How long is the flight from Louisville to Seattle?

There are many flights that can get you from Louisville to Seattle in 8h 12m. Fly via Delta, American Airlines, or Southwest to get the fastest option. Louisville and Seattle are separated by a distance of 1939 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Louisville to Seattle round-trip?

Delta, at $206, was found to be the cheapest airline from Louisville to Seattle.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is 53% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Louisville to Seattle one-way?

One-way options have recently been found by users for as low as $128 on American Airlines. Other airlines that offer cheap prices include Delta from $133 and Southwest from $171 one-way.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular airlines that fly from Louisville to Seattle?

The most popular airlines flying from Louisville to Seattle are American Airlines, Delta and United Airlines. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on Louisville-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Seattle flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Louisville-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Louisville to Seattle that include hotel bookings?

Yes. In addition to deals on Louisville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Louisville to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Seattle.

Can I find deals for business class flights from Louisville to Seattle?

Yes. Cheapflights offers flight deals from Louisville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$147+ Flights from Louisville to Seattle

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Louisville to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Louisville Intl to Seattle/Tacoma Intl are usually found in October or November, booked 69 days in advance, depart on a Tuesday or Friday and return on a Saturday

Cheap flight deals from Louisville to Seattle

Cheapest flights from Louisville to Seattle
Explore the most affordable flight options available from Louisville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Wed 12/246:40 amSDF - SEA

1 stop9h 18mDelta

Wed 12/3111:45 amSEA - SDF

1 stop8h 18mDelta

Deal found 12/11

$301

Wed 12/246:40 amSDF - SEA

1 stop7h 05mDelta

Tue 1/66:05 amSEA - SDF

1 stop7h 11mDelta

Deal found 12/11

$311

Wed 12/246:40 amSDF - SEA

1 stop7h 05mDelta

Mon 1/511:15 pmSEA - SDF

2 stops14h 01mDelta

Deal found 12/11

$370

Wed 12/246:40 amSDF - SEA

1 stop9h 18mDelta

Mon 12/296:00 amSEA - SDF

1 stop8h 26mDelta

Deal found 12/11

$429

Wed 12/245:00 amSDF - SEA

1 stop10h 37mAmerican Airlines

Mon 1/510:13 pmSEA - SDF

1 stop9h 11mAmerican Airlines

Deal found 12/11

$433

Wed 12/243:18 pmSDF - SEA

1 stop8h 59mUnited Airlines

Sun 1/411:59 pmSEA - SDF

1 stop7h 04mUnited Airlines

Deal found 12/11

$439

Thu 12/258:00 amSDF - SEA

1 stop8h 58mUnited Airlines

Tue 1/65:00 amSEA - SDF

2 stops12h 28mUnited Airlines

Deal found 12/11

$445

Wed 12/246:40 amSDF - SEA

1 stop9h 18mDelta

Thu 1/112:55 amSEA - SDF

1 stop19h 08mDelta

Deal found 12/11

$493

Wed 12/248:00 amSDF - SEA

1 stop8h 58mUnited Airlines

Mon 1/57:05 amSEA - SDF

2 stops10h 27mUnited Airlines

Deal found 12/11

$503

Wed 12/243:25 pmSDF - SEA

1 stop10h 27mUnited Airlines

Thu 1/18:57 amSEA - SDF

2 stops10h 33mUnited Airlines

Deal found 12/11

$505

Best flights from Louisville to Seattle
Discover carefully curated flight deals from Louisville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Sat 1/101:15 pmSDF - SEA

1 stop10h 30mAmerican Airlines

Tue 1/138:04 amSEA - SDF

1 stop12h 15mAmerican Airlines

Deal found 12/10

$310

Wed 2/115:35 amSDF - SEA

2 stops11h 22mUnited Airlines

Tue 2/178:17 amSEA - SDF

1 stop8h 25mUnited Airlines

Deal found 12/11

$326

Wed 12/246:40 amSDF - SEA

1 stop9h 18mDelta

Tue 1/611:15 pmSEA - SDF

2 stops14h 01mDelta

Deal found 12/11

$370

Wed 2/1112:50 pmSDF - SEA

2 stops12h 40mSouthwest

Tue 2/175:15 amSEA - SDF

2 stops8h 55mSouthwest

Deal found 12/11

$379

Sat 1/2412:56 pmSDF - SEA

1 stop8h 26mAlaska Airlines

Wed 1/288:30 amSEA - SDF

1 stop7h 09mAlaska Airlines

Deal found 12/9

$430

Fri 1/93:22 pmSDF - SEA

2 stops10h 54mUnited Airlines

Mon 1/1210:58 amSEA - SDF

1 stop6h 30mUnited Airlines

Deal found 12/10

$342

Wed 12/245:00 amSDF - SEA

1 stop10h 37mAmerican Airlines

Mon 1/510:13 pmSEA - SDF

1 stop9h 11mAmerican Airlines

Deal found 12/11

$433

Fri 6/57:25 pmSDF - SEA

1 stop7h 01mDelta

Sat 6/136:05 amSEA - SDF

1 stop6h 39mDelta

Deal found 12/11

$437

Sat 1/241:50 pmSDF - SEA

1 stop12h 25mUnited Airlines

Wed 1/2810:58 amSEA - SDF

1 stop6h 30mUnited Airlines

Deal found 12/10

$419

Mon 6/87:25 pmSDF - SEA

1 stop7h 01mDelta

Tue 6/99:58 pmSEA - SDF

1 stop8h 53mDelta

Deal found 12/10

$437

Last-minute flights from Louisville to Seattle
Discover last-minute flight deals from Louisville to Seattle. Data last updated December 12, 2025 and is based on user searches.

