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

$294+ Cheap flights from Boise (BOI) to Kaua'i

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boise 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 Boise to Kaua'i

Keep the following information in mind while searching for Boise to Kaua'i flight deals. Data was last updated August 18, 2025.

Round-trip from

$417
(Alaska Airlines)

One-way from

$294
(Alaska Airlines)

Popular in

March

Cheapest in

August

Average price

$405
From Boise Air Term. Gowen Fld to Kaua'i
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Kaua'i
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Boise to Kaua'i

Cheapest flights from Boise to Kaua'i
Explore the most affordable flight options available from Boise to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/64:25 pmBOI - LIH
1 stop9h 06mAlaska Airlines
Tue 10/142:20 pmLIH - BOI
1 stop25h 26mAlaska Airlines
Deal found 8/17$417
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:59 amBOI - LIH
2 stops15h 24mAlaska Airlines
Wed 11/59:54 amLIH - BOI
2 stops9h 14mAlaska Airlines
Deal found 8/16$421
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:41 amBOI - LIH
1 stop29h 05mAlaska Airlines
Mon 11/34:16 pmLIH - BOI
1 stop26h 52mAlaska Airlines
Deal found 8/16$427
This Delta deal was found by Cheapflights users on 8/18. 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 9/299:00 amBOI - LIH
1 stop13h 59mDelta
Tue 10/79:40 pmLIH - BOI
1 stop11h 40mDelta
Deal found 8/18$431
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:00 amBOI - LIH
2 stops12h 50mAlaska Airlines
Fri 9/1910:50 amLIH - BOI
1 stop20h 51mAlaska Airlines
Deal found 8/17$437
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:54 amBOI - LIH
2 stops10h 39mAlaska Airlines
Fri 11/211:20 pmLIH - BOI
1 stop7h 39mAlaska Airlines
Deal found 8/17$448

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 August 18, 2025.
Use the filters below to find and compare flights from Boise to Kaua'i that are best for you.

Fly from

Boise

Fly to

Kaua'i

Route

Depart

Return

Price

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 10/6

4:25 pm-9:31 pm

1 stop9h 06m

Lihue

Tue 10/14

2:20 pm-7:46 pm

1 stop25h 26m

$417

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 10/29

9:59 am-9:23 pm

2 stops15h 24m

Lihue

Wed 11/5

2:48 pm-1:40 pm

1 stop19h 52m

$421

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 10/28

8:41 am-9:46 am

1 stop29h 05m

Lihue

Mon 11/3

4:16 pm-10:08 pm

1 stop26h 52m

$427

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 10/29

2:00 pm-7:05 pm

1 stop9h 05m

Lihue

Wed 11/5

10:40 pm-1:20 pm

1 stop11h 40m

$431

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 10/27

11:41 am-7:05 pm

1 stop11h 24m

Lihue

Fri 11/7

10:40 pm-11:01 am

1 stop9h 21m

$431

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 9/29

2:05 pm-6:59 pm

1 stop8h 54m

Lihue

Tue 10/7

9:40 pm-1:20 pm

1 stop11h 40m

$431

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/19

5:54 am-1:33 pm

2 stops10h 39m

$294

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/19

10:38 am-8:22 pm

1 stop12h 44m

$332

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Fri 10/10

7:00 am-10:05 pm

2 stops19h 05m

$388

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Fri 12/19

8:30 am-2:48 pm

1 stop9h 18m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 12 results
1
2

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

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

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

Currently, January is the cheapest month in which you can book a flight from Boise to Kaua'i (average of $440). Flying from Boise to Kaua'i in June is currently the most expensive (average of $689). 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 BOI to FUS?

Find hourly flight availability from Boise to Kaua'i. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Boise to Kaua'i, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 18, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Boise to Kaua'i have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

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
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

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
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,664 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

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
8,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

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 Boise 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 Boise to Kaua'i?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly out of when you book flights from Boise to Kaua'i.

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

    There are many flights that can get you from Boise to Kaua'i in 9h 06m. Fly via Alaska Airlines to get the fastest option. Airlines will cover a distance of 2869 mi.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boise to Kaua'i (average of $440). Flying from Boise to Kaua'i in June is currently the most expensive (average of $689). 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.

Top 5 airlines flying from Boise to Kaua'i

Discover the top 5 airlines that operate flights from Boise 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$280Average$668FlexibilityNo cancel feeOn-time85%
DeltaCheapest$321Average$449FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$345Average$866FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$381Average$600FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$450Average$641FlexibilityNo cancel feeOn-time63%

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.