Washington (DCA) to Louisville (SDF) flights
Republic Airline, PSA Airlines fly nonstop from Ronald Reagan Washington National Airport to Louisville Muhammad Ali International Airport, with about 18 flights a week in July 2026. The 474-mile flight takes about 1h 53m gate to gate.
- Distance
- 474 mi · 763 km
- Flight time
- 1h 53m
- Airlines
- 2
- Seats filled
- 76%
Airlines flying DCA to SDF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Republic Airline | 11 | Embraer E175 | 24,747 | 1h 50m |
| PSA Airlines | 7 | Bombardier CRJ700, Bombardier CRJ900 | 28,645 | 1h 56m |
| Envoy AirSeasonal or ended | n/a | Embraer E175 | 591 | 1h 51m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
DCA to SDF flight schedule
3 flight numbers flew this route in August 2026, 3 of them almost daily. The first usually leaves at 8:41am and the last at 7:45pm. 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) |
|---|---|---|---|---|
| AA 5602American Airlines · operated by PSA Airlines | 8:41am | 10:40am | 23 | 76% |
| AA 5135American Airlines · operated by PSA Airlines | 12:59pm | 2:51pm | 23 | 67% |
| AA 4672American Airlines · operated by Republic Airline | 7:45pm | 9:38pm | 31 | 69% |
Is DCA to SDF on time?
From September 2025 to August 2026, 75% of 1,027 flights arrived within 15 minutes of schedule and 5.4% were cancelled. Flights leaving around 7am were the most punctual (90%), those around 2pm the least (64%). Most delay time was caused by late-arriving aircraft (55%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,027 | 75% | 18 min | 5.4% |
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 | 109 | 90% | |
| 8am to 9am | 219 | 81% | |
| 11am to 12pm | 39 | 70% | |
| 12pm to 1pm | 51 | 76% | |
| 1pm to 2pm | 84 | 69% | |
| 2pm to 3pm | 103 | 64% | |
| 3pm to 4pm | 27 | 85% | |
| 5pm to 6pm | 38 | 78% | |
| 7pm to 8pm | 299 | 68% | |
| 8pm to 9pm | 35 | 86% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 83 | 4,349 | |
| September 2025 | 92 | 5,113 | |
| October 2025 | 93 | 5,650 | |
| November 2025 | 79 | 4,450 | |
| December 2025 | 58 | 3,102 | |
| January 2026 | 72 | 3,104 | |
| February 2026 | 79 | 4,328 | |
| March 2026 | 89 | 5,462 | |
| April 2026 | 92 | 5,218 | |
| May 2026 | 89 | 4,771 | |
| June 2026 | 81 | 4,517 | |
| July 2026 | 82 | 4,867 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.