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Cheap flights from Louisville to Seattle from $150

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:11 pm - 12:35 amSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 4:06 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 06m1 stop Charlotte Douglas
$299American Airlines
Sat, Nov 7 - Sat, Nov 14
American Airlines Logo
1:21 pm - 7:44 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 23m1 stop Dallas/Fort Worth
American Airlines Logo
6:00 am - 5:19 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 19m1 stop Charlotte Douglas
$299American Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
2:12 pm - 8:37 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 25m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:43 pm - 10:32 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 49m1 stop Denver Intl
$299United Airlines
Wed, Oct 21 - Sat, Oct 24
Delta Logo
7:05 am - 12:22 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 17m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:10 pm - 9:59 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 49m1 stop Detroit Metropolitan Wayne County
$299Delta
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
8:00 am - 4:12 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
11h 12m2 stops Denver Intl Los Angeles
United Airlines Logo
7:00 am - 5:00 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 00m1 stop Chicago O'Hare Intl
$304United Airlines
Sat, Nov 7 - Sat, Nov 14
Southwest Logo
6:25 am - 1:35 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 10m2 stops Las Vegas Harry Reid Intl Sacramento Intl
Southwest Logo
12:10 am - 10:05 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 55m1 stop Chicago Midway
$305Southwest
Wed, Oct 21 - Tue, Oct 27
Southwest Logo
3:00 pm - 10:40 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 40m2 stops Dallas Love Field Denver Intl
Southwest Logo
12:10 am - 10:20 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 10m1 stop Chicago Midway
$305Southwest
Wed, Oct 21 - Fri, Oct 23
Delta Logo
6:00 am - 1:43 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:54 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 54m1 stop Atlanta Hartsfield-Jackson
$320Delta
Sat, Oct 31 - Mon, Nov 9
Alaska Airlines Logo
10:54 am - 8:26 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
12h 32m2 stops Dallas/Fort Worth San Diego
Alaska Airlines Logo
11:42 pm - 9:38 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 56m1 stop Chicago O'Hare Intl
$624Alaska Airlines
Sat, Oct 31 - Mon, Nov 9
Alaska Airlines Logo
6:21 am - 2:31 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
11h 10m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
12:19 pm - 11:34 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 15m1 stop Dallas/Fort Worth
$624Alaska Airlines
Mon, Nov 2 - Mon, Nov 9

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American Airlines flights from Louisville to Seattle

Our best American Airlines deals on Louisville to Seattle flight tickets
American Airlines
Nov 3
SDF4:10 pmLouisville Intl
9h 01m
1 stop
SEA10:11 pmSeattle/Tacoma Intl
Nov 9
SEA11:34 pmSeattle/Tacoma Intl
7h 04m
1 stop
SDF9:38 amLouisville Intl
$320
American Airlines
Oct 7
SDF3:36 pmLouisville Intl
10h 34m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Oct 12
SEA11:59 pmSeattle/Tacoma Intl
9h 11m
1 stop
SDF12:10 pmLouisville Intl
$325
American Airlines
Oct 5
SDF3:36 pmLouisville Intl
10h 34m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
Oct 7
SEA5:00 amSeattle/Tacoma Intl
7h 27m
1 stop
SDF3:27 pmLouisville Intl
$358

Delta flights from Louisville to Seattle

Our best Delta deals on Louisville to Seattle flight tickets
Delta
Oct 21
SDF7:05 amLouisville Intl
8h 17m
1 stop
SEA12:22 pmSeattle/Tacoma Intl
Oct 24
SEA11:10 pmSeattle/Tacoma Intl
7h 49m
1 stop
SDF9:59 amLouisville Intl
$299
Delta
Nov 2
SDF3:26 pmLouisville Intl
10h 51m
1 stop
SEA11:17 pmSeattle/Tacoma Intl
Nov 9
SEA10:45 pmSeattle/Tacoma Intl
7h 21m
1 stop
SDF9:06 amLouisville Intl
$341
Delta
Nov 23
SDF5:40 pmLouisville Intl
7h 18m
1 stop
SEA9:58 pmSeattle/Tacoma Intl
Nov 27
SEA6:00 amSeattle/Tacoma Intl
7h 52m
1 stop
SDF4:52 pmLouisville Intl
$362

momondo Fare Finder

 
Use the filters below to find and compare flights from Louisville to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 11/7

