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Cheap flights from Seattle to Louisville from $156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Louisville departing on 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:10 am - 9:39 pm
SEA
-
SDF
9h 29m
1 stop
Delta Logo
1:15 pm - 7:01 pm
SDF
-
SEA
8h 46m
1 stop
$322Delta
Mon, Sep 21 - Tue, Sep 29
Delta Logo
2:30 pm - 11:56 pm
SEA
-
SDF
6h 26m
1 stop
Delta Logo
5:45 pm - 12:03 am
SDF
-
SEA
9h 18m
1 stop
$332Delta
Thu, Sep 3 - Tue, Sep 8
American Airlines Logo
11:56 pm - 10:30 am
SEA
-
SDF
7h 34m
1 stop
American Airlines Logo
6:30 pm - 11:59 pm
SDF
-
SEA
8h 29m
1 stop
$333American Airlines
Thu, Aug 27 - Mon, Aug 31
Delta Logo
11:53 pm - 10:17 am
SEA
-
SDF
7h 24m
1 stop
Delta Logo
5:45 pm - 12:09 am
SDF
-
SEA
9h 24m
1 stop
$343Delta
Fri, Oct 9 - Thu, Oct 15
Southwest Logo
10:50 am - 8:25 pm
SEA
-
SDF
6h 35m
1 stop
Southwest Logo
4:00 pm - 11:05 pm
SDF
-
SEA
10h 05m
2 stops
$369Southwest
Thu, Sep 3 - Tue, Sep 8
Southwest Logo
6:40 am - 8:35 pm
SEA
-
SDF
10h 55m
2 stops
Southwest Logo
11:05 am - 5:05 pm
SDF
-
SEA
9h 00m
1 stop
$377Southwest
Wed, Sep 9 - Fri, Sep 11
Southwest Logo
6:40 am - 8:35 pm
SEA
-
SDF
10h 55m
2 stops
Southwest Logo
3:05 pm - 12:20 am
SDF
-
SEA
12h 15m
2 stops
$382Southwest
Wed, Sep 9 - Fri, Sep 11
Southwest Logo
8:45 am - 7:35 pm
SEA
-
SDF
7h 50m
1 stop
Southwest Logo
7:55 pm - 1:15 am
SDF
-
SEA
8h 20m
1 stop
$384Southwest
Sat, Jul 4 - Sat, Jul 11
Southwest Logo
11:05 pm - 12:40 pm
SEA
-
SDF
10h 35m
2 stops
Southwest Logo
4:50 pm - 10:55 pm
SDF
-
SEA
9h 05m
1 stop
$388Southwest
Fri, Sep 18 - Sat, Sep 19
Southwest Logo
8:45 am - 7:35 pm
SEA
-
SDF
7h 50m
1 stop
Southwest Logo
12:30 pm - 8:10 pm
SDF
-
SEA
10h 40m
2 stops
$389Southwest
Sat, Jul 4 - Sat, Jul 11

Delta flights from Seattle to Louisville

Our best Delta deals on Seattle to Louisville flight tickets
Delta
Sep 21
SEA9:10 amSeattle/Tacoma Intl
9h 29m
1 stop
SDF9:39 pmLouisville Intl
Sep 29
SDF1:15 pmLouisville Intl
8h 46m
1 stop
SEA7:01 pmSeattle/Tacoma Intl
$322
Delta
Sep 3
SEA2:30 pmSeattle/Tacoma Intl
6h 26m
1 stop
SDF11:56 pmLouisville Intl
Sep 8
SDF5:45 pmLouisville Intl
9h 18m
1 stop
SEA12:03 amSeattle/Tacoma Intl
$332
Delta
Oct 9
SEA11:53 pmSeattle/Tacoma Intl
7h 24m
1 stop
SDF10:17 amLouisville Intl
Oct 15
SDF5:45 pmLouisville Intl
9h 24m
1 stop
SEA12:09 amSeattle/Tacoma Intl
$343

American Airlines flights from Seattle to Louisville

Our best American Airlines deals on Seattle to Louisville flight tickets
American Airlines
Aug 27
SEA11:56 pmSeattle/Tacoma Intl
7h 34m
1 stop
SDF10:30 amLouisville Intl
Aug 31
SDF6:30 pmLouisville Intl
8h 29m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$333
American Airlines
Aug 10
SEA11:56 pmSeattle/Tacoma Intl
7h 34m
1 stop
SDF10:30 amLouisville Intl
Aug 14
SDF6:30 pmLouisville Intl
8h 29m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$396
American Airlines
Sep 23
SEA12:25 pmSeattle/Tacoma Intl
7h 57m
1 stop
SDF11:22 pmLouisville Intl
Sep 27
SDF4:52 pmLouisville Intl
9h 07m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$425

