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Cheap flights from Louisville to Seattle from $193

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
6:30 pm - 12:42 amSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 12m1 stop Chicago O'Hare Intl
American Airlines Logo
11:59 pm - 11:04 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 05m1 stop Chicago O'Hare Intl
$363American Airlines
Tue, Dec 1 - Thu, Dec 31
American Airlines Logo
1:02 pm - 6:57 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 55m1 stop Charlotte Douglas
American Airlines Logo
6:06 am - 5:36 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 30m1 stop Chicago O'Hare Intl
$363American Airlines
Fri, Jan 15 - Mon, Jan 18
United Airlines Logo
6:00 pm - 10:32 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 32m1 stop Chicago O'Hare Intl
United Airlines Logo
7:00 am - 6:47 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 47m1 stop Chicago O'Hare Intl
$363United Airlines
Tue, Dec 22 - Fri, Jan 1
Delta Logo
1:04 pm - 8:50 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 46m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 5:16 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 16m1 stop Detroit Metropolitan Wayne County
$363Delta
Mon, Dec 14 - Wed, Dec 16
Delta Logo
3:12 pm - 8:50 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 38m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:53 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 53m1 stop Atlanta Hartsfield-Jackson
$363Delta
Sat, Dec 5 - Sat, Dec 12
Southwest Logo
7:25 am - 1:00 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 35m1 stop Chicago Midway
Southwest Logo
11:30 am - 12:55 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
10h 25m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl
$368Southwest
Fri, Jan 15 - Mon, Jan 18
United Airlines Logo
7:10 am - 1:49 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 39m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
8:09 am - 7:35 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 26m1 stop Washington, D.C. Dulles Intl
$368United Airlines
Sat, Dec 5 - Sat, Dec 12
Southwest Logo
6:20 pm - 10:45 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 25m1 stop Chicago Midway
Southwest Logo
11:05 am - 12:55 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
10h 50m2 stops San Jose Las Vegas Harry Reid Intl
$405Southwest
Wed, Jan 6 - Thu, Feb 4
Alaska Airlines Logo
1:11 pm - 6:02 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 51m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
9:21 pm - 11:12 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
22h 51m2 stops Boise Air Term. Gowen Fld Dallas/Fort Worth
$604Alaska Airlines
Wed, Jan 27 - Wed, Jan 27
Alaska Airlines Logo
9:04 am - 4:43 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 39m1 stop Dallas/Fort Worth
Alaska Airlines Logo
7:54 pm - 11:12 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
24h 18m2 stops Boise Air Term. Gowen Fld Dallas/Fort Worth
$618Alaska Airlines
Tue, Jan 26 - Tue, Jan 26

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American Airlines flights from Louisville to Seattle

Our best American Airlines deals on Louisville to Seattle flight tickets
American Airlines
Dec 1
SDF6:30 pmLouisville Intl
9h 12m
1 stop
SEA12:42 amSeattle/Tacoma Intl
Dec 31
SEA11:59 pmSeattle/Tacoma Intl
8h 05m
1 stop
SDF11:04 amLouisville Intl
$363
American Airlines
Dec 14
SDF4:35 pmLouisville Intl
9h 13m
1 stop
SEA10:48 pmSeattle/Tacoma Intl
Dec 17
SEA6:29 amSeattle/Tacoma Intl
8h 11m
1 stop
SDF5:40 pmLouisville Intl
$381
American Airlines
Dec 19
SDF6:50 pmLouisville Intl
7h 52m
1 stop
SEA11:42 pmSeattle/Tacoma Intl
Jan 1
SEA6:29 amSeattle/Tacoma Intl
8h 11m
1 stop
SDF5:40 pmLouisville Intl
$387

