Best Time to Fly LGA to DSM: On-Time Stats by Hour & Airline
LaGuardia → Des Moines International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 66.1% of New York (LGA) to Des Moines (DSM) flights arrived on time (260 scheduled flights). That is 11.5 points below the national average of 77.6%.
Republic Airways was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (93% on time) and July the worst month (52%).
The cancellation rate was 3.9% (US average 1.8%).
LGA 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 |
|---|---|---|---|---|
| Republic Airways | 66.1% | 65 min | 3.9% | 260 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGA to DSM
On-time arrival % by scheduled departure hour (local time), 857 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 94.0% | 0.0% | 67 |
| 10am–11am | Limited data | 25 | |
| 11am–12pm | Limited data | 26 | |
| 1pm–2pm | Limited data | 7 | |
| 3pm–4pm | Limited data | 18 | |
| 4pm–5pm | 66.7% | 0.0% | 42 |
| 5pm–6pm | 75.4% | 4.4% | 567 |
| 6pm–7pm | 62.3% | 8.3% | 60 |
| 7pm–8pm | 61.1% | 5.3% | 38 |
| 8pm–9pm | Limited data | 6 | |
| 10pm–11pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on LGA 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 | 23 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 26 | ||
| Summer peak (Jun 15 - Aug 15) | 56.5% | -22.7 pts | 17.9% | 134 |
| All other days | 79.2% | — | 1.6% | 674 |
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).