New York (LGA) to Louisville (SDF): On-Time Performance
Data through July 2026
New York (LGA) to Louisville (SDF) effectively runs on two schedules. In September 2024, 96% of arrivals were on time; in June 2025 that fell to 63% — a 33-point seasonal swing. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 72%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 2.6%
- Flights/day
- 2.8
- last 12 months
- Duration
- 2h 29m
- scheduled
- Distance
- 659 mi
Best airline from LGA to SDF
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 86% | 22 min | 2.4% | 83 |
| Republic Airways | 82% | 13 min | 2.7% | 2,626 |
Monthly on-time trend
Best time to fly from LGA to SDF
Aim for departures around 9 a.m. (91% on-time); avoid 5 p.m. departures (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 14 min |
| Tuesdaybest | 86% | 10 min |
| Wednesday | 82% | 15 min |
| Thursday | 82% | 14 min |
| Friday | 79% | 16 min |
| Saturday | 85% | 9 min |
| Sunday | 81% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft40%
- Airline operations28%
- National airspace system25%
- Weather7%
Frequently asked questions
- How often are flights from LGA to SDF delayed?
- 18% of LGA–SDF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from LGA to SDF?
- SkyWest Airlines has the best on-time record on this route at 86%, based on 83 flights. 2 airlines flew LGA–SDF frequently enough to compare in this period.
- What is the best time of day to fly from LGA to SDF?
- Departures around 9 a.m. have the best record (91% on-time), while departures around 5 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LGA to SDF?
- The scheduled LGA–SDF flight time averages 2h 29m over 659 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are LGA to SDF flights cancelled?
- 2.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from LGA to SDF?
- June 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was September 2024 at 96%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 2,729 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.