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Seattle to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Mon 9/21

9:10 am-9:39 pm

1 stop9h 29m

Louisville Intl

Tue 9/29

1:15 pm-7:01 pm

1 stop8h 46m

$322
Quickest round-trip

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 9/3

2:30 pm-11:56 pm

1 stop6h 26m

Louisville Intl

Tue 9/8

5:45 pm-12:03 am

1 stop9h 18m

$332

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 8/27

11:56 pm-10:30 am

1 stop7h 34m

Louisville Intl

Mon 8/31

6:30 pm-11:59 pm

1 stop8h 29m

$333

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 10/9

11:53 pm-10:17 am

1 stop7h 24m

Louisville Intl

Thu 10/15

5:45 pm-12:09 am

1 stop9h 24m

$343

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 9/3

10:50 am-8:25 pm

1 stop6h 35m

Louisville Intl

Tue 9/8

4:00 pm-11:05 pm

2 stops10h 05m

$369

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 9/9

6:40 am-8:35 pm

2 stops10h 55m

Louisville Intl

Fri 9/11

11:05 am-5:05 pm

1 stop9h 00m

$377

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 9/9

6:40 am-8:35 pm

2 stops10h 55m

Louisville Intl

Fri 9/11

3:05 pm-12:20 am

2 stops12h 15m

$382

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Sat 7/4

8:45 am-7:35 pm

1 stop7h 50m

Louisville Intl

Sat 7/11

7:55 pm-1:15 am

1 stop8h 20m

$384

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 9/18

11:05 pm-12:40 pm

2 stops10h 35m

Louisville Intl

Sat 9/19

4:50 pm-10:55 pm

1 stop9h 05m

$388

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Sat 7/4

8:45 am-7:35 pm

1 stop7h 50m

Louisville Intl

Sat 7/11

12:30 pm-8:10 pm

2 stops10h 40m

$389

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Louisville from

How to get the cheapest flight ticket from Seattle to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Louisville?

What is the cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of January, then departing from Seattle during the month August is also very affordable. Most momondo users find prices during this month for around $416.

How far in advance should I book a flight from Seattle to Louisville?

You are more likely to see cheaper flights to Louisville from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisville for around $478 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisville from Seattle for as low as $328 on momondo.

How have Seattle to Louisville flight prices changed over time?

As of June 2026, prices for Seattle to Louisville flights are approximately 90% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Louisville (SEA to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Louisville

Fastest flight time

6h 40m

Direct flights

None
The fastest flight from Seattle to Louisville takes 6h 40m
There are no direct flights from Seattle to Louisville. There are no popular flight routes from Seattle to Louisville.
Search flight deals

Frequently asked questions about flying from Seattle to Louisville

  • How far is Seattle/Tacoma Intl to Louisville Intl by plane?

    There are 1938.2 mi between Seattle/Tacoma Intl and Louisville Intl. By plane, this route typically takes 6h 40m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Louisville Intl Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Louisville Intl Airport are updated daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Louisville Intl Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Louisville Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Louisville?

Best airlines flying from Seattle to Louisville

Compare and see reviews for airlines that fly from Seattle to Louisville with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $242Free CancellationRating
7.9
8,396 reviews
Search Delta flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
9,781 reviews
Search United Airlines flights
American AirlinesPriceFrom $283Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
SouthwestPriceFrom $300Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $506Free CancellationRating
7.9
12,481 reviews
Search Alaska Airlines flights

  • Southwest Flights From Seattle to Louisville

    Across 1 Southwest flight from Seattle to Louisville this week, the average price was $457, with the best Southwest deals starting from $300 round-trip. 4,250 users have rated Southwest on momondo, with an average score of 7.9/10.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
West Baden Springs
Bardstown
New Albany
Shepherdsville
Elizabeth
Charlestown
Brandenburg
Corydon
Georgetown
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Louisville?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Louisville for you.

Can I find flights from Seattle to Louisville with flexible booking policies on momondo?

Flights from Seattle to Louisville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Louisville?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Louisville.

I’m not ready to book a flight from Seattle to Louisville right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Louisville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Louisville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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