Washington Dulles International ⇄ Louisville Muhammad Ali International IAD–SDF
Airlines flew 2,339 flights between Washington Dulles International IAD in Washington, DC and Louisville Muhammad Ali International SDF in Louisville, KY 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 76 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.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 153 |
| 2/25 | 151 |
| 3/25 | 220 |
| 4/25 | 202 |
| 5/25 | 229 |
| 6/25 | 217 |
| 7/25 | 285 |
| 8/25 | 259 |
| 9/25 | 208 |
| 10/25 | 171 |
| 11/25 | 157 |
| 12/25 | 171 |
| 1/26 | 163 |
| 2/26 | 147 |
| 3/26 | 171 |
| 4/26 | 181 |
| 5/26 | 242 |
| 6/26 | 234 |
| 7/26 | 235 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 6,095 |
| 2/25 | 6,279 |
| 3/25 | 10,592 |
| 4/25 | 9,544 |
| 5/25 | 11,803 |
| 6/25 | 11,392 |
| 7/25 | 13,393 |
| 8/25 | 9,957 |
| 9/25 | 9,297 |
| 10/25 | 7,623 |
| 11/25 | 6,748 |
| 12/25 | 7,002 |
| 1/26 | 5,999 |
| 2/26 | 6,187 |
| 3/26 | 7,258 |
| 4/26 | 7,113 |
| 5/26 | 9,777 |
| 6/26 | 11,036 |
| 7/26 | 11,098 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Mesa Airlines Inc. YV | 1,293 | 73,430 | 77% | scheduled passenger service |
| United Parcel Service 5X | 569 | 0 | scheduled cargo service | |
| Republic Airline YX | 466 | 24,912 | 70% | scheduled passenger service |
| United Air Lines Inc. UA | 6 | 624 | 67% | scheduled passenger service |
| CFM Inc d/b/a Contour Airlines d/b/a One Jet Shuttle LF | 3 | 26 | 65% | charter passenger service |
| GoJet Airlines LLC d/b/a United Express G7 | 1 | 42 | 84% | scheduled passenger service |
| PSA Airlines Inc. OH | 1 | 61 | 80% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Embraer ERJ-175 | 1,757 | 74 | 98,231 |
| Boeing 767-300/300ER | 406 | 0 | 0 |
| McDonnell Douglas MD-11 | 101 | 0 | 0 |
| Boeing 757-200 | 61 | 0 | 0 |
| Embraer-Emb-170 | 2 | 70 | 111 |
| Bombardier Challenger 604/605 | 2 | 16 | 26 |
| Boeing 737-900ER | 2 | 179 | 252 |
| Bombardier CRJ550 | 1 | 50 | 42 |
| Boeing 737-700/700LR/Max 7 | 1 | 126 | 118 |
| Airbus Industrie A300-600/R/CF/RCF | 1 | 0 | 0 |
| Airbus Industrie A320-100/200 | 1 | 150 | 119 |
| Boeing 737-800 | 1 | 166 | 75 |
| Canadair CRJ 900 | 1 | 76 | 61 |
| Cessna 510 Mustang/560XL Citation Excel | 1 | 8 | 0 |
| Airbus Industrie A319 | 1 | 126 | 60 |
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.
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.
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: Washington Dulles International IAD and Louisville Muhammad Ali International SDF; all routes.