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Cheap flights from Seattle to Louisville from $159

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 10/15. 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
0 bags

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Find the cheapest flights from Seattle to Louisville (SEA-SDF)

Cheap round-trip flights

Southwest Logo
1:10 pm - 10:40 pmSEA-SDF
6h 30m1 stop
Southwest Logo
11:55 am - 4:25 pmSDF-SEA
7h 30m1 stop
$317Southwest
Find Deal
Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
5:22 am - 5:53 pmSEA-SDF
9h 31m1 stop
American Airlines Logo
5:53 pm - 12:27 amSDF-SEA
9h 34m1 stop
$327American Airlines
Find Deal
Wed, Oct 8 - Mon, Oct 13
American Airlines Logo
1:50 pm - 11:40 pmSEA-SDF
6h 50m1 stop
American Airlines Logo
4:41 pm - 9:23 pmSDF-SEA
7h 42m1 stop
$332American Airlines
Find Deal
Fri, Sep 5 - Wed, Sep 17
American Airlines Logo
12:34 am - 1:43 pmSEA-SDF
10h 09m1 stop
American Airlines Logo
5:02 pm - 10:56 pmSDF-SEA
8h 54m1 stop
$335American Airlines
Find Deal
Tue, Oct 7 - Mon, Oct 13
Logo
4:55 pm - 11:21 amSEA-SDF
15h 26m1 stop
Logo
4:20 pm - 12:08 amSDF-SEA
10h 48m1 stop
$336
Find Deal
Wed, Sep 10 - Mon, Sep 15
Delta Logo
11:55 pm - 11:56 amSEA-SDF
9h 01m1 stop
Delta Logo
6:05 pm - 10:03 pmSDF-SEA
6h 58m1 stop
$338Delta
Find Deal
Fri, Oct 17 - Tue, Oct 21
Delta Logo
11:20 pm - 9:27 amSEA-SDF
7h 07m1 stop
Delta Logo
5:58 pm - 11:54 pmSDF-SEA
8h 56m1 stop
$348Delta
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
12:43 pm - 10:30 pmSEA-SDF
6h 47m1 stop
United Airlines Logo
3:30 pm - 11:15 pmSDF-SEA
10h 45m2 stops
$356United Airlines
Find Deal
Thu, Sep 25 - Sat, Sep 27
United Airlines Logo
11:40 pm - 10:01 amSEA-SDF
7h 21m1 stop
United Airlines Logo
8:45 am - 3:32 pmSDF-SEA
9h 47m2 stops
$358United Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Logo
4:36 pm - 3:20 pmSEA-SDF
19h 44m1 stop
Logo
4:20 pm - 3:41 pmSDF-SEA
26h 21m1 stop
$364
Find Deal
Thu, Sep 11 - Sun, Sep 14

Southwest flights from Seattle to Louisville

Our best Southwest deals on Seattle to Louisville flight tickets
Southwest
Oct 1
SEA1:10 pmSeattle/Tacoma Intl
6h 30m
1 stop
SDF10:40 pmLouisville Intl
Oct 7
SDF11:55 amLouisville Intl
7h 30m
1 stop
SEA4:25 pmSeattle/Tacoma Intl
$317
Find similar
Southwest
Sep 25
SEA1:20 pmSeattle/Tacoma Intl
6h 30m
1 stop
SDF10:50 pmLouisville Intl
Sep 27
SDF6:05 pmLouisville Intl
8h 25m
1 stop
SEA11:30 pmSeattle/Tacoma Intl
$337
Find similar
Southwest
Sep 22
SEA11:10 amSeattle/Tacoma Intl
8h 40m
2 stops
SDF10:50 pmLouisville Intl
Sep 23
SDF7:15 amLouisville Intl
6h 55m
1 stop
SEA11:10 amSeattle/Tacoma Intl
$372
Find similar

Delta flights from Seattle to Louisville

Our best Delta deals on Seattle to Louisville flight tickets
Delta
Sep 3
SEA11:43 amSeattle/Tacoma Intl
7h 59m
1 stop
SDF10:42 pmLouisville Intl
Sep 16
SDF7:10 amLouisville Intl
9h 54m
1 stop
SEA2:04 pmSeattle/Tacoma Intl
$332
Find similar
Delta
Oct 17
SEA11:55 pmSeattle/Tacoma Intl
9h 01m
1 stop
SDF11:56 amLouisville Intl
Oct 21
SDF6:05 pmLouisville Intl
6h 58m
1 stop
SEA10:03 pmSeattle/Tacoma Intl
$338
Find similar
Delta
Oct 3
SEA11:20 pmSeattle/Tacoma Intl
7h 07m
1 stop
SDF9:27 amLouisville Intl
Oct 6
SDF5:58 pmLouisville Intl
8h 56m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
$348
Find similar

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 August 25, 2025.
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

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 10/1

1:10 pm-10:40 pm

1 stop6h 30m

Louisville Intl

Tue 10/7

11:55 am-4:25 pm

1 stop7h 30m

$317

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 10/8

5:22 am-5:53 pm

1 stop9h 31m

Louisville Intl

Mon 10/13

5:53 pm-12:27 am

1 stop9h 34m

$327

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 9/5

1:50 pm-11:40 pm

1 stop6h 50m

Louisville Intl

Wed 9/17

4:41 pm-9:23 pm

1 stop7h 42m

$332

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Tue 10/7

12:34 am-1:43 pm

1 stop10h 09m

Louisville Intl

Mon 10/13

5:02 pm-10:56 pm

1 stop8h 54m

$335

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 9/10

4:55 pm-11:21 am

1 stop15h 26m

Louisville Intl

Mon 9/15

4:20 pm-12:08 am

1 stop10h 48m

$336

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 10/17

11:55 pm-11:56 am

1 stop9h 01m

Louisville Intl

Tue 10/21

6:05 pm-10:03 pm

1 stop6h 58m

$338

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 10/3

11:20 pm-9:27 am

1 stop7h 07m

Louisville Intl

Mon 10/6

5:58 pm-11:54 pm

1 stop8h 56m

$348

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 9/25

12:43 pm-10:30 pm

1 stop6h 47m

Louisville Intl

Sat 9/27

3:30 pm-11:15 pm

2 stops10h 45m

$356

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 10/1

11:40 pm-10:01 am

1 stop7h 21m

Louisville Intl

Tue 10/7

8:45 am-3:32 pm

2 stops9h 47m

$358

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 9/11

4:36 pm-3:20 pm

1 stop19h 44m

Louisville Intl

Sun 9/14

4:20 pm-3:41 pm

1 stop26h 21m

$364

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 September is also very affordable. Most momondo users find prices during this month for around $432.

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Seattle is on a Saturday. momondo users have found tickets for Saturday departures for as low as $471. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Seattle to Louisville on a Sunday will generally be more expensive and average around $644. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Seattle to Louisville flights are usually those with departure times in the afternoon. Our users have found flights to Louisville in the afternoon for as low as $296. In the morning is when there is more demand to fly to Louisville, so prices are often more expensive at around $545 per ticket.

How far in advance should I book a flight 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 $498 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 $415 on momondo.

How have Seattle to Louisville flight prices changed over time?

As of August 2025, prices for Seattle to Louisville flights are approximately 19% 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

Direct flights

None
There are no direct flights from Seattle to Louisville. There are no popular flight routes from Seattle to Louisville.
Search flight deals

  • 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 30m.

  • 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 $269Free CancellationRating
7.9
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $296Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $469Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

Traveling to a place near Louisville?

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

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.

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