Washington

$165+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SEA
Jun 11 — Jun 181
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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 May 12, 2026.

This Delta deal was found by Cheapflights users on 5/11. 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 7/87:49 pm
SDF
-
PDX
1 stop6h 29m
Delta
Wed 7/156:35 am
PDX
-
SDF
1 stop8h 14m
Delta
Deal found 5/11$329
This Southwest deal was found by Cheapflights users on 5/11. 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 7/217:45 pm
SDF
-
PDX
1 stop6h 45m
Southwest
Tue 8/2511:30 pm
PDX
-
SDF
2 stops9h 40m
Southwest
Deal found 5/11$334
This Southwest deal was found by Cheapflights users on 5/7. 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 7/211:00 pm
SDF
-
PDX
2 stops9h 10m
Southwest
Tue 7/285:35 am
PDX
-
SDF
2 stops8h 35m
Southwest
Deal found 5/7$339
This Delta deal was found by Cheapflights users on 5/11. 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 7/217:49 pm
SDF
-
PDX
1 stop6h 29m
Delta
Fri 8/2112:32 am
PDX
-
SDF
1 stop8h 23m
Delta
Deal found 5/11$342
This Southwest deal was found by Cheapflights users on 5/11. 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 8/67:10 pm
SDF
-
PDX
1 stop6h 55m
Southwest
Tue 8/1111:30 pm
PDX
-
SDF
2 stops9h 40m
Southwest
Deal found 5/11$347
This Delta deal was found by Cheapflights users on 5/11. 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 7/205:28 pm
SDF
-
PDX
1 stop7h 20m
Delta
Mon 8/2411:44 am
PDX
-
SDF
1 stop6h 35m
Delta
Deal found 5/11$355
This Southwest deal was found by Cheapflights users on 5/11. 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 8/2010:40 am
SDF
-
PDX
1 stop8h 55m
Southwest
Mon 8/3111:30 pm
PDX
-
SDF
2 stops9h 40m
Southwest
Deal found 5/11$360
This American Airlines deal was found by Cheapflights users on 5/10. 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 5/276:02 pm
SDF
-
PDX
1 stop9h 48m
American Airlines
Wed 6/36:37 am
PDX
-
SDF
1 stop9h 23m
American Airlines
Deal found 5/10$375
This American Airlines deal was found by Cheapflights users on 5/8. 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 5/287:45 pm
SDF
-
PDX
1 stop8h 05m
American Airlines
Sat 5/306:37 am
PDX
-
SDF
1 stop9h 23m
American Airlines
Deal found 5/8$377
This Southwest deal was found by Cheapflights users on 5/7. 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 9/248:30 am
SDF
-
PDX
1 stop9h 30m
Southwest
Thu 10/15:10 am
PDX
-
SDF
1 stop6h 50m
Southwest
Deal found 5/7$378
This Delta deal was found by Cheapflights users on 5/8. 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 6/27:49 pm
SDF
-
GEG
1 stop6h 17m
Delta
Tue 6/162:23 pm
GEG
-
SDF
1 stop6h 33m
Delta
Deal found 5/8$395
This Southwest deal was found by Cheapflights users on 5/11. 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 11/47:30 pm
SDF
-
SEA
1 stop7h 00m
Southwest
Wed 11/1111:20 am
SEA
-
SDF
1 stop6h 15m
Southwest
Deal found 5/11$395

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 May 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Delta)

One-way from

$165
(Delta)

Popular in

June

Cheapest in

January

Average price

$462
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. 16% potential increase in price ($87 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in May 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 May 12, 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 7/21

7:45 pm-11:30 pm

1 stop6h 45m

Portland

Tue 8/25

11:30 pm-12:10 pm

2 stops9h 40m

$334

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 7/20

5:28 pm-9:48 pm

1 stop7h 20m

Portland

Tue 8/25

1:33 pm-11:56 pm

1 stop7h 23m

$342

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 9/17

2:15 pm-8:45 pm

1 stop9h 30m

Portland

Mon 9/21

12:40 pm-11:05 pm

1 stop7h 25m

$355

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 7/20

5:28 pm-9:48 pm

1 stop7h 20m

Portland

Mon 8/24

11:44 am-9:19 pm

1 stop6h 35m

$355

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 9/14

2:15 pm-8:45 pm

1 stop9h 30m

Portland

Mon 9/21

12:40 pm-11:05 pm

1 stop7h 25m

$355

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 9/24

8:30 am-3:00 pm

1 stop9h 30m

Portland

Thu 10/1

5:10 am-3:00 pm

1 stop6h 50m

$378

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Wed 9/30

5:30 am-10:40 am

1 stop8h 10m

Portland

Sun 10/4

11:35 pm-10:15 am

1 stop7h 40m

$393

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Sun 6/7

8:00 pm-12:05 am

1 stop7h 05m

Portland

Wed 6/10

2:35 pm-12:15 am

1 stop6h 40m

$393

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Fri 7/31

8:05 pm-11:55 pm

1 stop6h 50m

Portland

Tue 8/4

11:30 pm-11:15 am

1 stop8h 45m

$393

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 6/2

6:00 am-11:17 am

1 stop8h 17m

Spokane

Tue 6/16

7:00 am-9:19 pm

2 stops11h 19m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 52 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

How far ahead should I book a flight from Louisville to State of Washington?

The price you pay for your flight from Louisville to State of Washington may vary depending on when you book. For the best chance of a lower fare, look to book 77 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 Louisville to State of Washington?

Currently, August is the cheapest month in which you can book a flight from Louisville to State of Washington (average of $153). Flying from Louisville to State of Washington in March is currently the most expensive (average of $356). 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 May 12, 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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

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?

    Southwest, Delta, and Alaska Airlines can get you from Louisville to State of Washington in just under 7h 25m. Your travel time can differ by up to 3h 55m. 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 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, August is the cheapest month in which you can book a flight from Louisville to State of Washington (average of $153). Flying from Louisville to State of Washington in March is currently the most expensive (average of $356). 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

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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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$187Average$413FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$264Average$476FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$270Average$403FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$456FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$358Average$577FlexibilityNo cancel feeOn-time75%

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