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$169+ Cheap flights from Louisville (SDF) to Washington

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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SEA
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Louisville to Washington

Cheapest flights from Louisville to Washington
Explore the most affordable flight options available from Louisville to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Southwest deal was found by Cheapflights users on 1/19. 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.
Wed 3/118:55 am
SDF
-
SEA
1 stop6h 50m
Southwest
Tue 3/1711:55 pm
SEA
-
SDF
1 stop7h 35m
Southwest
Deal found 1/19$321
This Southwest deal was found by Cheapflights users on 1/20. 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.
Tue 2/106:00 am
SDF
-
SEA
1 stop7h 45m
Southwest
Wed 2/116:45 am
SEA
-
SDF
1 stop12h 25m
Southwest
Deal found 1/20$327
This Delta deal was found by Cheapflights users on 1/17. 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.
Wed 2/116:23 am
SDF
-
SEA
1 stop7h 32m
Delta
Wed 2/186:10 am
SEA
-
SDF
1 stop6h 38m
Delta
Deal found 1/17$337
This Southwest deal was found by Cheapflights users on 1/20. 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.
Wed 3/117:00 am
SDF
-
SEA
1 stop10h 20m
Southwest
Mon 3/1611:55 pm
SEA
-
SDF
1 stop7h 35m
Southwest
Deal found 1/20$340
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 5/23:30 pm
SDF
-
PDX
1 stop10h 29m
United Airlines
Wed 5/611:55 pm
PDX
-
SDF
1 stop6h 46m
United Airlines
Deal found 1/20$340
This United Airlines deal was found by Cheapflights users on 1/19. 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 3/113:15 pm
SDF
-
SEA
2 stops11h 01m
United Airlines
Tue 3/175:00 am
SEA
-
SDF
1 stop6h 19m
United Airlines
Deal found 1/19$342
This Southwest deal was found by Cheapflights users on 1/20. 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.
Tue 2/245:10 pm
SDF
-
SEA
1 stop8h 55m
Southwest
Thu 2/265:15 am
SEA
-
SDF
1 stop11h 00m
Southwest
Deal found 1/20$346
This Delta deal was found by Cheapflights users on 1/17. 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.
Wed 2/117:50 am
SDF
-
SEA
1 stop9h 31m
Delta
Sat 2/216:00 am
SEA
-
SDF
1 stop7h 03m
Delta
Deal found 1/17$348
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/186:10 am
SDF
-
GEG
1 stop8h 34m
American Airlines
Wed 2/2512:25 pm
GEG
-
SDF
1 stop6h 01m
American Airlines
Deal found 1/20$359
This Delta deal was found by Cheapflights users on 1/17. 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.
Sat 2/147:50 am
SDF
-
SEA
1 stop9h 30m
Delta
Mon 2/1611:15 pm
SEA
-
SDF
1 stop7h 49m
Delta
Deal found 1/17$359
This Delta deal was found by Cheapflights users on 1/19. 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.
Tue 2/176:23 am
SDF
-
PDX
1 stop9h 21m
Delta
Mon 2/239:45 pm
PDX
-
SDF
1 stop8h 43m
Delta
Deal found 1/19$359
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:33 am
SDF
-
GEG
1 stop9h 02m
Delta
Wed 2/256:05 am
GEG
-
SDF
2 stops12h 13m
Delta
Deal found 1/20$364

Find flight deals from Louisville to Washington

Keep the following information in mind while searching for Louisville to Washington flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$321
(United Airlines)

One-way from

$169
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$359
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 Washington
Search Deals
One-way flight from Louisville Intl to Washington
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Washington 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 January 20, 2026.
Use the filters below to find and compare flights from Louisville to Washington that are best for you.

Fly from

Louisville

Fly to

Washington

Route

Depart

Return

Price

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 3/11

8:55 am-12:45 pm

1 stop6h 50m

Seattle/Tacoma Intl

Tue 3/17

11:55 pm-10:30 am

1 stop7h 35m

$321

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 4/15

7:20 am-11:48 am

1 stop7h 28m

Seattle/Tacoma Intl

Wed 4/22

12:54 pm-10:39 pm

1 stop6h 45m

$337

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 3/11

7:00 am-2:20 pm

1 stop10h 20m

Seattle/Tacoma Intl

Mon 3/16

11:55 pm-12:45 pm

2 stops9h 50m

$345

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Sat 5/2

7:15 am-2:57 pm

2 stops10h 42m

Portland

Wed 5/6

11:55 pm-9:41 am

1 stop6h 46m

$345

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 2/11

6:23 am-12:23 pm

1 stop9h 00m

Seattle/Tacoma Intl

Thu 2/19

11:15 pm-10:04 am

1 stop7h 49m

$348

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 2/11

6:23 am-12:23 pm

1 stop9h 00m

Seattle/Tacoma Intl

Mon 2/16

11:15 pm-10:04 am

1 stop7h 49m

$348

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Tue 2/17

7:50 am-2:20 pm

1 stop9h 30m

Seattle/Tacoma Intl

Thu 2/19

11:15 pm-10:04 am

1 stop7h 49m

$348

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 2/14

7:50 am-2:20 pm

1 stop9h 30m

Seattle/Tacoma Intl

Tue 2/17

11:15 pm-10:04 am

1 stop7h 49m

$348

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Wed 2/18

6:10 am-11:44 am

1 stop8h 34m

Spokane

Wed 2/25

12:25 pm-9:26 pm

1 stop6h 01m

$359

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Thu 2/19

3:15 pm-9:12 pm

1 stop8h 57m

Seattle/Tacoma Intl

Mon 2/23

11:35 pm-1:06 pm

1 stop10h 31m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 45 results
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Best time to book a flight from Louisville to Washington

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

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

Currently, September is the cheapest month in which you can book a flight from Louisville to State of Washington (average of $80). Flying from Louisville to State of Washington in July is currently the most expensive (average of $218). 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.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated January 20, 2026.
Read through reviews of airlines operating flights from Louisville to Washington, such as Alaska Airlines, Southwest, and Delta. 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
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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
11,760 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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
8,076 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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
9,180 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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
11,164 reviews
Alaska Airlines
8.0
Very good
11,760 reviews

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.0

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

Find useful and relevant information for your journey from Louisville to Washington. 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 from for flights from Louisville to Washington?

    Located just 5.3 mi from the city center, Louisville Intl (SDF) is the airport most travelers will use when flying to Washington from Louisville.

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

    Southwest, United Airlines, and Delta can get you from Louisville to State of Washington in just under 6h 50m. Your travel time can differ by up to 2h 10m. There are 1939 mi between Louisville and State of Washington. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The most popular flight routes from Louisville to State of Washington are Louisville Intl - Seattle/Tacoma Intl, Louisville Intl - Portland and Louisville Intl - Spokane.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Louisville to State of Washington (average of $80). Flying from Louisville to State of Washington in July is currently the most expensive (average of $218). 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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Alternative routes for Louisville to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Louisville to Washington

Discover the top 5 airlines that operate flights from Louisville to Washington. 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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$206Average$414FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$269Average$488FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$270Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$450FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$430Average$587FlexibilityNo cancel feeOn-time75%

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