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

Louisville Muhammad Ali International ⇄ Washington Dulles International SDF–IAD

Airlines flew 2,339 flights between Louisville Muhammad Ali International SDF in Louisville, KY and Washington Dulles International IAD in Washington, DC in the twelve months to July 2026, both directions together: 99,095 passengers in 131,278 seats, 75% of them filled, and 29,770,360 pounds of freight. 451 miles, about 68 minutes in the air, on 7 airlines: Mesa Airlines Inc. (1,293), United Parcel Service (569), Republic Airline (466), United Air Lines Inc. (6) and 3 more. Planning to fly it yourself? The weather and winds along this route right now.

2,339
flights, twelve months
SDF-IAD: 1,144 · IAD-SDF: 1,195
99,095
passengers
75% of seats filled
451
miles
about 68 minutes airborne
7
airlines
15 aircraft types

Flights by month both directions

0711422142851/254/257/2510/251/264/262357/26
By month, as a table
flights
1/25153
2/25151
3/25220
4/25202
5/25229
6/25217
7/25285
8/25259
9/25208
10/25171
11/25157
12/25171
1/26163
2/26147
3/26171
4/26181
5/26242
6/26234
7/26235

Passengers by month

03,3486,69610,04513,3931/254/257/2510/251/264/2611,0987/26
By month, as a table
passengers
1/256,095
2/256,279
3/2510,592
4/259,544
5/2511,803
6/2511,392
7/2513,393
8/259,957
9/259,297
10/257,623
11/256,748
12/257,002
1/265,999
2/266,187
3/267,258
4/267,113
5/269,777
6/2611,036
7/2611,098

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Mesa Airlines Inc. YV1,29373,43077%scheduled passenger service
United Parcel Service 5X5690scheduled cargo service
Republic Airline YX46624,91270%scheduled passenger service
United Air Lines Inc. UA662467%scheduled passenger service
CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF32665%charter passenger service
PSA Airlines Inc. OH16180%scheduled passenger service
GoJet Airlines LLC d/b/a United Express G714284%scheduled passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Embraer ERJ-1751,7577498,231
Boeing 767-300/300ER40600
McDonnell Douglas MD-1110100
Boeing 757-2006100
Bombardier Challenger 604/60521626
Boeing 737-900ER2179252
Embraer-Emb-170270111
Boeing 737-800116675
Canadair CRJ 90017661
Cessna 510 Mustang/560XL Citation Excel180
Airbus Industrie A319112660
Bombardier CRJ55015042
Boeing 737-700/700LR/Max 71126118
Airbus Industrie A300-600/R/CF/RCF100
Airbus Industrie A320-100/2001150119

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

1,144 flights of 1,144 scheduled, 49,725 passengers in 65,735 seats, 18,953,662 pounds of freight. Mesa Airlines Inc. 645; United Parcel Service 258; Republic Airline 235; United Air Lines Inc. 3; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 2; PSA Airlines Inc. 1.

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

1,195 flights of 1,194 scheduled, 49,370 passengers in 65,543 seats, 10,816,698 pounds of freight, 1,341 pounds of mail. Mesa Airlines Inc. 648; United Parcel Service 311; Republic Airline 231; United Air Lines Inc. 3; GoJet Airlines LLC d/b/a United Express 1; CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle 1.

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: Louisville Muhammad Ali International SDF and Washington Dulles International IAD; all routes.