Best Time to Fly LGA to SDF: On-Time Stats by Hour & Airline
LaGuardia → Louisville Muhammad Ali International
Data through July 2026 · Last updated October 18, 2026
1,036 flights were scheduled from New York (LGA) to Louisville (SDF) in the last 12 months, and 80.9% of those that flew arrived on time, 3.3 points above the US average of 77.6%.
Republic Airways was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (87% on time) and July the worst month (73%).
The cancellation rate was 3.7% (US average 1.8%).
LGA to SDF 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 | 81.0% | 58 min | 3.7% | 1,027 |
| SkyWest Airlines | Limited data | 8 | ||
| American Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly LGA to SDF
On-time arrival % by scheduled departure hour (local time), 2,590 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 20 | |
| 8am–9am | 85.4% | 1.4% | 139 |
| 9am–10am | 90.9% | 0.8% | 530 |
| 10am–11am | 88.8% | 1.1% | 181 |
| 11am–12pm | 82.8% | 3.0% | 168 |
| 12pm–1pm | 87.6% | 1.0% | 196 |
| 1pm–2pm | 90.1% | 2.6% | 269 |
| 2pm–3pm | 83.8% | 2.9% | 70 |
| 3pm–4pm | Limited data | 28 | |
| 4pm–5pm | Limited data | 13 | |
| 5pm–6pm | 70.8% | 2.3% | 300 |
| 6pm–7pm | 73.8% | 5.3% | 599 |
| 7pm–8pm | 72.2% | 6.5% | 77 |
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 SDF
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) | 91.7% | +7.9 pts | 0.0% | 48 |
| Christmas & New Year (Dec 20 - Jan 3) | 90.2% | +6.4 pts | 0.0% | 61 |
| Summer peak (Jun 15 - Aug 15) | 74.6% | -9.2 pts | 5.2% | 427 |
| All other days | 83.8% | — | 2.2% | 2,054 |
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).