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SEA to SDF: distance & flight time
Seattle (Seattle Tacoma International Airport) → Louisville (Louisville International Standiford Field)
1,940 mi
3,123 km · 1,686 nm
4h 16m
estimated nonstop flight time
+3h
time difference · heading east
See live SEA→SDF fares Phone-only fares on this route — call free
Flight time details
1,940 miles nonstop takes roughly 4h 16m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time gain when reading arrival times on your ticket.
The two airports
- SEA — Seattle Tacoma International Airport · Seattle, 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 SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 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 SEA from SDF?
The flight distance from Seattle (SEA) to Louisville (SDF) is 1,940 miles (3,123 km, 1,686 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEA to SDF?
A nonstop flight takes about 4h 16m 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 Seattle and Louisville?
Louisville is 3 hours ahead of Seattle.
What is the cheapest way to fly from SEA to SDF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEA–SDF that never appear on search engines, with no booking fees.