Looking for more low-fare flights?
Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.
Find low faresSouthwest® flights from Seattle/Tacoma to Louisville from $194
expand_more
1 Passenger
expand_morePromo Code
expand_moretoday
today
Low fares from Seattle/Tacoma to Louisville
$
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 05/07/2026
One-way
Basic
From
$193
Seen: 8 hrs ago
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 02/24/2026
One-way
Basic
From
$194
Seen: 14 hrs ago
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 03/05/2026
One-way
Basic
From
$219
Seen: 23 hrs ago
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 03/26/2026
One-way
Basic
From
$219
Seen: 14 hrs ago
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 02/21/2026
One-way
Basic
From
$220
Seen: 14 hrs ago
Seattle/Tacoma (SEA)to
Louisville (SDF)
Depart: 05/07/2026
One-way
Choice
From
$233
Seen: 8 hrs ago
Explore flights from Seattle/Tacoma to Louisville
location_on
location_on
Flight Details
Departing from:
Seattle/Tacoma International Airport
Arriving at:
Louisville International Airport
Distance:
1945 miles
Route Information
64† Weekly flights
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
There are 64 weekly flights from Seattle/Tacoma to Louisville on Southwest Airlines.
To find the lowest fares by day and time to fly Seattle/Tacoma to Louisville with Southwest, check out our Low Fare Calendar.
You can rent a car at Louisville International Airport book yours with your flight.
Yes! Flights from Seattle/Tacoma to Louisville—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.