HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$124+ Cheap flights from Washington to Louisville (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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDF
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Louisville 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.

Cheap flight deals from Washington to Louisville

Cheapest flights from Washington to Louisville
Explore the most affordable flight options available from Washington to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This American Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/2911:59 pmSEA - SDF
1 stop7h 09mAmerican Airlines
Wed 12/315:00 amSDF - SEA
1 stop10h 37mAmerican Airlines
Deal found 12/22$903
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/295:23 amSEA - SDF
1 stop9h 05mAmerican Airlines
Tue 12/305:00 amSDF - SEA
1 stop10h 37mAmerican Airlines
Deal found 12/22$907
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/296:28 amSEA - SDF
2 stops14h 02mAlaska Airlines
Wed 12/316:35 amSDF - SEA
1 stop8h 24mAlaska Airlines
Deal found 12/22$912
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 12/247:00 amPDX - SDF
1 stop11h 34mAmerican Airlines
Fri 12/267:00 amSDF - PDX
1 stop17h 49mAmerican Airlines
Deal found 12/20$933
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/296:28 amSEA - SDF
2 stops14h 02mAlaska Airlines
Tue 12/306:19 pmSDF - SEA
1 stop8h 43mAlaska Airlines
Deal found 12/22$938
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Sun 12/2111:59 pmGEG - SDF
1 stop19h 18mAmerican Airlines
Sun 12/287:00 amSDF - GEG
1 stop14h 33mAmerican Airlines
Deal found 12/20$972
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Sat 12/275:02 amSEA - SDF
1 stop6h 20mUnited Airlines
Mon 12/296:00 amSDF - SEA
1 stop9h 47mUnited Airlines
Deal found 12/22$982
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Sun 12/2111:59 pmSEA - SDF
1 stop9h 07mUnited Airlines
Fri 1/25:40 amSDF - SEA
1 stop9h 23mUnited Airlines
Deal found 12/21$987
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/237:20 amSEA - SDF
1 stop11h 14mAmerican Airlines
Fri 12/267:00 amSDF - SEA
1 stop15h 14mAmerican Airlines
Deal found 12/22$989
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 12/2412:45 pmPSC - SDF
2 stops22h 59mUnited Airlines
Fri 12/263:18 pmSDF - PSC
1 stop8h 45mUnited Airlines
Deal found 12/20$991
This Southwest deal was found by Cheapflights users on 12/20. 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.
Sun 12/215:25 amGEG - SDF
2 stops10h 00mSouthwest
Sun 12/286:45 amSDF - GEG
1 stop7h 35mSouthwest
Deal found 12/20$992
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/295:05 pmSEA - SDF
2 stops13h 58mUnited Airlines
Wed 12/313:18 pmSDF - SEA
2 stops12h 41mUnited Airlines
Deal found 12/22$997

Find flight deals from Washington to Louisville

Keep the following information in mind while searching for Washington to Louisville flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$298
(American Airlines)

One-way from

$124
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$556
Provider with most accurate pricing for Seattle/Tacoma Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Louisville Intl flights.
Search Deals
From Washington to Louisville Intl
Search Deals
One-way flight from Washington to Louisville Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 December 23, 2025.
Use the filters below to find and compare flights from Washington to Louisville that are best for you.

