HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$168+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SEA
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Washington 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 Louisville to Washington

Keep the following information in mind while searching for Louisville to Washington flight deals. Data was last updated November 2, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$266
(American Airlines)

One-way from

$168
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$411
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. 12% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 November 2, 2025.

This American Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/46:24 pmSDF - SEA
1 stop7h 37mAmerican Airlines
Wed 12/109:00 amSEA - SDF
1 stop8h 04mAmerican Airlines
Deal found 10/31$266
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 12/1810:48 amSDF - SEA
1 stop9h 21mAmerican Airlines
Mon 12/2912:14 amSEA - SDF
1 stop10h 16mAmerican Airlines
Deal found 11/1$295
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/24:26 pmSDF - SEA
1 stop7h 50mAmerican Airlines
Mon 12/812:31 amSEA - SDF
1 stop9h 40mAmerican Airlines
Deal found 11/1$307
This Southwest deal was found by Cheapflights users on 10/31. 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 12/45:50 pmSDF - SEA
1 stop8h 05mSouthwest
Wed 12/105:40 amSEA - SDF
2 stops8h 30mSouthwest
Deal found 10/31$312
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/43:33 pmSDF - PDX
1 stop8h 42mUnited Airlines
Sat 12/61:14 pmPDX - SDF
1 stop5h 55mUnited Airlines
Deal found 10/31$335
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Thu 12/186:00 amSDF - SEA
1 stop7h 02mAmerican Airlines
Mon 12/296:00 amSEA - SDF
1 stop9h 21mAmerican Airlines
Deal found 11/1$352
This American Airlines deal was found by Cheapflights users on 11/2. 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 11/245:20 pmSDF - SEA
1 stop9h 19mAmerican Airlines
Thu 11/2712:59 amSEA - SDF
1 stop9h 13mAmerican Airlines
Deal found 11/2$382
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Fri 12/123:33 pmSDF - SEA
1 stop9h 13mUnited Airlines
Sat 12/1312:35 pmSEA - SDF
1 stop6h 34mUnited Airlines
Deal found 11/2$386
This Delta deal was found by Cheapflights users on 10/31. 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.
Thu 12/43:16 pmSDF - PDX
2 stops10h 24mDelta
Fri 12/512:32 amPDX - SDF
1 stop8h 25mDelta
Deal found 10/31$401
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Tue 12/23:33 pmSDF - SEA
1 stop9h 13mUnited Airlines
Tue 12/97:00 amSEA - SDF
2 stops10h 28mUnited Airlines
Deal found 11/1$409
This American Airlines deal was found by Cheapflights users on 11/1. 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 11/194:26 pmSDF - SEA
1 stop10h 16mAmerican Airlines
Sun 11/2312:59 amSEA - SDF
1 stop12h 51mAmerican Airlines
Deal found 11/1$410
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 12/206:16 pmSDF - PDX
1 stop9h 38mAmerican Airlines
Mon 12/295:33 amPDX - SDF
1 stop8h 55mAmerican Airlines
Deal found 11/1$437

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 November 2, 2025.
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

