Best Time to Fly SDF to EWR: On-Time Stats by Hour & Airline
Louisville Muhammad Ali International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
992 flights were scheduled from Louisville (SDF) to Newark (EWR) in the last 12 months, and 86.9% of those that flew arrived on time, 9.2 points above the US average of 77.6%.
Republic Airways was the only reporting airline with regular flights on this route.
October has been the best month (93% on time) and Sunday the weakest day of the week (82%).
4.3% of flights were cancelled, versus 1.8% nationally.
SDF to EWR 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 | 87.0% | 67 min | 4.4% | 985 |
| Spirit Airlines | Limited data | 4 | ||
| United Airlines | Limited data | 3 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SDF to EWR
On-time arrival % by scheduled departure hour (local time), 1,924 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 90.5% | 3.0% | 558 |
| 7am–8am | 89.7% | 1.1% | 88 |
| 8am–9am | 93.3% | 1.9% | 258 |
| 9am–10am | 86.2% | 3.0% | 67 |
| 10am–11am | 97.0% | 4.3% | 70 |
| 11am–12pm | 88.8% | 3.0% | 203 |
| 12pm–1pm | 84.8% | 5.5% | 127 |
| 1pm–2pm | 75.2% | 5.2% | 327 |
| 2pm–3pm | 82.1% | 7.0% | 115 |
| 3pm–4pm | 63.5% | 10.8% | 83 |
| 4pm–5pm | Limited data | 18 | |
| 6pm–7pm | Limited data | 1 | |
| 7pm–8pm | Limited data | 7 | |
| 8pm–9pm | 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 SDF to EWR
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) | 78.4% | -8.4 pts | 0.0% | 37 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.8% | -4.9 pts | 1.8% | 56 |
| Summer peak (Jun 15 - Aug 15) | 83.8% | -2.9 pts | 7.2% | 320 |
| All other days | 86.7% | — | 3.5% | 1,511 |
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).