Best Time to Fly FSD to DEN: On-Time Stats by Hour & Airline
Joe Foss Field → Denver International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.4% of Sioux Falls (FSD) to Denver (DEN) flights arrived on time (1,820 scheduled flights). That is 2.8 points above the national average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 83.1%, while Frontier Airlines trailed at 72.0%.
October has been the best month (85% on time) and Thursday the weakest day of the week (77%).
1.3% of flights were cancelled, versus 1.8% nationally.
FSD 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 | 83.1% | 101 min | 1.3% | 1,304 |
| United Airlines | 74.4% | 61 min | 1.9% | 366 |
| Frontier Airlines | 72.0% | 105 min | 0.0% | 150 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly FSD to DEN
On-time arrival % by scheduled departure hour (local time), 3,621 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 87.3% | 3.7% | 82 |
| 6am–7am | 91.2% | 0.6% | 642 |
| 8am–9am | 70.4% | 1.8% | 55 |
| 9am–10am | 69.5% | 1.0% | 675 |
| 11am–12pm | 88.8% | 0.7% | 269 |
| 12pm–1pm | Limited data | 20 | |
| 1pm–2pm | 89.6% | 0.6% | 628 |
| 2pm–3pm | 79.9% | 0.4% | 261 |
| 3pm–4pm | Limited data | 19 | |
| 4pm–5pm | 66.3% | 1.1% | 90 |
| 5pm–6pm | 66.9% | 1.5% | 655 |
| 6pm–7pm | 54.5% | 3.9% | 103 |
| 7pm–8pm | 46.7% | 0.0% | 45 |
| 8pm–9pm | 74.3% | 1.3% | 75 |
| 10pm–11pm | 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 FSD 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) | 62.5% | -17.3 pts | 0.0% | 56 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.5% | +0.6 pts | 3.8% | 133 |
| Summer peak (Jun 15 - Aug 15) | 73.7% | -6.2 pts | 1.4% | 742 |
| All other days | 79.8% | — | 0.9% | 2,690 |
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).