Fly from

Washington

Fly to

Louisville

Route

Depart

Return

Price

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Wed 2/4

7:35 am-5:33 pm

1 stop6h 58m

Louisville Intl

Sat 2/7

8:07 am-10:20 pm

1 stop17h 13m

$308

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Sat 1/17

7:00 am-6:30 pm

1 stop8h 30m

Louisville Intl

Mon 1/19

1:32 pm-10:20 pm

1 stop11h 48m

$309

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Sun 1/18

7:00 am-5:37 pm

1 stop7h 37m

Louisville Intl

Thu 1/22

3:30 pm-10:53 pm

1 stop10h 23m

$330

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 1/15

6:00 am-4:16 pm

1 stop7h 16m

Louisville Intl

Sun 1/18

6:00 am-10:34 am

1 stop7h 34m

$330

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Thu 1/15

1:24 pm-10:24 pm

1 stop6h 00m

Louisville Intl

Sun 1/18

9:00 am-1:45 pm

1 stop7h 45m

$330

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Sat 2/21

7:00 am-5:19 pm

1 stop7h 19m

Louisville Intl

Wed 2/25

5:35 am-1:44 pm

2 stops11h 09m

$345

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Mon 1/12

9:45 pm-9:28 am

1 stop8h 43m

Louisville Intl

Mon 1/19

5:35 am-10:47 am

1 stop8h 12m

$359

PortlandLouisville

PDX - SDF

PDXSDF

Portland

Tue 3/10

7:05 am-9:15 pm

2 stops11h 10m

Louisville Intl

Wed 3/11

4:25 pm-9:12 pm

1 stop7h 47m

$359

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Mon 1/19

7:00 am-5:37 pm

1 stop7h 37m

Louisville Intl

Mon 1/26

9:50 am-6:26 pm

2 stops11h 36m

$364

SeattleLouisville

SEA - SDF

SEASDF

Seattle/Tacoma Intl

Mon 2/23

10:55 am-10:13 pm

1 stop8h 18m

Louisville Intl

Sat 2/28

3:15 pm-12:59 am

2 stops12h 44m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 57 results
1
2
3
...
6

Best time to book a flight from Washington to Louisville

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

What is the cheapest month to book a flight from State of Washington to Louisville?

Currently, February is the cheapest month in which you can book a flight from State of Washington to Louisville (average of $118). Flying from State of Washington to Louisville in July is currently the most expensive (average of $288). 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 WA to SDF?

Find hourly flight availability from Washington 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 December 23, 2025.

When flying from State of Washington to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 48% versus a flight in the morning.

Weekly flight availability from State of Washington to Louisville

Explore weekly flight availability from Washington to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2025.

The most flights from USWA to SDF are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Related info for your journey

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

  • What airport do you fly into for flights to Louisville from Washington?

    If you book a flight to Louisville from Washington, you will be flying to Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville.

  • How long is the flight from State of Washington to Louisville?

    Departing from State of Washington to Louisville will take you 6h 58m. State of Washington and Louisville are separated by a distance of 1939 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of Washington to Louisville one-way?

    One-way options have recently been found by users for as low as $126 on Delta. Other airlines that offer cheap prices include United Airlines from $149 and American Airlines from $153 one-way.

  • What are the most popular routes from State of Washington to Louisville?

    When deciding which route to take from State of Washington to Louisville consider Seattle/Tacoma Intl - Louisville Intl, Portland - Louisville Intl or Spokane - Louisville Intl as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Louisville?

    Currently, February is the cheapest month in which you can book a flight from State of Washington to Louisville (average of $118). Flying from State of Washington to Louisville in July is currently the most expensive (average of $288). 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 Louisville?

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

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 Washington to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Nashville flights
John F Kennedy Intl to Nashville flights
LaGuardia to Nashville flights
Bozeman to Nashville flights
Los Angeles to Nashville flights
O'Hare Intl to Nashville flights
Boston to Nashville flights
Denver to Nashville flights
Dulles Intl to Nashville flights
Dallas/Fort Worth to Nashville flights
Reagan-National to Nashville flights
Baltimore to Nashville flights
Seattle to Nashville flights
Philadelphia to Nashville flights
Sky Harbor Intl to Nashville flights
Minneapolis to Nashville flights
John F Kennedy Intl to Cincinnati flights
LaGuardia to Cincinnati flights
Newark to Cincinnati flights
Billings to Nashville flights
Hobby to Nashville flights
San Francisco to Nashville flights
Salt Lake City to Nashville flights
Newark to Louisville flights
Orlando to Nashville flights
San Diego to Nashville flights
Los Angeles to Cincinnati flights
Ontario to Nashville flights
Detroit to Nashville flights
Tampa to Nashville flights
Missoula to Nashville flights
Fort Lauderdale to Nashville flights
LaGuardia to Louisville flights
George Bush Intcntl to Nashville flights
Miami to Nashville flights
Richmond to Nashville flights
Cleveland to Nashville flights
Boston to Cincinnati flights
Denver to Cincinnati flights
Raleigh to Nashville flights
John F Kennedy Intl to Louisville flights
Midway to Nashville flights
Helena to Nashville flights
Denver to Knoxville flights
John F Kennedy Intl to Knoxville flights
LaGuardia to Knoxville flights
Dallas/Fort Worth to Knoxville flights
O'Hare Intl to Knoxville flights
Portland to Nashville flights
Hobby to Cincinnati flights

Top 5 airlines flying from Washington to Louisville

Discover the top 5 airlines that operate flights from Washington 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$244Average$461FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$474FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$300Average$531FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$301Average$444FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$469Average$649FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.