Washington (DCA) to Louisville (SDF)
Flight time
≈ 1h 45m
Bearing
267° W
Washington (DCA) to Louisville (SDF) is 472 miles (760 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies DCA–SDF
Filed traffic dataIn June 2026, Republic Airways operated the most departures, one of 4 carriers flying nonstop DCA–SDF; the Embraer E175 was the most common aircraft at 57% of departures; flights ran 79% full.
Departures
164
June 2026
Seats
12,104
both directions
Passengers
9,555
both directions
Load factor
78.9%
RPM ÷ ASM
Who flies DCA–SDF?
Republic Airways operated the most nonstop DCA–SDF departures in June 2026 (94), one of 4 carriers on the route.
- YX
94 departures · 7,144 seats
Share of departures57.3%79.4%
Load
- OH
67 departures · 4,443 seats
Share of departures40.9%76.2%
Load
- AA
2 departures · 380 seats
Share of departures1.2%98.4%
Load
- WN
1 departures · 137 seats
Share of departures0.6%92.7%
Load
What plane flies DCA–SDF?
In June 2026, the Embraer E175 flew 57% of DCA–SDF departures — more than any other aircraft type.
- Embraer E175
94 departures · 79.4% load
57.3% - Bombardier CRJ-700
59 departures · 75.0% load
36.0% - Bombardier CRJ-900
8 departures · 83.4% load
4.9% - Airbus A321
2 departures · 98.4% load
1.2% - Boeing 737-700
1 departures · 92.7% load
0.6%
How has DCA–SDF traffic changed?
Nonstop DCA–SDF departures rose from 145 in July 2025 to 164 in June 2026.
Monthly nonstop DCA–SDF traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
145 departures · 8,360 passengers
82.8%
Load
August 2025
169 departures · 8,890 passengers
75.3%
Load
September 2025
183 departures · 10,707 passengers
82.1%
Load
October 2025
186 departures · 10,976 passengers
82.1%
Load
November 2025
158 departures · 8,512 passengers
74.9%
Load
December 2025
117 departures · 6,195 passengers
71.9%
Load
January 2026
145 departures · 6,198 passengers
59.2%
Load
February 2026
156 departures · 8,439 passengers
72.4%
Load
March 2026
177 departures · 10,572 passengers
77.8%
Load
April 2026
183 departures · 10,288 passengers
73.8%
Load
May 2026
179 departures · 9,880 passengers
73.7%
Load
June 2026
164 departures · 9,555 passengers
78.9%
Load
By direction
Each direction is filed separately — they rarely match.
DCA → SDF
77.3% full
82 departures · 4,704 passengers
SDF → DCA
80.6% full
82 departures · 4,851 passengers
Nonstop DCA–SDF traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Louisville
US
Louisville Muhammad Ali International Airport
Coordinates
38.17°N, 85.74°W
Hemisphere
N · W
Frequently asked
How far is Washington (DCA) from Louisville (SDF)?
DCA to SDF is 472 miles (760 km / 410 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from DCA to SDF?
A nonstop covers the 472-mile great-circle distance in roughly 1h 45m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies DCA–SDF?
In June 2026, the Embraer E175 flew the largest share of departures (57.3%), followed by the Bombardier CRJ-700 (36.0%).
What mileage do I earn flying DCA–SDF?
Distance-based programs credit off the 472-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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