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Cheap flights from Louisville to Seattle from $156

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
6:25 pm - 12:59 amSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 34m1 stop Dallas/Fort Worth
American Airlines Logo
10:47 am - 9:15 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 28m1 stop Chicago O'Hare Intl
$311American Airlines
Thu, Dec 24 - Tue, Jan 5
American Airlines Logo
1:21 pm - 8:31 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 10m1 stop Chicago O'Hare Intl
American Airlines Logo
11:39 pm - 9:22 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 43m1 stop Chicago O'Hare Intl
$311American Airlines
Tue, Dec 8 - Thu, Dec 10
Delta Logo
6:42 am - 12:29 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 47m1 stop Minneapolis St Paul
Delta Logo
11:15 pm - 10:19 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 04m1 stop Detroit Metropolitan Wayne County
$311Delta
Wed, Nov 25 - Mon, Nov 30
Delta Logo
7:50 am - 2:50 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 00m1 stop Detroit Metropolitan Wayne County
Delta Logo
11:15 pm - 10:09 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 54m1 stop Detroit Metropolitan Wayne County
$311Delta
Thu, Nov 19 - Thu, Nov 26
Southwest Logo
7:55 pm - 12:45 amSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 50m1 stop Chicago Midway
Southwest Logo
6:30 am - 3:35 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 05m1 stop Chicago Midway
$330Southwest
Thu, Nov 12 - Thu, Nov 19
Southwest Logo
8:55 am - 1:00 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 05m1 stop Chicago Midway
Southwest Logo
11:20 am - 8:35 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 15m1 stop Chicago Midway
$356Southwest
Thu, Nov 26 - Fri, Dec 25
United Airlines Logo
7:00 am - 12:28 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 28m1 stop Chicago O'Hare Intl
United Airlines Logo
5:00 am - 4:35 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 35m2 stops Denver Intl Chicago O'Hare Intl
$376United Airlines
Thu, Dec 24 - Tue, Jan 5
United Airlines Logo
3:24 pm - 9:19 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 55m1 stop Denver Intl
United Airlines Logo
7:00 am - 6:32 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 32m1 stop Chicago O'Hare Intl
$397United Airlines
Wed, Nov 18 - Sun, Nov 22
Alaska Airlines Logo
8:00 am - 8:24 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
15h 24m2 stops Dallas/Fort Worth San Diego
Alaska Airlines Logo
11:39 pm - 11:04 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 25m1 stop Chicago O'Hare Intl
$607Alaska Airlines
Thu, Dec 24 - Thu, Dec 24
Alaska Airlines Logo
10:17 am - 6:20 amSDF  Louisville Intl-SEA Seattle/Tacoma Intl
23h 03m2 stops Chicago O'Hare Intl Portland
Alaska Airlines Logo
10:19 am - 8:34 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 15m1 stop Dallas/Fort Worth
$612Alaska Airlines
Sun, Feb 7 - Mon, Feb 8

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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 24
SDF6:25 pmLouisville Intl
9h 34m
1 stop
SEA12:59 amSeattle/Tacoma Intl
Jan 5
SEA10:47 amSeattle/Tacoma Intl
7h 28m
1 stop
SDF9:15 pmLouisville Intl
$311
American Airlines
Dec 23
SDF6:25 pmLouisville Intl
9h 34m
1 stop
SEA12:59 amSeattle/Tacoma Intl
Dec 28
SEA11:59 pmSeattle/Tacoma Intl
8h 05m
1 stop
SDF11:04 amLouisville Intl
$477
American Airlines
Dec 18
SDF6:25 pmLouisville Intl
9h 34m
1 stop
SEA12:59 amSeattle/Tacoma Intl
Dec 22
SEA11:59 pmSeattle/Tacoma Intl
8h 05m
1 stop
SDF11:04 amLouisville Intl
$511