Wed 12/246:40 amSDF - SEA

1 stop9h 18mDelta

Wed 12/3111:45 amSEA - SDF

1 stop8h 18mDelta

Deal found 12/11

$301

Wed 12/246:40 amSDF - SEA

1 stop7h 05mDelta

Tue 1/66:05 amSEA - SDF

1 stop7h 11mDelta

Deal found 12/11

$311

Wed 12/246:40 amSDF - SEA

1 stop7h 05mDelta

Mon 1/511:15 pmSEA - SDF

2 stops14h 01mDelta

Deal found 12/11

$370

Fri 1/91:15 pmSDF - SEA

1 stop10h 30mAmerican Airlines

Mon 1/126:00 amSEA - SDF

1 stop8h 33mAmerican Airlines

Deal found 12/10

$337

Fri 1/93:22 pmSDF - SEA

2 stops10h 54mUnited Airlines

Mon 1/1210:58 amSEA - SDF

1 stop6h 30mUnited Airlines

Deal found 12/10

$342

Sat 1/101:15 pmSDF - SEA

1 stop10h 30mAmerican Airlines

Tue 1/138:04 amSEA - SDF

1 stop12h 15mAmerican Airlines

Deal found 12/10

$310

Sat 1/102:05 pmSDF - SEA

2 stops10h 10mUnited Airlines

Tue 1/1310:58 amSEA - SDF

1 stop6h 30mUnited Airlines

Deal found 12/10

$334

Thu 1/151:32 pmSDF - SEA

1 stop11h 48mAmerican Airlines

Mon 1/198:35 amSEA - SDF

1 stop9h 12mAmerican Airlines

Deal found 12/10

$348

Sat 1/241:50 pmSDF - SEA

1 stop12h 25mUnited Airlines

Wed 1/2810:58 amSEA - SDF

1 stop6h 30mUnited Airlines

Deal found 12/10

$419

Sun 1/253:32 pmSDF - SEA

1 stop10h 43mDelta

Wed 1/2812:00 pmSEA - SDF

1 stop8h 06mDelta

Deal found 12/11

$329

One-way flights from Louisville to Seattle
Search for one-way flight options from Louisville to Seattle. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Wed 3/411:55 amSDF - SEA

1 stop13h 20mAmerican Airlines

Deal found 12/10

$147

Wed 2/113:33 pmSDF - SEA

1 stop8h 12mAmerican Airlines

Deal found 12/11

$161

Wed 2/113:22 pmSDF - SEA

2 stops12h 30mUnited Airlines

Deal found 12/11

$166

Wed 3/49:00 amSDF - SEA

3 stops15h 01mUnited Airlines

Deal found 12/10

$274

Sun 1/45:49 pmSDF - SEA

1 stop8h 24mAmerican Airlines

Deal found 12/10

$304

Sun 1/45:05 amSDF - SEA

3 stops40h 48mMultiple Airlines

Deal found 12/10

$321

Sat 12/205:05 amSDF - SEA

3 stops56h 06mMultiple Airlines

Deal found 12/10

$351

Tue 12/305:05 amSDF - SEA

3 stops34h 25mMultiple Airlines

Deal found 12/11

$394

Sat 12/208:05 amSDF - SEA

1 stop8h 57mAmerican Airlines

Deal found 12/10

$454

Sun 1/46:11 pmSDF - SEA

2 stops18h 45mUnited Airlines

Deal found 12/10

$459

Find flight deals from Louisville to Seattle

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$302 (American Airlines)
One-way from	$147 (American Airlines)
Popular in	July
Cheapest in	October
Average price	$483

Provider with most accurate pricing for Louisville Intl-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Louisville Intl-Seattle/Tacoma Intl flights.

