Route Reliability
Boston → Louisville
BOS–SDF · 829 miles · Boston Logan International Airport to Louisville Muhammad Ali International Airport
- 86%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 1.6%
- Cancelled
- 707
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines87%347 flights
- 2.American Airlines86%360 flights
What the data says
Morning flights do better here.
BOS–SDF flights departing between 6–9 AM arrived on time 89% of the time, versus 71% between 3–6 PM.
Wednesday comes out ahead.
A small edge: 90% on time on Wednesdays against 83% on Fridays.
Not much between Delta Air Lines and American Airlines.
On this route they all land within 86% to 87% on time. Pick on schedule and price.
Trending in the right direction.
BOS–SDF flights arrived on time 90% of the time over the last three months in the data, compared with 78% in the three months before that.
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
- Mon89%(99 flights)
- Tue85%(99 flights)
- Wed90%(102 flights)
- Thu84%(100 flights)
- Fri83%(102 flights)
- Sat90%(88 flights)
- Sun85%(103 flights)
- 6–9 AM89%(88 flights)
- 9 AM–12 PM89%(325 flights)
- 12–3 PM85%(245 flights)
- 3–6 PM71%(35 flights)
Jun 85% → May 89% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 85% | 59 |
| July 2025 | 88% | 59 |
| August 2025 | 87% | 61 |
| September 2025 | 92% | 60 |
| October 2025 | 85% | 61 |
| November 2025 | 92% | 59 |
| December 2025 | 75% | 56 |
| January 2026 | 78% | 46 |
| February 2026 | 80% | 45 |
| March 2026 | 92% | 61 |
| April 2026 | 90% | 62 |
| May 2026 | 89% | 64 |
Keep nerding
Based on 707 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.