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STL to SDF: distance & flight time
St. Louis (St Louis Lambert International Airport) → Louisville (Louisville International Standiford Field)
254 mi
408 km · 221 nm
1h 8m
estimated nonstop flight time
+1h
time difference · heading east
See live STL→SDF fares Phone-only fares on this route — call free
Flight time details
254 miles nonstop takes roughly 1h 8m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- SDF — Louisville International Standiford Field · Louisville, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Frequently asked questions
How far is STL from SDF?
The flight distance from St. Louis (STL) to Louisville (SDF) is 254 miles (408 km, 221 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SDF?
A nonstop flight takes about 1h 8m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between St. Louis and Louisville?
Louisville is 1 hour ahead of St. Louis.
What is the cheapest way to fly from STL to SDF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SDF that never appear on search engines, with no booking fees.