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

United Airlines, American Airlines, and Delta 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 May 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.

$165 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.

12:40 pm - 5:35 pm

SDF

PDX

7h 55m

1 stop

6:35 am - 5:49 pm

PDX

SDF

8h 14m

1 stop

$329Delta

Tue, Jul 21 - Tue, Jul 28

1:00 pm - 7:10 pm

SDF

PDX

9h 10m

2 stops

11:30 pm - 10:05 am

PDX

SDF

7h 35m

1 stop

$334Southwest

Tue, Jul 14 - Tue, Jul 21

7:49 pm - 12:55 am

SDF

PDX

8h 06m

1 stop

11:15 pm - 10:03 am

PDX

SDF

7h 48m

1 stop

$336American Airlines

Wed, Jul 8 - Wed, Jul 15

6:50 am - 1:38 pm

SDF

PDX

9h 48m

1 stop

2:08 pm - 12:09 am

PDX

SDF

7h 01m

1 stop

$342Delta

Tue, Aug 18 - Sat, Aug 22

5:15 am - 9:29 am

SDF

PDX

7h 14m

1 stop

7:10 am - 7:59 pm

PDX

SDF

9h 49m

1 stop

$355United Airlines

Thu, Aug 20 - Mon, Aug 24

3:20 pm - 10:45 pm

SDF

PDX

10h 25m

2 stops

11:30 pm - 10:25 am

PDX

SDF

7h 55m

1 stop

$360Southwest

Thu, Aug 20 - Sat, Aug 22

4:15 pm - 10:10 pm

SDF

PDX

8h 55m

2 stops

11:30 pm - 12:10 pm

PDX

SDF

9h 40m

2 stops

$366Southwest

Thu, Aug 20 - Mon, Aug 24

6:28 am - 12:27 pm

SDF

SEA

8h 59m

1 stop

10:12 am - 9:26 pm

SEA

SDF

8h 14m

1 stop

$395American Airlines

Tue, Sep 1 - Tue, Sep 8

3:59 pm - 11:56 pm

SDF

PUW

10h 57m

2 stops

6:03 am - 9:45 pm

PUW

SDF

12h 42m

2 stops

$757Alaska Airlines

Tue, Oct 27 - Sat, Oct 31

6:49 am - 4:43 pm

SDF

PUW

12h 54m

2 stops

6:06 am - 6:35 pm

PUW

SDF

9h 29m

2 stops

$808Alaska Airlines

Tue, Aug 25 - Sat, Aug 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

Jul 8

SDF7:49 pmLouisville Intl

8h 06m

1 stop

PDX12:55 amPortland

Jul 15

PDX11:15 pmPortland

7h 48m

1 stop

SDF10:03 amLouisville Intl

$336

American Airlines

Jul 8

SDF7:10 pmLouisville Intl

7h 55m

1 stop

PDX12:05 amPortland

Jul 15

PDX11:15 pmPortland

7h 48m

1 stop

SDF10:03 amLouisville Intl

$376

American Airlines

Jul 8

SDF7:49 pmLouisville Intl

8h 06m

1 stop

PDX12:55 amPortland

Jul 15

PDX11:15 pmPortland

7h 48m

1 stop

SDF10:03 amLouisville Intl

$391

Delta flights from Louisville to State of Washington

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

Delta

Jul 21

SDF12:40 pmLouisville Intl

7h 55m

1 stop

PDX5:35 pmPortland

Jul 28

PDX6:35 amPortland

8h 14m

1 stop

SDF5:49 pmLouisville Intl

$329

Delta

Aug 18

SDF6:50 amLouisville Intl

9h 48m

1 stop

PDX1:38 pmPortland

Aug 22

PDX2:08 pmPortland

7h 01m

1 stop

SDF12:09 amLouisville Intl

$342

Delta

Jul 21

SDF7:49 pmLouisville Intl

7h 09m

1 stop

SEA11:58 pmSeattle/Tacoma Intl

Aug 5

SEA6:05 amSeattle/Tacoma Intl

6h 47m

1 stop

SDF3:52 pmLouisville Intl

$375

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 7/21

12:40 pm-5:35 pm

1 stop7h 55m

Portland

Tue 7/28

6:35 am-5:49 pm

1 stop8h 14m

$329

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 7/14

1:00 pm-7:10 pm

2 stops9h 10m

Portland

Tue 7/21

11:30 pm-10:05 am

1 stop7h 35m

$334

Quickest round-trip

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Wed 7/8

7:49 pm-12:55 am

1 stop8h 06m

Portland

Wed 7/15

11:15 pm-10:03 am

1 stop7h 48m

$336

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Tue 8/18

6:50 am-1:38 pm

1 stop9h 48m

Portland

Sat 8/22

2:08 pm-12:09 am

1 stop7h 01m

$342

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 8/20

5:15 am-9:29 am

1 stop7h 14m

Portland

Mon 8/24

7:10 am-7:59 pm

1 stop9h 49m

$355

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 8/20

3:20 pm-10:45 pm

2 stops10h 25m

Portland

Sat 8/22

11:30 pm-10:25 am

1 stop7h 55m

$360

LouisvillePortland

SDF - PDX

SDFPDX

Louisville Intl

Thu 8/20

4:15 pm-10:10 pm

2 stops8h 55m

Portland

Mon 8/24

11:30 pm-12:10 pm

2 stops9h 40m

$366

LouisvilleSeattle

SDF - SEA

SDFSEA

Louisville Intl

Tue 9/1

6:28 am-12:27 pm

1 stop8h 59m

Seattle/Tacoma Intl

Tue 9/8

10:12 am-9:26 pm

1 stop8h 14m

$395

LouisvillePullman

SDF - PUW

SDFPUW

Louisville Intl

Tue 10/27

3:59 pm-11:56 pm

2 stops10h 57m

Pullman Moscow Regional

Sat 10/31

6:03 am-9:45 pm

2 stops12h 42m

$757

LouisvillePullman

SDF - PUW

SDFPUW

Louisville Intl

Tue 8/25

6:49 am-4:43 pm

2 stops12h 54m

Pullman Moscow Regional

Sat 8/29

6:06 am-6:35 pm

2 stops9h 29m

$808

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 July is, on average, the cheapest month to fly to State of Washington from Louisville, with most prices found around $122. If you aren’t able to travel to State of Washington during the month of July, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $187.

How far in advance should I book a flight from Louisville to 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 $434 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 $348 on momondo.

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

You could potentially save up to 38% 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 15m
Direct flights	None

The fastest flight from Louisville to State of Washington takes 6h 15m

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 May 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 $187	Free Cancellation	Rating 7.9 8,444 reviews	Search Delta flights
United Airlines	PriceFrom $264	Free Cancellation	Rating 7.4 9,751 reviews	Search United Airlines flights
American Airlines	PriceFrom $270	Free Cancellation	Rating 7.1 11,639 reviews	Search American Airlines flights
Southwest	PriceFrom $278	Free Cancellation	Rating 7.9 4,276 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $358	Free Cancellation	Rating 7.9 12,400 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.