Search Deals

From Louisville Intl to Seattle/Tacoma Intl

Search Deals

One-way flight from Louisville Intl to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($74 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights 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

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 1/10

1:15 pm-8:45 pm

1 stop10h 30m

Seattle/Tacoma Intl

Tue 1/13

8:04 am-11:19 pm

1 stop12h 15m

$310

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 2/11

5:35 am-1:57 pm

2 stops11h 22m

Seattle/Tacoma Intl

Tue 2/17

8:17 am-7:42 pm

1 stop8h 25m

$326

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Fri 1/9

3:22 pm-11:16 pm

2 stops10h 54m

Seattle/Tacoma Intl

Mon 1/12

10:58 am-8:28 pm

1 stop6h 30m

$342

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 12/24

6:40 am-12:58 pm

1 stop9h 18m

Seattle/Tacoma Intl

Tue 1/6

11:15 pm-4:16 pm

2 stops14h 01m

$370

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 2/11

12:50 pm-10:30 pm

2 stops12h 40m

Seattle/Tacoma Intl

Tue 2/17

5:15 am-5:10 pm

2 stops8h 55m

$379

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 1/24

1:50 pm-11:15 pm

1 stop12h 25m

Seattle/Tacoma Intl

Wed 1/28

10:58 am-8:28 pm

1 stop6h 30m

$419

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 1/24

12:56 pm-6:22 pm

1 stop8h 26m

Seattle/Tacoma Intl

Wed 1/28

8:30 am-6:39 pm

1 stop7h 09m

$430

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 12/24

5:00 am-12:37 pm

1 stop10h 37m

Seattle/Tacoma Intl

Mon 1/5

10:13 pm-10:24 am

1 stop9h 11m

$433

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Fri 6/5

7:25 pm-11:26 pm

1 stop7h 01m

Seattle/Tacoma Intl

Sat 6/13

6:05 am-3:44 pm

1 stop6h 39m

$437

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Mon 6/8

7:25 pm-11:26 pm

1 stop7h 01m

Seattle/Tacoma Intl

Tue 6/9

9:58 pm-9:51 am

1 stop8h 53m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 19 results

Compare providers for flights from Louisville to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Seattle in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Louisville-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Seattle flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Louisville-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Louisville with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Seattle

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

The best time to book flights from Louisville to Seattle is 69 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Louisville to Seattle?

Currently, October is the cheapest month in which you can book a flight from Louisville to Seattle (average of $131). Flying from Louisville to Seattle in July is currently the most expensive (average of $247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SDF to SEA?

A simple way to save on the total cost of your ticket is to fly from Louisville to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Louisville to Seattle?

Travelers seeking maximum savings on their Louisville to Seattle flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Louisville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Alaska Airlines

8.0

Very good

11,432 reviews

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Southwest

7.9

Good

4,253 reviews

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Delta

7.9

Good

8,008 reviews

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

United Airlines

7.4

Good

9,095 reviews

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

American Airlines

7.2

Good

11,050 reviews

Alaska Airlines

8.0

Very good

11,432 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

How long is the flight from Louisville to Seattle?
There are many flights that can get you from Louisville to Seattle in 8h 12m. Fly via Delta, American Airlines, or Southwest to get the fastest option. Louisville and Seattle are separated by a distance of 1939 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Louisville to Seattle round-trip?
Delta, at $206, was found to be the cheapest airline from Louisville to Seattle.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is 53% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Louisville to Seattle one-way?
One-way options have recently been found by users for as low as $128 on American Airlines. Other airlines that offer cheap prices include Delta from $133 and Southwest from $171 one-way.
Can I find deals for flights from Louisville to Seattle that include hotel bookings?
Yes. In addition to deals on Louisville to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Louisville to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Seattle.
Can I find deals for business class flights from Louisville to Seattle?
Yes. Cheapflights offers flight deals from Louisville to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Louisville to Seattle?
Currently, October is the cheapest month in which you can book a flight from Louisville to Seattle (average of $131). Flying from Louisville to Seattle in July is currently the most expensive (average of $247). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Seattle

Top 5 airlines flying from Louisville to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$209	Average$411	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$270	Average$518	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$293	Average$433	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$350	Average$496	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$506	Average$616	FlexibilityNo cancel fee	On-time75%

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$147+ Cheap flights from Louisville to Seattle (SDF - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Louisville Intl to Seattle/Tacoma Intl are usually found in October or November, booked 69 days in advance, depart on a Tuesday or Friday and return on a Saturday

Cheap flight deals from Louisville to Seattle

Cheapest flights from Louisville to SeattleExplore the most affordable flight options available from Louisville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Explore the most affordable flight options available from Louisville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

Find flight deals from Louisville to Seattle

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from Louisville to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Seattle in December.

Best time to book a flight from Louisville to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Louisville with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Seattle

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

What is the cheapest month to book a flight from Louisville to Seattle?

What is the cheapest time of day to fly from SDF to SEA?

What is the cheapest day to fly from Louisville to Seattle?

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Louisville to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Louisville to Seattle?

What are the cheapest airlines flying from Louisville to Seattle round-trip?

What are the cheapest airlines to fly from Louisville to Seattle one-way?

Can I find deals for flights from Louisville to Seattle that include hotel bookings?

How can I find direct flights from Louisville to Seattle?

Can I find deals for business class flights from Louisville to Seattle?

What is the cheapest month to book a flight from Louisville to Seattle?

Traveling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Louisville to Seattle

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Cheapest flights from Louisville to Seattle
Explore the most affordable flight options available from Louisville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.