Thu 12/4

6:24 pm-11:01 pm

1 stop7h 37m

Seattle/Tacoma Intl

Wed 12/10

9:00 am-8:04 pm

1 stop8h 04m

$266

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Thu 12/18

10:48 am-5:09 pm

1 stop9h 21m

Seattle/Tacoma Intl

Mon 12/29

12:14 am-1:30 pm

1 stop10h 16m

$295

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Thu 12/4

5:50 pm-10:55 pm

1 stop8h 05m

Seattle/Tacoma Intl

Wed 12/10

5:40 am-5:10 pm

2 stops8h 30m

$312

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Wed 2/18

6:00 am-10:35 am

1 stop7h 35m

Portland

Mon 2/23

8:35 am-6:40 pm

1 stop7h 05m

$328

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 2/17

3:15 pm-10:59 pm

2 stops10h 44m

Portland

Mon 2/23

1:18 pm-10:37 pm

1 stop6h 19m

$333

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 1/26

3:22 pm-11:06 pm

2 stops10h 44m

Portland

Tue 1/27

7:00 am-5:37 pm

1 stop7h 37m

$333

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 1/5

5:30 pm-12:15 am

1 stop9h 45m

Portland

Sat 1/10

7:10 am-4:45 pm

1 stop6h 35m

$335

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 12/4

3:33 pm-9:15 pm

1 stop8h 42m

Portland

Sat 12/6

1:14 pm-10:09 pm

1 stop5h 55m

$335

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 1/26

12:50 pm-10:15 pm

2 stops12h 25m

Portland

Tue 1/27

6:20 am-10:10 pm

2 stops12h 50m

$338

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 2/25

6:00 am-11:01 am

1 stop8h 01m

Seattle/Tacoma Intl

Fri 2/27

1:51 pm-12:25 am

1 stop7h 34m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 48 results
1
2
3
...
5

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.

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

Find hourly flight availability from Louisville to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

It’s typically best to fly out from Louisville to State of Washington in the evening. Doing so could potentially save you 41% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Louisville to State of Washington?

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

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

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 November 2, 2025.
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
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,234 reviews
Alaska Airlines
8.0
Very good
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Southwest
8.0
Very good
4,240 reviews
Alaska Airlines
8.0
Very good
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
8,001 reviews
Alaska Airlines
8.0
Very good
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,997 reviews
Alaska Airlines
8.0
Very good
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
11,034 reviews
Alaska Airlines
8.0
Very good
11,234 reviews

Overall

8.0

Entertainment

7.0

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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?

    American Airlines, Southwest, and United Airlines can get you from Louisville to State of Washington in just under 7h 37m. Your travel time can differ by up to 3h 07m. 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 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 $168 on American Airlines. Other airlines that offer cheap prices include Delta from $176 and United Airlines from $218 one-way.

  • 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

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 Washington

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Orlando flights
Cincinnati to John F Kennedy Intl flights
Cincinnati to LaGuardia flights
Cincinnati to Las Vegas flights
Cincinnati to Dallas/Fort Worth flights
Nashville to John F Kennedy Intl flights
Cincinnati to Fort Lauderdale flights
Nashville to LaGuardia flights
Cincinnati to Newark flights
Cincinnati to Denver flights
Cincinnati to Miami flights
Nashville to Newark flights
Nashville to Denver flights
Louisville to LaGuardia flights
Cincinnati to Fort Myers flights
Cincinnati to Hobby flights
Cincinnati to Sky Harbor Intl flights
Cincinnati to Tampa flights
Nashville to Los Angeles flights
Cincinnati to Atlanta flights
Nashville to Orlando flights
Nashville to Dallas/Fort Worth flights
Nashville to Miami flights
Louisville to Orlando flights
Cincinnati to George Bush Intcntl flights
Nashville to Las Vegas flights
Nashville to O'Hare Intl flights
Cincinnati to Los Angeles flights
Louisville to Las Vegas flights
Nashville to Sky Harbor Intl flights
Louisville to Newark flights
Nashville to Seattle flights
Nashville to Fort Lauderdale flights
Nashville to Boston flights
Knoxville to LaGuardia flights
Cincinnati to Orlando Sanford Intl flights
Louisville to John F Kennedy Intl flights
Cincinnati to Boston flights
Cincinnati to Seattle flights
Louisville to Miami flights
Nashville to Dulles Intl flights
Nashville to Hobby flights
Knoxville to Dallas/Fort Worth flights
Cincinnati to Love Field flights
Louisville to Fort Lauderdale flights
Nashville to Reagan-National flights
Nashville to Santa Ana flights
Cincinnati to Reagan-National flights
Knoxville to Denver flights
Nashville to Ontario flights

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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$206Average$404FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$270Average$402FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$270Average$506FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$278Average$454FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$506Average$587FlexibilityNo 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.
Site
©2025 Cheapflights