Route Reliability
Newark → Louisville
EWR–SDF · 642 miles · Newark Liberty International Airport to Louisville Muhammad Ali International Airport
- 82%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 4.7%
- Cancelled
- 970
- Flights in the data
Data through May 2026.
Airlines on this route
- United Airlines82% on time · 948 flights
- Spirit Airlines71% on time · 22 flights
Too little history on this route to call a winner. We rank airlines only after 100 flights each.
What the data says
Morning flights do better here.
EWR–SDF flights departing between 9 AM–12 PM arrived on time 88% of the time, versus 48% between 12–3 PM.
Sunday scaries are real for this one.
EWR–SDF flights arrived on time 85% of the time on Thursdays. On Sundays: 74%.
Keep a backup plan handy.
This route was cancelled 4.7% of the time. Typical for U.S. flights is around 1–2%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon83%(134 flights)
- Tue84%(130 flights)
- Wed84%(131 flights)
- Thu85%(134 flights)
- Fri81%(137 flights)
- Sat83%(125 flights)
- Sun74%(132 flights)
- 6–9 AM—(4 flights)
- 9 AM–12 PM88%(332 flights)
- 12–3 PM48%(27 flights)
- 3–6 PM84%(203 flights)
- 6–9 PM77%(278 flights)
- 9 PM–12 AM81%(79 flights)
Jun 79% → May 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 67 |
| July 2025 | 78% | 68 |
| August 2025 | 83% | 64 |
| September 2025 | 89% | 61 |
| October 2025 | 76% | 91 |
| November 2025 | 76% | 78 |
| December 2025 | 76% | 70 |
| January 2026 | 85% | 79 |
| February 2026 | 89% | 75 |
| March 2026 | 77% | 87 |
| April 2026 | 86% | 91 |
| May 2026 | 91% | 92 |
Same trip, other airports
Keep nerding
Based on 970 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.