6:11 pm-12:35 am

1 stop9h 24m

Seattle/Tacoma Intl

Sat 11/14

6:00 am-4:06 pm

1 stop7h 06m

$299

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 10/21

1:21 pm-7:44 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sat 10/24

6:00 am-5:19 pm

1 stop8h 19m

$299

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 10/21

2:12 pm-8:37 pm

1 stop9h 25m

Seattle/Tacoma Intl

Sat 10/24

12:43 pm-10:32 pm

1 stop6h 49m

$299
Quickest round-trip

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 10/21

7:05 am-12:22 pm

1 stop8h 17m

Seattle/Tacoma Intl

Sat 10/24

11:10 pm-9:59 am

1 stop7h 49m

$299

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 11/7

8:00 am-4:12 pm

2 stops11h 12m

Seattle/Tacoma Intl

Sat 11/14

7:00 am-5:00 pm

1 stop7h 00m

$304

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 10/21

6:25 am-1:35 pm

2 stops10h 10m

Seattle/Tacoma Intl

Tue 10/27

12:10 am-10:05 am

1 stop6h 55m

$305

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 10/21

3:00 pm-10:40 pm

2 stops10h 40m

Seattle/Tacoma Intl

Fri 10/23

12:10 am-10:20 am

1 stop7h 10m

$305

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 10/31

6:00 am-1:43 pm

1 stop10h 43m

Seattle/Tacoma Intl

Mon 11/9

6:00 am-4:54 pm

1 stop7h 54m

$320

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 10/31

10:54 am-8:26 pm

2 stops12h 32m

Seattle/Tacoma Intl

Mon 11/9

11:42 pm-9:38 am

1 stop6h 56m

$624

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Mon 11/2

6:21 am-2:31 pm

2 stops11h 10m

Seattle/Tacoma Intl

Mon 11/9

12:19 pm-11:34 pm

1 stop8h 15m

$624

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 Seattle from

How to get the cheapest flight ticket from Louisville to Seattle

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 Louisville and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $370 to $612.
The lowest price recently found on this route was $299.

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Louisville to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $299. If you don’t want to visit Seattle in January, then you should wait until February to fly from Louisville, when ticket prices are also cheap, with an average price of $370.

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

You are more likely to see cheaper flights to Seattle from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $451 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Louisville for as low as $396 on momondo.

How have Louisville to Seattle flight prices changed over time?

As of September 2026, prices for Louisville to Seattle flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Louisville to Seattle

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

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

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

Best Price Found

$150

Fastest flight time

6h 59m

Direct flights

None
The best one-way flight to Seattle from Louisville in the past 72 hours is $150. The best round-trip flight deal from Louisville to Seattle found on momondo in the last 72 hours is $299.
The fastest flight from Louisville to Seattle takes 6h 59m
There are no direct flights from Louisville to Seattle. There are no popular flight routes from Louisville to Seattle.
Search flight deals

Frequently asked questions about flying from Louisville to Seattle

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

    The distance between Louisville Intl and Seattle/Tacoma Intl is about 1938.2 mi. Flights usually cover this in 6h 59m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Louisville Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Louisville to Seattle

Compare and see reviews for airlines that fly from Louisville to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $292Free CancellationRating
7.8
8,591 reviews
Search Delta flights
American AirlinesPriceFrom $303Free CancellationRating
7.0
12,086 reviews
Search American Airlines flights
United AirlinesPriceFrom $308Free CancellationRating
7.4
10,231 reviews
Search United Airlines flights
SouthwestPriceFrom $372Free CancellationRating
8.0
4,196 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $430Free CancellationRating
7.9
12,950 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Kent
Olympia
Redmond
Lakewood
Federal Way
Fife
Puyallup
Tukwila
Lynnwood
Cle Elum
Marysville
Lacey
Kirkland
Centralia
Shoreline

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Louisville to Seattle on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Louisville.

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

If you are not ready to book a flight from Louisville to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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