Washington

$137+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SEA
Apr 28 — May 51
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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 March 29, 2026.

This American Airlines deal was found by Cheapflights users on 3/24. 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 5/277:45 pm
SDF
-
SEA
1 stop8h 14m
American Airlines
Wed 6/37:31 am
SEA
-
SDF
1 stop8h 29m
American Airlines
Deal found 3/24$293
This Southwest deal was found by Cheapflights users on 3/24. 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 5/64:40 pm
SDF
-
SEA
2 stops9h 55m
Southwest
Wed 5/1311:45 pm
SEA
-
SDF
1 stop7h 10m
Southwest
Deal found 3/24$298
This Southwest deal was found by Cheapflights users on 3/26. 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 5/136:40 pm
SDF
-
PDX
1 stop6h 20m
Southwest
Mon 5/1811:55 pm
PDX
-
SDF
1 stop6h 55m
Southwest
Deal found 3/26$300
This Southwest deal was found by Cheapflights users on 3/26. 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 5/53:30 pm
SDF
-
PDX
2 stops10h 30m
Southwest
Sat 5/96:00 am
PDX
-
SDF
1 stop7h 55m
Southwest
Deal found 3/26$305
This American Airlines deal was found by Cheapflights users on 3/25. 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 5/137:01 pm
SDF
-
PDX
1 stop7h 55m
American Airlines
Mon 5/1811:47 pm
PDX
-
SDF
1 stop7h 59m
American Airlines
Deal found 3/25$307
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 6/15:52 pm
SDF
-
SEA
1 stop7h 54m
Delta
Tue 6/210:35 pm
SEA
-
SDF
1 stop7h 21m
Delta
Deal found 3/25$324
This Southwest deal was found by Cheapflights users on 3/24. 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.
Thu 5/288:10 pm
SDF
-
PDX
1 stop7h 00m
Southwest
Mon 6/111:55 pm
PDX
-
SDF
1 stop6h 55m
Southwest
Deal found 3/24$327
This American Airlines deal was found by Cheapflights users on 3/25. 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.
Fri 5/15:41 pm
SDF
-
PDX
1 stop8h 08m
American Airlines
Tue 5/51:23 pm
PDX
-
SDF
1 stop7h 25m
American Airlines
Deal found 3/25$328
This Southwest deal was found by Cheapflights users on 3/25. 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.
Thu 5/148:10 pm
SDF
-
PDX
1 stop7h 00m
Southwest
Mon 5/188:50 pm
PDX
-
SDF
2 stops10h 00m
Southwest
Deal found 3/25$332
This American Airlines deal was found by Cheapflights users on 3/26. 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 5/266:56 pm
SDF
-
SEA
1 stop8h 20m
American Airlines
Tue 6/211:24 pm
SEA
-
SDF
1 stop8h 12m
American Airlines
Deal found 3/26$338
This Southwest deal was found by Cheapflights users on 3/29. 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.
Thu 5/78:10 pm
SDF
-
PDX
1 stop7h 00m
Southwest
Mon 5/1111:55 pm
PDX
-
SDF
2 stops9h 45m
Southwest
Deal found 3/29$338
This American Airlines deal was found by Cheapflights users on 3/24. 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 5/267:45 pm
SDF
-
SEA
1 stop8h 14m
American Airlines
Mon 6/111:58 pm
SEA
-
SDF
1 stop7h 19m
American Airlines
Deal found 3/24$341

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 March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$293
(American Airlines)

One-way from

$137
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$443
Provider with most accurate pricing for Louisville Intl-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Louisville Intl-Seattle/Tacoma Intl flights.
From Louisville Intl to Washington
One-way flight from Louisville Intl to Washington
Highest demand for flights based on searches. 14% potential increase in price ($72 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 29, 2026.
Use the filters below to find and compare flights from Louisville to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 6/9

7:51 pm-11:21 pm

1 stop6h 30m

Portland

Wed 6/24

9:25 pm-8:57 am

1 stop8h 32m

$347

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 5/2

2:55 pm-7:00 pm

1 stop7h 05m

Seattle/Tacoma Intl

Sat 5/9

2:28 pm-11:56 pm

1 stop6h 28m

$355

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 6/9

7:51 pm-11:21 pm

1 stop6h 30m

Portland

Thu 6/25

9:25 pm-8:57 am

1 stop8h 32m

$365

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 5/26

3:29 pm-9:20 pm

1 stop8h 51m

Spokane

Mon 6/1

10:40 pm-10:25 am

1 stop8h 45m

$377

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 6/2

2:34 pm-11:06 pm

2 stops11h 32m

Spokane

Tue 6/16

10:48 pm-8:57 am

1 stop7h 09m

$380

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 5/6

4:40 pm-12:10 am

2 stops10h 30m

Seattle/Tacoma Intl

Wed 5/13

6:30 am-8:35 pm

2 stops11h 05m

$391

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 5/2

1:45 pm-10:00 pm

2 stops11h 15m

Seattle/Tacoma Intl

Sat 5/9

11:55 pm-12:50 pm

2 stops9h 55m

$392

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 4/25

1:45 pm-6:15 pm

1 stop7h 30m

Seattle/Tacoma Intl

Sat 5/2

11:55 pm-12:50 pm

2 stops9h 55m

$392
Quickest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 4/30

5:28 pm-9:09 pm

1 stop6h 41m

Portland

Sun 5/3

2:41 pm-11:56 pm

1 stop6h 15m

$395

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Sun 4/26

6:04 am-12:49 pm

1 stop9h 45m

Portland

Tue 4/28

11:15 pm-10:06 am

1 stop7h 51m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 53 resultsSorted by cheapest first
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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 $220). 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.

How much does it cost to fly round-trip from Louisville to State of Washington?

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 March 29, 2026.
Read through reviews of airlines operating flights from Louisville to Washington, such as Southwest,Alaska Airlines, andDelta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    Delta, United Airlines, and Southwest can get you from Louisville to State of Washington in just under 6h 30m. Your travel time can differ by up to 4h. There are 1944 mi between Louisville and State of Washington. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $114 on United Airlines. Other airlines that offer cheap prices include American Airlines from $128 and Delta from $133 one-way.

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

  • 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 $220). 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.

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 March 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$206Average$408FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$446FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$270Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$449FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$430Average$577FlexibilityNo cancel feeOn-time75%

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