.9%.
October has been the best month (89% on time) and Saturday the weakest day of the week (77%).
0.3% of flights were cancelled, versus 1.8% nationally.
RSW 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 |
|---|---|---|---|---|
| United Airlines | 87.7% | 79 min | 0.3% | 781 |
| Southwest Airlines | 73.1% | 58 min | 0.3% | 314 |
| Frontier Airlines | 71.9% | 98 min | 1.7% | 58 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly RSW to DEN
On-time arrival % by scheduled departure hour (local time), 2,179 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 7 | |
| 6am–7am | 95.4% | 1.5% | 67 |
| 7am–8am | 90.2% | 0.0% | 51 |
| 8am–9am | 94.8% | 0.7% | 596 |
| 9am–10am | 90.9% | 0.0% | 33 |
| 10am–11am | 86.1% | 1.0% | 103 |
| 11am–12pm | 86.5% | 0.8% | 128 |
| 12pm–1pm | 76.2% | 0.4% | 240 |
| 1pm–2pm | Limited data | 9 | |
| 2pm–3pm | Limited data | 8 | |
| 3pm–4pm | 80.3% | 0.4% | 516 |
| 4pm–5pm | 65.0% | 1.5% | 273 |
| 5pm–6pm | 51.9% | 1.2% | 82 |
| 6pm–7pm | Limited data | 9 | |
| 7pm–8pm | Limited data | 15 | |
| 8pm–9pm | 77.5% | 0.0% | 40 |
| 9pm–10pm | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on RSW 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) | 68.6% | -15.6 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.1% | -11.1 pts | 0.7% | 146 |
| Summer peak (Jun 15 - Aug 15) | 76.2% | -8.0 pts | 0.4% | 257 |
| All other days | 84.2% | — | 0.8% | 1,725 |
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).