HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kaua'i

$638+ Cheap flights from Louisville (SDF) to Kaua'i

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — LIH
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to Kaua'i 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 Kaua'i

Keep the following information in mind while searching for Louisville to Kaua'i flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$638
(American Airlines)

Popular in

December

Cheapest in

August

Average price

$869
Provider with most accurate pricing for Louisville Intl-Lihue flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Lihue flights.
Search Deals
From Louisville Intl to Kaua'i
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Louisville to Kaua'i

Cheapest flights from Louisville to Kaua'i
Explore the most affordable flight options available from Louisville to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:35 amSDF - LIH
2 stops16h 41mDelta
Wed 11/1910:55 pmLIH - SDF
2 stops14h 53mDelta
Deal found 10/29$672
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:35 amSDF - LIH
2 stops16h 58mDelta
Fri 12/192:15 pmLIH - SDF
2 stops14h 14mDelta
Deal found 10/29$733
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:00 amSDF - LIH
1 stop13h 58mUnited Airlines
Wed 11/198:30 pmLIH - SDF
1 stop12h 49mUnited Airlines
Deal found 10/29$801
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/69:00 amSDF - LIH
1 stop12h 58mUnited Airlines
Fri 12/198:30 pmLIH - SDF
2 stops21h 00mUnited Airlines
Deal found 10/29$939
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:40 amSDF - LIH
2 stops22h 04mUnited Airlines
Sat 1/310:15 pmLIH - SDF
2 stops19h 15mUnited Airlines
Deal found 10/29$2,026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Kaua'i 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 October 30, 2025.
Use the filters below to find and compare flights from Louisville to Kaua'i that are best for you.

Fly from

Louisville

Fly to

Kaua'i

Route

Depart

Return

Price

LouisvilleLihue

SDF - LIH

SDFLIH

Louisville Intl

Fri 1/2

6:27 am-6:39 pm

2 stops17h 12m

Lihue

Wed 1/7

11:00 pm-8:47 pm

2 stops16h 47m

$638

LouisvilleLihue

SDF - LIH

SDFLIH

Louisville Intl

Thu 11/13

6:35 am-6:16 pm

2 stops16h 41m

Lihue

Wed 11/19

9:40 pm-5:23 pm

2 stops14h 43m

$672

LouisvilleLihue

SDF - LIH

SDFLIH

Louisville Intl

Fri 1/2

5:40 am-2:48 pm

2 stops14h 08m

Lihue

Wed 1/7

8:30 pm-2:26 pm

1 stop12h 56m

$727

LouisvilleLihue

SDF - LIH

SDFLIH

Louisville Intl

Sat 12/6

6:35 am-6:33 pm

2 stops16h 58m

Lihue

Fri 12/19

2:15 pm-9:29 am

2 stops14h 14m

$733

LouisvilleLihue

SDF - LIH

SDFLIH

Louisville Intl

Thu 11/13

8:00 am-4:58 pm

1 stop13h 58m

Lihue

Wed 11/19

8:30 pm-2:19 pm

1 stop12h 49m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Louisville to Kaua'i

Have a flexible travel schedule? Discover the best time to fly to Kaua'i 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 Kaua'i

What is the cheapest month to book a flight from Louisville to Kaua'i?

Currently, November is the cheapest month in which you can book a flight from Louisville to Kaua'i (average of $328). Flying from Louisville to Kaua'i in June is currently the most expensive (average of $846). 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.

Reviews of airlines servicing Kaua'i

Get insights into the airlines that provide service to Kaua'i. 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 Kaua'i. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Southwest and United Airlines from Louisville to Kaua'i to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Louisville to Kaua'i. 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 Kaua'i?

    Louisville Intl (SDF) is the airport you will fly out of if you book a flight from Louisville to Kaua'i. It is only a 5.3 mi journey to Louisville Intl (SDF) from Louisville’s city center.

  • How long is the flight from Louisville to Kaua'i?

    Airlines like American Airlines and Delta fly from Louisville to Kaua'i in about 16h 41m. The time it takes to get you to your destination can typically vary by up to 31m. Airlines will cover a distance of 4425 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Louisville to Kaua'i that include hotel bookings?

    Yes. In addition to deals on Louisville to Kaua'i flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Kaua'i?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Kaua'i.

  • Can I find deals for business class flights from Louisville to Kaua'i?

    Yes. Cheapflights offers flight deals from Louisville to Kaua'i 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 Kaua'i?

    Currently, November is the cheapest month in which you can book a flight from Louisville to Kaua'i (average of $328). Flying from Louisville to Kaua'i in June is currently the most expensive (average of $846). 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 Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Honolulu flights
Cincinnati to Honolulu flights
Louisville to Honolulu flights
Cincinnati to Kahului flights
Nashville to Kailua-Kona flights
Nashville to Kahului flights
Cincinnati to Kailua-Kona flights
Knoxville to Honolulu flights
Lexington to Kahului flights
Cincinnati to Lihue flights
Louisville to Kahului flights
Nashville to Lihue flights
Lexington to Honolulu flights
Knoxville to Kailua-Kona flights
Knoxville to Lihue flights
Louisville to Kailua-Kona flights
Nashville to Hilo flights
Louisville to Lihue flights
Knoxville to Kahului flights
Cincinnati to Hilo flights
Evansville to Honolulu flights
Blountville to Honolulu flights
Lexington to Lihue flights
Blountville to Kahului flights
Evansville to Kahului flights
Lexington to Kailua-Kona flights
Huntington to Honolulu flights
Blountville to Kailua-Kona flights
Cincinnati to Hoolehua flights
Evansville to Lihue flights
Nashville to Kapalua flights
Nashville to Lanai City flights
Knoxville to Kapalua flights
Nashville to Hana flights
Nashville to Waimea (Big Island) flights
Cincinnati to Kapalua flights
Louisville to Kapalua flights
Louisville to Hilo flights

Top 2 airlines flying from Louisville to Kaua'i

Discover the top 2 airlines that operate flights from Louisville to Kaua'i. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$565Average$1,178FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$570Average$865FlexibilityNo cancel feeOn-time69%

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.