The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Ronald Reagan Washington Ntl ⇄ Louisville Muhammad Ali International DCA–SDF

Airlines flew 1,981 flights between Ronald Reagan Washington Ntl DCA in Washington, DC and Louisville Muhammad Ali International SDF in Louisville, KY in the twelve months to July 2026, both directions together: 109,974 passengers in 145,651 seats, 76% of them filled, and 4,125 pounds of freight. 474 miles, about 80 minutes in the air, on 5 airlines: PSA Airlines Inc. (1,042), Republic Airline (892), Envoy Air (24), American Airlines Inc. (16) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

1,981
flights, twelve months
DCA-SDF: 992 · SDF-DCA: 989
109,974
passengers
76% of seats filled
474
miles
about 80 minutes airborne
5
airlines
10 aircraft types

Flights by month both directions

046931401861/254/257/2510/251/264/261647/26
By month, as a table
flights
1/25147
2/25138
3/25169
4/25157
5/25172
6/25151
7/25145
8/25169
9/25183
10/25186
11/25158
12/25117
1/26145
2/26156
3/26177
4/26183
5/26179
6/26164
7/26164

Passengers by month

02,7445,4888,23210,9761/254/257/2510/251/264/269,7627/26
By month, as a table
passengers
1/256,719
2/257,034
3/259,437
4/258,565
5/259,942
6/258,779
7/258,360
8/258,890
9/2510,707
10/2510,976
11/258,512
12/256,195
1/266,198
2/268,439
3/2610,572
4/2610,288
5/269,880
6/269,555
7/269,762

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
PSA Airlines Inc. OH1,04257,16279%scheduled passenger service
Republic Airline YX89248,82572%scheduled passenger service
Envoy Air MQ241,17564%scheduled passenger service
American Airlines Inc. AA162,00678%charter passenger service, scheduled passenger service
Southwest Airlines Co. WN780675%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1759167650,000
Canadair RJ-7006136532,087
Canadair CRJ 9004297625,075
Airbus Industrie A3196128510
Boeing 737-700/700LR/Max 74138363
Airbus Industrie A321Neoxlr4190748
Boeing 737-8004174464
Airbus Industrie A320-100/2002150186
Airbus Industrie A321-200n2196369
Boeing B737 Max 8001175172

DCA → SDF this direction alone · flown January 2025 to July 2026

992 flights of 1,035 scheduled, 55,489 passengers in 73,005 seats, 197 pounds of freight. PSA Airlines Inc. 525; Republic Airline 442; Envoy Air 12; American Airlines Inc. 8; Southwest Airlines Co. 5.

SDF → DCA this direction alone · flown January 2025 to July 2026

989 flights of 1,028 scheduled, 54,485 passengers in 72,646 seats, 3,928 pounds of freight. PSA Airlines Inc. 517; Republic Airline 450; Envoy Air 12; American Airlines Inc. 8; Southwest Airlines Co. 2.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Ronald Reagan Washington Ntl DCA and Louisville Muhammad Ali International SDF; all routes.