Delta flights from Louisville to Seattle

Our best Delta deals on Louisville to Seattle flight tickets
Delta
Jan 23
SDF3:59 pmLouisville Intl
10h 26m
1 stop
SEA11:25 pmSeattle/Tacoma Intl
Jan 26
SEA12:00 pmSeattle/Tacoma Intl
8h 25m
1 stop
SDF11:25 pmLouisville Intl
$385
Delta
Jan 25
SDF7:30 amLouisville Intl
10h 10m
1 stop
SEA2:40 pmSeattle/Tacoma Intl
Jan 26
SEA11:12 pmSeattle/Tacoma Intl
8h 32m
1 stop
SDF10:44 amLouisville Intl
$400
Delta
Jan 22
SDF5:59 pmLouisville Intl
8h 26m
1 stop
SEA11:25 pmSeattle/Tacoma Intl
Jan 30
SEA12:00 pmSeattle/Tacoma Intl
8h 25m
1 stop
SDF11:25 pmLouisville Intl
$410

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Tue 12/1

6:30 pm-12:42 am

1 stop9h 12m

Seattle/Tacoma Intl

Thu 12/31

11:59 pm-11:04 am

1 stop8h 05m

$363

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Fri 1/15

1:02 pm-6:57 pm

1 stop8h 55m

Seattle/Tacoma Intl

Mon 1/18

6:06 am-5:36 pm

1 stop8h 30m

$363
Quickest round-trip

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Tue 12/22

6:00 pm-10:32 pm

1 stop7h 32m

Seattle/Tacoma Intl

Fri 1/1

7:00 am-6:47 pm

1 stop8h 47m

$363

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Mon 12/14

1:04 pm-8:50 pm

1 stop10h 46m

Seattle/Tacoma Intl

Wed 12/16

6:00 am-5:16 pm

1 stop8h 16m

$363

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 12/5

3:12 pm-8:50 pm

1 stop8h 38m

Seattle/Tacoma Intl

Sat 12/12

6:00 am-4:53 pm

1 stop7h 53m

$363

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Fri 1/15

7:25 am-1:00 pm

1 stop8h 35m

Seattle/Tacoma Intl

Mon 1/18

11:30 am-12:55 am

2 stops10h 25m

$368

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sat 12/5

7:10 am-1:49 pm

2 stops9h 39m

Seattle/Tacoma Intl

Sat 12/12

8:09 am-7:35 pm

1 stop8h 26m

$368

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 1/6

6:20 pm-10:45 pm

1 stop7h 25m

Seattle/Tacoma Intl

Thu 2/4

11:05 am-12:55 am

2 stops10h 50m

$405

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 1/27

1:11 pm-6:02 pm

1 stop7h 51m

Seattle/Tacoma Intl

Wed 1/27

9:21 pm-11:12 pm

2 stops22h 51m

$604

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Tue 1/26

9:04 am-4:43 pm

1 stop10h 39m

Seattle/Tacoma Intl

Tue 1/26

7:54 pm-11:12 pm

2 stops24h 18m

$618

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 typical for flights on this route.

Typical prices usually range from $343 to $515.
The lowest price recently found on this route was $363.

What is the cheapest month to fly to Seattle?

In general, February 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 $385. If you don’t want to visit Seattle in February, then you should wait until November to fly from Louisville, when ticket prices are also cheap, with an average price of $414.

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 $475 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 $370 on momondo.

How have Louisville to Seattle flight prices changed over time?

As of November 2026, prices for Louisville to Seattle flights are approximately 29% 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

$193

Fastest flight time

7h 10m

Direct flights

None
The best one-way flight to Seattle from Louisville in the past 72 hours is $193. The best round-trip flight deal from Louisville to Seattle found on momondo in the last 72 hours is $363.
The fastest flight from Louisville to Seattle takes 7h 10m
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 7h 10m, 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
8,699 reviews
Search Delta flights
United AirlinesPriceFrom $308Free CancellationRating
7.3
10,471 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.0
12,227 reviews
Search American Airlines flights
SouthwestPriceFrom $372Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $430Free CancellationRating
7.9
13,159 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
Federal Way
Redmond
Lakewood
Lynnwood
Fife
Puyallup
Tukwila
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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