Best Time to Fly PIE to DSM: On-Time Stats by Hour & Airline
St Pete Clearwater International → Des Moines International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.8% of St. Petersburg (PIE) to Des Moines (DSM) flights arrived on time (186 scheduled flights). That is 2.2 points above the national average of 77.6%.
Allegiant Air was the only reporting airline with regular flights on this route.
May has been the best month (84% on time) and Sunday the weakest day of the week (65%).
1.6% of flights were cancelled, versus 1.8% nationally.
PIE to DSM 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 |
|---|---|---|---|---|
| Allegiant Air | 79.8% | 86 min | 1.6% | 186 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PIE to DSM
On-time arrival % by scheduled departure hour (local time), 416 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 88.2% | 2.8% | 36 |
| 7am–8am | Limited data | 9 | |
| 8am–9am | Limited data | 23 | |
| 9am–10am | Limited data | 2 | |
| 10am–11am | Limited data | 19 | |
| 11am–12pm | 89.2% | 2.6% | 38 |
| 12pm–1pm | Limited data | 30 | |
| 1pm–2pm | Limited data | 26 | |
| 2pm–3pm | Limited data | 19 | |
| 3pm–4pm | Limited data | 24 | |
| 4pm–5pm | 68.8% | 3.0% | 33 |
| 5pm–6pm | Limited data | 14 | |
| 6pm–7pm | Limited data | 8 | |
| 7pm–8pm | Limited data | 17 | |
| 8pm–9pm | 61.9% | 0.9% | 106 |
| 9pm–10pm | Limited data | 12 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PIE to DSM
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) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 20 | ||
| Summer peak (Jun 15 - Aug 15) | 72.5% | -6.2 pts | 1.1% | 92 |
| All other days | 78.8% | — | 1.4% | 292 |
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).