Southwest flights from Louisville to Seattle

Our best Southwest deals on Louisville to Seattle flight tickets
Southwest
Nov 12
SDF7:55 pmLouisville Intl
7h 50m
1 stop
SEA12:45 amSeattle/Tacoma Intl
Nov 19
SEA6:30 amSeattle/Tacoma Intl
6h 05m
1 stop
SDF3:35 pmLouisville Intl
$330
Southwest
Nov 26
SDF8:55 amLouisville Intl
7h 05m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
Dec 25
SEA11:20 amSeattle/Tacoma Intl
6h 15m
1 stop
SDF8:35 pmLouisville Intl
$356
Southwest
Nov 26
SDF8:55 amLouisville Intl
7h 05m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
Dec 25
SEA9:25 amSeattle/Tacoma Intl
8h 10m
2 stops
SDF8:35 pmLouisville Intl
$361

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

Thu 12/24

6:25 pm-12:59 am

1 stop9h 34m

Seattle/Tacoma Intl

Tue 1/5

10:47 am-9:15 pm

1 stop7h 28m

$311

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Tue 12/8

1:21 pm-8:31 pm

1 stop10h 10m

Seattle/Tacoma Intl

Thu 12/10

11:39 pm-9:22 am

1 stop6h 43m

$311

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 11/25

6:42 am-12:29 pm

1 stop8h 47m

Seattle/Tacoma Intl

Mon 11/30

11:15 pm-10:19 am

1 stop8h 04m

$311

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Thu 11/19

7:50 am-2:50 pm

1 stop10h 00m

Seattle/Tacoma Intl

Thu 11/26

11:15 pm-10:09 am

1 stop7h 54m

$311

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Thu 11/12

7:55 pm-12:45 am

1 stop7h 50m

Seattle/Tacoma Intl

Thu 11/19

6:30 am-3:35 pm

1 stop6h 05m

$330
Quickest round-trip

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Thu 11/26

8:55 am-1:00 pm

1 stop7h 05m

Seattle/Tacoma Intl

Fri 12/25

11:20 am-8:35 pm

1 stop6h 15m

$356

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Thu 12/24

7:00 am-12:28 pm

1 stop8h 28m

Seattle/Tacoma Intl

Tue 1/5

5:00 am-4:35 pm

2 stops8h 35m

$376

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Wed 11/18

3:24 pm-9:19 pm

1 stop8h 55m

Seattle/Tacoma Intl

Sun 11/22

7:00 am-6:32 pm

1 stop8h 32m

$397

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Thu 12/24

8:00 am-8:24 pm

2 stops15h 24m

Seattle/Tacoma Intl

Thu 12/24

11:39 pm-11:04 am

1 stop8h 25m

$607

LouisvilleSeattle

SDF Louisville Intl - SEA Seattle/Tacoma Intl

SDFSEA

Louisville Intl

Sun 2/7

10:17 am-6:20 am

2 stops23h 03m

Seattle/Tacoma Intl

Mon 2/8

10:19 am-8:34 pm

1 stop7h 15m

$612

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 $339 to $546.
The lowest price recently found on this route was $311.

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 $457 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 October 2026, prices for Louisville to Seattle flights are approximately 37% more expensive 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

$156

Fastest flight time

7h 08m

Direct flights

None
The best one-way flight to Seattle from Louisville in the past 72 hours is $156. The best round-trip flight deal from Louisville to Seattle found on momondo in the last 72 hours is $311.
The fastest flight from Louisville to Seattle takes 7h 08m
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 08m, 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
8,650 reviews
Search Delta flights
United AirlinesPriceFrom $308Free CancellationRating
7.3
10,388 reviews
Search United Airlines flights
American AirlinesPriceFrom $336Free CancellationRating
7.0
12,181 reviews
Search American Airlines flights
SouthwestPriceFrom $372Free CancellationRating
7.9
4,213 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $430Free CancellationRating
7.9
13,096 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
Redmond
Olympia
Kent
Federal Way
Lakewood
Lynnwood
Puyallup
Tukwila
Fife
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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