Best Time to Fly DEN to FSD: On-Time Stats by Hour & Airline
Denver International → Joe Foss Field
Data through July 2026 · Last updated October 18, 2026
1,819 flights were scheduled from Denver (DEN) to Sioux Falls (FSD) in the last 12 months, and 82.4% of those that flew arrived on time, 4.8 points above the US average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 84.9%, while Frontier Airlines trailed at 76.0%.
October has been the best month (90% on time) and Monday the weakest day of the week (79%).
0.9% of flights were cancelled, versus 1.8% nationally.
DEN to FSD 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 | 84.9% | 80 min | 0.9% | 1,303 |
| United Airlines | 76.0% | 78 min | 1.1% | 366 |
| Frontier Airlines | 76.0% | 81 min | 0.0% | 150 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to FSD
On-time arrival % by scheduled departure hour (local time), 3,620 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 81.0% | 1.0% | 101 |
| 8am–9am | 94.2% | 0.0% | 172 |
| 9am–10am | 84.7% | 0.0% | 326 |
| 10am–11am | 84.5% | 0.6% | 511 |
| 11am–12pm | 77.0% | 0.0% | 74 |
| 12pm–1pm | Limited data | 21 | |
| 1pm–2pm | 86.2% | 0.7% | 738 |
| 2pm–3pm | Limited data | 7 | |
| 3pm–4pm | 65.9% | 0.8% | 132 |
| 4pm–5pm | 75.5% | 0.0% | 49 |
| 5pm–6pm | 75.1% | 0.5% | 552 |
| 6pm–7pm | 70.9% | 1.9% | 211 |
| 8pm–9pm | 79.3% | 1.7% | 352 |
| 9pm–10pm | 76.7% | 1.3% | 374 |
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 FSD
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) | 78.6% | -4.1 pts | 0.0% | 56 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.1% | -4.5 pts | 3.0% | 133 |
| Summer peak (Jun 15 - Aug 15) | 74.6% | -8.1 pts | 0.8% | 743 |
| All other days | 82.6% | — | 0.7% | 2,688 |
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).