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$174+ Cheap flights from Seattle to Louisville (SEA - SDF)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDF
ene. 22 — ene. 291
mié. 1/22
mié. 1/29
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Louisville Intl are usually found in October or January, booked 78 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from Seattle to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(Mytrip)

One-way from

$174
(American Airlines)

Popular in

December

Cheapest in

October

Average price

$431
Provider with most accurate pricing for Seattle/Tacoma Intl-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Louisville Intl flights.
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From Seattle/Tacoma Intl to Louisville Intl
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One-way flight from Seattle/Tacoma Intl to Louisville Intl
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High demand for flights, 2% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Seattle to Louisville

Cheapest flights from Seattle to Louisville
Explore the most affordable flight options available from Seattle to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 17, 2025.

This American Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/412:43 amSEA - SDF
1 stop9h 30mAmerican Airlines
jue. 3/65:00 amSDF - SEA
1 stop9h 17mAmerican Airlines
Deal found 1/16$257
This Delta deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/56:00 amSEA - SDF
1 stop8h 35mDelta
mié. 2/127:35 amSDF - SEA
1 stop9h 49mDelta
Deal found 1/16$302
This Sun Country Air deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/216:33 pmSEA - SDF
1 stop13h 16mSun Country Air
lun. 5/2612:10 pmSDF - SEA
1 stop24h 05mSun Country Air
Deal found 1/15$375
This Southwest deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/57:30 amSEA - SDF
1 stop8h 55mSouthwest
jue. 3/61:40 pmSDF - SEA
2 stops13h 50mSouthwest
Deal found 1/16$387
This United Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/17:00 amSEA - SDF
1 stop7h 06mUnited Airlines
mié. 2/57:00 amSDF - SEA
1 stop8h 07mUnited Airlines
Deal found 1/16$437
This Mytrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/19:45 amSEA - SDF
3 stops29h 45mSpirit Airlines
sáb. 2/87:25 pmSDF - SEA
2 stops31h 54mSpirit Airlines
Deal found 1/16$443
This Mytrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/1712:41 pmSEA - SDF
2 stops26h 27mMultiple Airlines
dom. 3/239:38 pmSDF - SEA
3 stops24h 24mMultiple Airlines
Deal found 1/16$466
This Alaska Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/177:00 pmSEA - SDF
2 stops11h 29mAlaska Airlines
lun. 7/214:51 pmSDF - SEA
1 stop9h 16mAlaska Airlines
Deal found 1/16$578

Find flights from Seattle to Louisville within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated enero 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

lun. 2/24

7:47 pm-11:46 pm

3 stops24h 59m

Louisville Intl

jue. 2/27

7:28 pm-6:52 pm

2 stops26h 24m

$337

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

vie. 2/21

12:25 am-1:14 pm

1 stop9h 49m

Louisville Intl

mié. 2/26

6:26 pm-11:23 pm

1 stop7h 57m

$347

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

mié. 5/21

6:33 pm-10:49 am

1 stop13h 16m

Louisville Intl

lun. 5/26

12:10 pm-9:15 am

1 stop24h 05m

$375

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

sáb. 2/15

6:00 am-5:35 pm

1 stop8h 35m

Louisville Intl

mar. 3/4

4:39 pm-8:47 pm

1 stop7h 08m

$378

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

vie. 2/21

5:00 am-4:35 pm

1 stop8h 35m

Louisville Intl

sáb. 3/1

7:40 am-5:45 pm

2 stops13h 05m

$422

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

dom. 2/2

7:00 am-8:37 pm

2 stops10h 37m

Louisville Intl

mar. 2/11

3:20 pm-10:00 pm

1 stop9h 40m

$437

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

lun. 3/17

12:41 pm-6:08 pm

3 stops26h 27m

Louisville Intl

dom. 3/23

9:38 pm-7:02 pm

3 stops24h 24m

$496

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

jue. 5/22

8:00 pm-9:27 am

2 stops10h 27m

Louisville Intl

lun. 5/26

10:48 am-9:47 pm

1 stop13h 59m

$684

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

mar. 4/1

12:59 am-1:13 pm

1 stop9h 14m

$174

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

dom. 2/16

11:05 pm-11:31 am

1 stop9h 26m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 12 results
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Compare providers for flights from Seattle to Louisville

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 Seattle to Louisville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FareScanPrice Accuracy3 starsTrust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 Seattle-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Louisville 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 Seattle to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Seattle 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.

Travel insights for flights from Seattle to Louisville

Get recent, data-driven insights about flights from Seattle to Louisville including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Louisville. Price data was last updated on January 10, 2025.

The price you pay for your flight from Seattle to Louisville may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Louisville (average of $299). Flying from Seattle to Louisville in April is currently the most expensive (average of $369). 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 SEA to SDF?

Find hourly flight availability from Seattle to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated enero 17, 2025.

It’s optimal to fly from Seattle to Louisville in the afternoon. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Louisville. Price data was last updated on December 16, 2024.

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

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated enero 17, 2025.
To help decide which airline to fly from Seattle to Louisville, see what other customers have to say about Delta, Spirit Airlines and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

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

    Flying on Spirit Airlines is currently your cheapest option to Louisville, with prices starting at $337. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $347 and $378, respectively. These flights start at 36% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Seattle to Louisville are American Airlines ($174), Sun Country Air ($193), and Delta ($209).

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

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

  • How can I find direct flights from Seattle to Louisville?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Louisville 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 Seattle to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Louisville (average of $299). Flying from Seattle to Louisville in April is currently the most expensive (average of $369). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Jeffersonville
Corydon
Elizabethtown
Bardstown

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Top 6 airlines flying from Seattle to Louisville

Discover the top 6 airlines that operate flights from Seattle to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$220Average$311FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$273Average$501FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$548FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$352Average$676FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$376Average$614FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$485Average$742FlexibilityNo cancel feeOn-time75%
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