Boston (BOS) to Louisville (SDF) flights
Republic Airline, Envoy Air fly nonstop from Boston Logan International Airport to Louisville Muhammad Ali International Airport, with about 14 flights a week in July 2026. The 829-mile flight takes about 2h 38m gate to gate.
- Distance
- 829 mi · 1,334 km
- Flight time
- 2h 38m
- Airlines
- 2
- Seats filled
- 68%
Airlines flying BOS to SDF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 9 | Embraer E175 | 23,476 | 2h 39m |
| Envoy Air | 5 | Embraer E175 | 12,339 | 2h 36m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
BOS to SDF flight schedule
3 flight numbers flew this route in August 2026, 1 of them almost daily. The first usually leaves at 9:30am and the last at 2:03pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| DL 5615Delta Air Lines · operated by Republic Airline | 9:30am | 12:12pm | 31 | 86% |
| AA 4786American Airlines · operated by Republic Airline | 1:24pm | 4:04pm | 8 | 86% |
| AA 4110American Airlines · operated by Envoy Air | 2:03pm | 4:40pm | 19 | 84% |
Is BOS to SDF on time?
From September 2025 to August 2026, 85% of 709 flights arrived within 15 minutes of schedule and 1.7% were cancelled. Flights leaving around 10am were the most punctual (89%), those around 1pm the least (79%). Most delay time was caused by late-arriving aircraft (38%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 360 | 86% | 9 min | 1.7% |
| Delta Air Lines | 349 | 84% | 8 min | 1.7% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 7am to 8am | 78 | 88% | |
| 9am to 10am | 180 | 86% | |
| 10am to 11am | 171 | 89% | |
| 11am to 12pm | 18 | 83% | |
| 12pm to 1pm | 56 | 86% | |
| 1pm to 2pm | 102 | 79% | |
| 2pm to 3pm | 60 | 85% | |
| 3pm to 4pm | 17 | 71% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 61 | 3,690 | |
| September 2025 | 62 | 3,931 | |
| October 2025 | 61 | 4,025 | |
| November 2025 | 59 | 2,981 | |
| December 2025 | 57 | 2,615 | |
| January 2026 | 46 | 1,247 | |
| February 2026 | 45 | 1,532 | |
| March 2026 | 61 | 2,373 | |
| April 2026 | 62 | 3,093 | |
| May 2026 | 64 | 3,094 | |
| June 2026 | 60 | 3,492 | |
| July 2026 | 61 | 4,001 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.