What is the cheapest airline that flies from Louisville Intl to Washington?

Southwest, Delta, and American Airlines are the most popular carriers operating from Louisville Intl to Washington

What airlines fly to State of Washington?

Delta, Alaska Airlines and American Airlines are the top three most popular airlines that fly to State of Washington from Louisville according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Washington?

Prices for flights from Louisville Intl Airport to Washington refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Washington?

There are 5 operators available for flights from Louisville Intl Airport to Washington as of April 2026.

How old do you have to be to fly from Louisville Intl Airport to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$161 Cheap Flights from Louisville to Washington in 2026

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Find the cheapest flights from Louisville to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:21 am - 5:37 pm

SDF

SEA

11h 16m

1 stop

7:50 pm - 8:36 am

SEA

SDF

33h 46m

2 stops

$300Multiple Airlines

Sat, May 9 - Mon, May 18

9:21 am - 6:35 pm

SDF

SEA

12h 14m

1 stop

7:50 pm - 8:36 am

SEA

SDF

33h 46m

2 stops

$317Multiple Airlines

Wed, May 6 - Mon, May 18

9:21 am - 5:37 pm

SDF

SEA

11h 16m

1 stop

11:06 am - 7:26 pm

SEA

SDF

29h 20m

1 stop

$318Multiple Airlines

Sat, May 9 - Tue, May 19

5:59 pm - 11:21 pm

SDF

PDX

8h 22m

1 stop

11:15 pm - 9:55 am

PDX

SDF

7h 40m

1 stop

$321Delta

Tue, Jun 16 - Tue, Jun 23

7:15 pm - 11:10 pm

SDF

PDX

6h 55m

1 stop

11:55 pm - 12:40 pm

PDX

SDF

9h 45m

2 stops

$326Southwest

Tue, May 5 - Tue, May 12

5:45 pm - 10:00 pm

SDF

PDX

7h 15m

1 stop

6:40 am - 3:50 pm

PDX

SDF

6h 10m

1 stop

$327Southwest

Sat, May 9 - Tue, May 12

5:43 pm - 11:59 pm

SDF

PDX

9h 16m

1 stop

12:40 am - 12:41 pm

PDX

SDF

9h 01m

1 stop

$333American Airlines

Thu, May 28 - Fri, May 29

7:36 am - 12:58 pm

SDF

PDX

8h 22m

1 stop

11:47 pm - 10:46 am

PDX

SDF

7h 59m

1 stop

$359American Airlines

Mon, Apr 27 - Mon, Apr 27

2:34 pm - 11:35 pm

SDF

GEG

12h 01m

2 stops

12:35 pm - 11:54 pm

GEG

SDF

8h 19m

1 stop

$380Delta

Tue, Jun 2 - Tue, Jun 16

3:37 pm - 9:16 pm

SDF

GEG

8h 39m

1 stop

7:25 pm - 9:02 am

GEG

SDF

10h 37m

2 stops

$421United Airlines

Tue, May 19 - Fri, May 29

American Airlines flights from Louisville to State of Washington

Our best American Airlines deals on Louisville to State of Washington flight tickets

