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Cheap flights from Seattle to Louisville from $134

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 2/19. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:55 pm - 11:57 amSEA-SDF
9h 02m1 stop
Delta Logo
6:16 pm - 11:59 pmSDF-SEA
8h 43m1 stop
$257Delta
Find Deal
Fri, Nov 14 - Mon, Nov 17
American Airlines Logo
12:59 am - 4:50 pmSEA-SDF
12h 51m1 stop
American Airlines Logo
12:43 pm - 11:39 pmSDF-SEA
13h 56m1 stop
$260American Airlines
Find Deal
Wed, Nov 19 - Mon, Nov 24
Multiple Airlines Logo
10:05 pm - 4:15 pmSEA-SDF
15h 10m1 stop
Multiple Airlines Logo
5:20 pm - 1:41 pmSDF-SEA
23h 21m1 stop
$284Multiple Airlines
Find Deal
Sun, Dec 14 - Mon, Jan 5
Multiple Airlines Logo
7:05 pm - 11:45 pmSEA-SDF
25h 40m2 stops
Multiple Airlines Logo
5:20 pm - 1:41 pmSDF-SEA
23h 21m1 stop
$297Multiple Airlines
Find Deal
Mon, Dec 15 - Mon, Jan 5
American Airlines Logo
12:59 am - 4:50 pmSEA-SDF
12h 51m1 stop
American Airlines Logo
1:02 pm - 11:25 pmSDF-SEA
13h 23m1 stop
$299American Airlines
Find Deal
Mon, Dec 1 - Wed, Dec 10
Delta Logo
11:55 pm - 11:56 amSEA-SDF
9h 01m1 stop
Delta Logo
7:00 am - 10:45 amSDF-SEA
6h 45m1 stop
$315Delta
Find Deal
Fri, Oct 31 - Tue, Nov 4
United Airlines Logo
11:30 pm - 9:59 amSEA-SDF
7h 29m1 stop
United Airlines Logo
3:20 pm - 11:44 pmSDF-SEA
11h 24m2 stops
$356United Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Southwest Logo
5:15 am - 5:30 pmSEA-SDF
9h 15m1 stop
Southwest Logo
6:30 am - 1:35 pmSDF-SEA
10h 05m1 stop
$363Southwest
Find Deal
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
5:05 am - 2:19 pmSEA-SDF
6h 14m1 stop
United Airlines Logo
7:00 am - 1:54 pmSDF-SEA
9h 54m2 stops
$364United Airlines
Find Deal
Sat, Nov 15 - Tue, Nov 18
Southwest Logo
5:15 am - 5:30 pmSEA-SDF
9h 15m1 stop
Southwest Logo
1:30 pm - 11:15 pmSDF-SEA
12h 45m2 stops
$393Southwest
Find Deal
Wed, Feb 18 - Mon, Feb 23

American Airlines flights from Seattle to Louisville

Our best American Airlines deals on Seattle to Louisville flight tickets
American Airlines
Nov 19
SEA12:59 amSeattle/Tacoma Intl
12h 51m
1 stop
SDF4:50 pmLouisville Intl
Nov 24
SDF12:43 pmLouisville Intl
13h 56m
1 stop
SEA11:39 pmSeattle/Tacoma Intl
$260
Find similar
American Airlines
Dec 1
SEA12:59 amSeattle/Tacoma Intl
12h 51m
1 stop
SDF4:50 pmLouisville Intl
Dec 10
SDF1:02 pmLouisville Intl
13h 23m
1 stop
SEA11:25 pmSeattle/Tacoma Intl
$299
Find similar
American Airlines
Nov 14
SEA12:59 amSeattle/Tacoma Intl
12h 51m
1 stop
SDF4:50 pmLouisville Intl
Nov 18
SDF12:43 pmLouisville Intl
13h 35m
1 stop
SEA11:18 pmSeattle/Tacoma Intl
$300
Find similar

Delta flights from Seattle to Louisville

Our best Delta deals on Seattle to Louisville flight tickets
Delta
Nov 14
SEA11:55 pmSeattle/Tacoma Intl
9h 02m
1 stop
SDF11:57 amLouisville Intl
Nov 17
SDF6:16 pmLouisville Intl
8h 43m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$257
Find similar
Delta
Oct 31
SEA11:55 pmSeattle/Tacoma Intl
9h 01m
1 stop
SDF11:56 amLouisville Intl
Nov 4
SDF7:00 amLouisville Intl
6h 45m
1 stop
SEA10:45 amSeattle/Tacoma Intl
$315
Find similar
Delta
Nov 6
SEA11:40 amSeattle/Tacoma Intl
9h 21m
1 stop
SDF12:01 amLouisville Intl
Nov 10
SDF6:03 pmLouisville Intl
7h 20m
1 stop
SEA10:23 pmSeattle/Tacoma Intl
$351
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 October 9, 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

Fri 11/14

11:55 pm-11:57 am

1 stop9h 02m

Louisville Intl

Mon 11/17

6:16 pm-11:59 pm

1 stop8h 43m

$257

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 11/19

12:59 am-4:50 pm

1 stop12h 51m

Louisville Intl

Mon 11/24

12:43 pm-11:39 pm

1 stop13h 56m

$260

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Sun 12/14

10:05 pm-4:15 pm

1 stop15h 10m

Louisville Intl

Mon 1/5

5:20 pm-1:41 pm

1 stop23h 21m

$284

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Mon 12/15

7:05 pm-11:45 pm

2 stops25h 40m

Louisville Intl

Mon 1/5

5:20 pm-1:41 pm

1 stop23h 21m

$297

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Mon 12/1

12:59 am-4:50 pm

1 stop12h 51m

Louisville Intl

Wed 12/10

1:02 pm-11:25 pm

1 stop13h 23m

$299

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Fri 10/31

11:55 pm-11:56 am

1 stop9h 01m

Louisville Intl

Tue 11/4

7:00 am-10:45 am

1 stop6h 45m

$315

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Thu 11/6

11:30 pm-9:59 am

1 stop7h 29m

Louisville Intl

Mon 11/10

3:20 pm-11:44 pm

2 stops11h 24m

$356

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 2/18

5:15 am-5:30 pm

1 stop9h 15m

Louisville Intl

Sun 2/22

6:30 am-1:35 pm

1 stop10h 05m

$363

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Sat 11/15

5:05 am-2:19 pm

1 stop6h 14m

Louisville Intl

Tue 11/18

7:00 am-1:54 pm

2 stops9h 54m

$364

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 2/18

5:15 am-5:30 pm

1 stop9h 15m

Louisville Intl

Mon 2/23

1:30 pm-11:15 pm

2 stops12h 45m

$393

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 cheapest month to fly to Louisville?

If you are unable to visit Louisville during the month of August, then departing from Seattle during the month October is also very affordable. Most momondo users find prices during this month for around $434.

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 $495 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 $444 on momondo.

How have Seattle to Louisville flight prices changed over time?

As of October 2025, prices for Seattle to Louisville flights are approximately 131% 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 14m.

  • 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 $268Free CancellationRating
7.9
7,969 reviews
Search Delta flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,237 reviews
Search Southwest flights
American AirlinesPriceFrom $303Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
8,968 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $456Free CancellationRating
8.0
11,050 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
West Baden Springs
Bardstown
Jeffersonville
Shepherdsville
New Albany
Corydon
Elizabeth
Charlestown
Springfield
Georgetown
Brandenburg

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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