Route Reliability
Louisville → Boston
SDF–BOS · 829 miles · Louisville Muhammad Ali International Airport to Boston Logan International Airport
- 71%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.8%
- 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 Lines72%347 flights
- 2.American Airlines70%360 flights
What the data says
Morning flights do better here.
SDF–BOS flights departing between 6–9 AM arrived on time 100% of the time, versus 64% between 3–6 PM.
Sunday scaries are real for this one.
SDF–BOS flights arrived on time 85% of the time on Saturdays and just 65% on Sundays. That gap is worth planning around.
Not much between Delta Air Lines and American Airlines.
On this route they all land within 70% to 72% on time. Pick on schedule and price.
Recent months have been rougher.
SDF–BOS flights arrived on time 76% of the time over the last three months in the data, compared with 86% 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
- Mon75%(98 flights)
- Tue69%(102 flights)
- Wed69%(100 flights)
- Thu71%(100 flights)
- Fri67%(102 flights)
- Sat85%(89 flights)
- Sun65%(101 flights)
- 6–9 AM100%(16 flights)
- 9 AM–12 PM94%(88 flights)
- 12–3 PM69%(286 flights)
- 3–6 PM64%(292 flights)
- 6–9 PM90%(10 flights)
Jun 53% → May 78% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 53% | 60 |
| July 2025 | 70% | 60 |
| August 2025 | 80% | 60 |
| September 2025 | 39% | 57 |
| October 2025 | 52% | 60 |
| November 2025 | 80% | 59 |
| December 2025 | 88% | 57 |
| January 2026 | 89% | 46 |
| February 2026 | 80% | 46 |
| March 2026 | 84% | 61 |
| April 2026 | 68% | 62 |
| May 2026 | 78% | 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.