American Airlines

May 28

SDF5:43 pmLouisville Intl

9h 16m

1 stop

PDX11:59 pmPortland

May 29

PDX12:40 amPortland

9h 01m

1 stop

SDF12:41 pmLouisville Intl

$333

American Airlines

Apr 27

SDF7:36 amLouisville Intl

8h 22m

1 stop

PDX12:58 pmPortland

Apr 27

PDX11:47 pmPortland

7h 59m

1 stop

SDF10:46 amLouisville Intl

$359

American Airlines

Apr 27

SDF7:36 amLouisville Intl

8h 22m

1 stop

PDX12:58 pmPortland

Apr 27

PDX11:47 pmPortland

7h 59m

1 stop

SDF10:46 amLouisville Intl

$374

Southwest flights from Louisville to State of Washington

Our best Southwest deals on Louisville to State of Washington flight tickets

Southwest

May 5

SDF7:15 pmLouisville Intl

6h 55m

1 stop

PDX11:10 pmPortland

May 12

PDX11:55 pmPortland

9h 45m

2 stops

SDF12:40 pmLouisville Intl

$326

Southwest

May 9

SDF5:45 pmLouisville Intl

7h 15m

1 stop

PDX10:00 pmPortland

May 12

PDX6:40 amPortland

6h 10m

1 stop

SDF3:50 pmLouisville Intl

$327

Southwest

May 5

SDF4:40 pmLouisville Intl

9h 30m

2 stops

PDX11:10 pmPortland

May 12

PDX8:50 amPortland

9h 15m

2 stops

SDF9:05 pmLouisville Intl

$331

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 5/9

9:21 am-5:37 pm

1 stop11h 16m

Seattle/Tacoma Intl

Mon 5/18

7:50 pm-8:36 am

2 stops33h 46m

$300

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Wed 5/6

9:21 am-6:35 pm

1 stop12h 14m

Seattle/Tacoma Intl

Mon 5/18

7:50 pm-8:36 am

2 stops33h 46m

$317

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Sat 5/9

9:21 am-5:37 pm

1 stop11h 16m

Seattle/Tacoma Intl

Tue 5/19

11:06 am-7:26 pm

1 stop29h 20m

$318

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 6/16

5:59 pm-11:21 pm

1 stop8h 22m

Portland

Tue 6/23

11:15 pm-9:55 am

1 stop7h 40m

$321

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 5/5

7:15 pm-11:10 pm

1 stop6h 55m

Portland

Tue 5/12

11:55 pm-12:40 pm

2 stops9h 45m

$326

Quickest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Sat 5/9

5:45 pm-10:00 pm

1 stop7h 15m

Portland

Tue 5/12

6:40 am-3:50 pm

1 stop6h 10m

$327

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 5/28

5:43 pm-11:59 pm

1 stop9h 16m

Portland

Fri 5/29

12:40 am-12:41 pm

1 stop9h 01m

$333

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Mon 4/27

7:36 am-12:58 pm

1 stop8h 22m

Portland

Mon 4/27

11:47 pm-10:46 am

1 stop7h 59m

$359

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 6/2

2:34 pm-11:35 pm

2 stops12h 01m

Spokane

Tue 6/16

12:35 pm-11:54 pm

1 stop8h 19m

$380

LouisvilleSpokane

SDF - GEG

SDFGEG

Louisville Intl

Tue 5/19

3:37 pm-9:16 pm

1 stop8h 39m

Spokane

Fri 5/29

7:25 pm-9:02 am

2 stops10h 37m

$421

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Louisville, with most prices found around $268. If you aren’t able to travel to State of Washington during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $363.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $428 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Louisville for as low as $330 on momondo.

Can stopping save me money on Louisville to State of Washington flights?

You could potentially save up to 15% on your flight if you consider stops on a Louisville to State of Washington flight.

Cheap Louisville to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to State of Washington

Fastest flight time	6h 17m
Direct flights	None

The fastest flight from Louisville to State of Washington takes 6h 17m

There are no direct flights from Louisville to State of Washington. There are no popular flight routes from Louisville to State of Washington.

Search flight deals

Frequently asked questions about flying from Louisville to Washington

When did momondo last update prices for flights from Louisville Intl Airport to Washington?
Prices for flights from Louisville Intl Airport to Washington refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Washington?
There are 5 operators available for flights from Louisville Intl Airport to Washington as of April 2026.
How old do you have to be to fly from Louisville Intl Airport to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Louisville to State of Washington

Compare and see reviews for airlines that fly from Louisville to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $206	Free Cancellation	Rating 7.9 8,387 reviews	Search Delta flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 9,548 reviews	Search United Airlines flights
American Airlines	PriceFrom $270	Free Cancellation	Rating 7.1 11,546 reviews	Search American Airlines flights
Southwest	PriceFrom $278	Free Cancellation	Rating 8.0 4,338 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $430	Free Cancellation	Rating 7.9 12,179 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Washington?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Washington for you.

Can I find flights from Louisville to Washington with flexible booking policies on momondo?

All flight searches from Louisville to Washington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Washington?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Louisville to Washington.

I’m not ready to book a flight from Louisville to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Louisville to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.