St. Louis Lambert International ⇄ Louisville Muhammad Ali International STL–SDF
Airlines flew 533 flights between St. Louis Lambert International STL in St Louis, MO and Louisville Muhammad Ali International SDF in Louisville, KY in the twelve months to July 2026, both directions together: 1,114 passengers in 2,915 seats, 38% of them filled, and 24,898,228 pounds of freight. 254 miles, about 47 minutes in the air, on 10 airlines: United Parcel Service (510), Southwest Airlines Co. (9), Sun Country Airlines d/b/a MN Airlines (5), Republic Airline (2) and 6 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 | 40 |
| 2/25 | 41 |
| 3/25 | 43 |
| 4/25 | 42 |
| 5/25 | 44 |
| 6/25 | 42 |
| 7/25 | 46 |
| 8/25 | 44 |
| 9/25 | 42 |
| 10/25 | 50 |
| 11/25 | 32 |
| 12/25 | 43 |
| 1/26 | 47 |
| 2/26 | 42 |
| 3/26 | 44 |
| 4/26 | 49 |
| 5/26 | 45 |
| 6/26 | 47 |
| 7/26 | 48 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 0 |
| 2/25 | 0 |
| 3/25 | 67 |
| 4/25 | 0 |
| 5/25 | 0 |
| 6/25 | 174 |
| 7/25 | 0 |
| 8/25 | 0 |
| 9/25 | 66 |
| 10/25 | 0 |
| 11/25 | 0 |
| 12/25 | 0 |
| 1/26 | 0 |
| 2/26 | 124 |
| 3/26 | 1 |
| 4/26 | 190 |
| 5/26 | 159 |
| 6/26 | 296 |
| 7/26 | 278 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| United Parcel Service 5X | 510 | 0 | scheduled cargo service | |
| Southwest Airlines Co. WN | 9 | 809 | 57% | scheduled passenger service |
| Sun Country Airlines d/b/a MN Airlines SY | 5 | 0 | 0% | charter passenger service |
| Republic Airline YX | 2 | 51 | 35% | charter passenger service |
| Delta Air Lines Inc. DL | 2 | 144 | 65% | scheduled passenger service |
| GoJet Airlines LLC d/b/a United Express G7 | 1 | 3 | 6% | scheduled passenger service |
| Kalitta Charters II KLQ | 1 | 0 | charter cargo service | |
| USA Jet Airlines Inc. U7 | 1 | 0 | charter cargo service | |
| PSA Airlines Inc. OH | 1 | 49 | 64% | scheduled passenger service |
| Mesa Airlines Inc. YV | 1 | 58 | 83% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Airbus Industrie A300-600/R/CF/RCF | 327 | 0 | 0 |
| Boeing 757-200 | 149 | 0 | 0 |
| Boeing 767-300/300ER | 34 | 0 | 0 |
| Boeing 737-800 | 6 | 184 | 50 |
| Boeing B737 Max 800 | 4 | 175 | 293 |
| Boeing 737-700/700LR/Max 7 | 4 | 137 | 466 |
| Boeing 717-200 | 2 | 110 | 144 |
| Embraer ERJ-175 | 2 | 73 | 109 |
| Bombardier CRJ550 | 1 | 50 | 3 |
| Boeing 737-400 | 1 | 0 | 0 |
| McDonnell Douglas DC9 Super 80/MD81/82/83/88 | 1 | 0 | 0 |
| Embraer-Emb-170 | 1 | 70 | 0 |
| Canadair CRJ 900 | 1 | 76 | 49 |
STL → SDF this direction alone · flown January 2025 to July 2026
269 flights of 259 scheduled, 194 passengers in 1,165 seats, 10,959,176 pounds of freight, 21,255 pounds of mail. United Parcel Service 259; Sun Country Airlines d/b/a MN Airlines 3; Southwest Airlines Co. 3; GoJet Airlines LLC d/b/a United Express 1; Kalitta Charters II 1; USA Jet Airlines Inc. 1; Republic Airline 1.
SDF → STL this direction alone · flown January 2025 to July 2026
264 flights of 254 scheduled, 920 passengers in 1,750 seats, 13,939,052 pounds of freight. United Parcel Service 251; Southwest Airlines Co. 6; Delta Air Lines Inc. 2; Sun Country Airlines d/b/a MN Airlines 2; PSA Airlines Inc. 1; Mesa Airlines Inc. 1; Republic Airline 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: St. Louis Lambert International STL and Louisville Muhammad Ali International SDF; all routes.