Kaua'i

$230+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
May 23 — May 301
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Cheap 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 April 23, 2026.

This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 5/1810:00 am
BOI
-
LIH
1 stop27h 36m
Alaska Airlines
Mon 5/2510:26 pm
LIH
-
BOI
1 stop10h 36m
Alaska Airlines
Deal found 4/20$410
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:35 am
BOI
-
LIH
2 stops12h 40m
Multiple Airlines
Tue 6/93:40 pm
LIH
-
BOI
1 stop26h 53m
Multiple Airlines
Deal found 4/22$414
This Delta deal was found by Cheapflights users on 4/20. 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 5/1812:15 pm
BOI
-
LIH
1 stop10h 51m
Delta
Mon 5/259:55 pm
LIH
-
BOI
2 stops15h 55m
Delta
Deal found 4/20$444
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 5/1810:00 am
BOI
-
LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
-
BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/21$447
This Delta deal was found by Cheapflights users on 4/20. 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 5/1812:15 pm
BOI
-
LIH
1 stop10h 51m
Delta
Sat 5/239:55 pm
LIH
-
BOI
1 stop13h 05m
Delta
Deal found 4/20$468
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 5/1810:00 am
BOI
-
LIH
1 stop27h 36m
Multiple Airlines
Sat 5/234:12 pm
LIH
-
BOI
2 stops14h 08m
Multiple Airlines
Deal found 4/22$475
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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.
Sat 5/1610:00 am
BOI
-
LIH
1 stop27h 36m
Alaska Airlines
Sat 5/233:40 pm
LIH
-
BOI
1 stop27h 03m
Alaska Airlines
Deal found 4/20$477
This Southwest deal was found by Cheapflights users on 4/20. 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 9/2911:40 am
BOI
-
LIH
1 stop8h 30m
Southwest
Tue 10/68:30 pm
LIH
-
BOI
1 stop10h 25m
Southwest
Deal found 4/20$479
This Southwest deal was found by Cheapflights users on 4/22. 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 8/1211:40 am
BOI
-
LIH
1 stop8h 30m
Southwest
Wed 8/198:25 pm
LIH
-
BOI
1 stop9h 50m
Southwest
Deal found 4/22$480

Find 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 April 23, 2026.

Round-trip from

$410
(Alaska Airlines)

One-way from

$230
(Southwest)

Popular in

December

Cheapest in

January

Average price

$573
From Boise Air Term. Gowen Fld to Kaua'i
One-way flight from Boise Air Term. Gowen Fld to Kaua'i
Highest demand for flights based on searches. 8% potential increase in price ($55 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 23, 2026.
Use the filters below to find and compare flights from Boise to Kaua'i that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 5/18

12:15 pm-7:06 pm

1 stop10h 51m

Lihue

Sat 5/23

9:55 pm-3:00 pm

1 stop13h 05m

$468

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 5/10

6:00 am-7:06 pm

2 stops17h 06m

Lihue

Mon 5/18

9:55 pm-9:54 am

1 stop7h 59m

$474

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 5/18

10:00 am-9:36 am

1 stop27h 36m

Lihue

Sat 5/23

4:12 pm-10:20 am

2 stops14h 08m

$475

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sat 5/16

10:00 am-9:36 am

1 stop27h 36m

Lihue

Sat 5/23

3:40 pm-10:43 pm

1 stop27h 03m

$477

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 8/18

4:21 pm-9:25 pm

1 stop9h 04m

Lihue

Wed 8/19

9:35 pm-12:35 pm

1 stop11h 00m

$498

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 8/18

4:21 pm-9:25 pm

1 stop9h 04m

Lihue

Wed 8/19

6:00 am-11:00 pm

2 stops13h 00m

$498

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 5/17

10:34 am-7:06 pm

1 stop12h 32m

Lihue

Sun 5/24

9:55 pm-11:35 am

1 stop9h 40m

$498
Quickest round-trip

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 5/10

5:50 am-11:11 am

1 stop9h 21m

Lihue

Mon 5/18

10:26 pm-11:03 am

1 stop8h 37m

$498

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 5/10

6:00 am-3:39 pm

2 stops13h 39m

Lihue

Mon 5/18

10:26 pm-11:03 am

1 stop8h 37m

$504

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 5/10

5:50 am-11:11 am

1 stop9h 21m

Lihue

Sun 5/17

3:40 pm-10:43 pm

1 stop27h 03m

$505

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 16 resultsSorted by cheapest first
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, February is the cheapest month in which you can book a flight from Boise to Kaua'i (average of $163). Flying from Boise to Kaua'i in September is currently the most expensive (average of $421). 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 April 23, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andDelta 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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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.

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

8.0

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 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 10h 51m. Fly via Alaska Airlines or Delta to get the fastest option. Airlines will cover a distance of 2869 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boise to Kaua'i one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $176. United Airlines flights start at $213 while deals on Alaska Airlines start at $233 one-way.

  • 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, February is the cheapest month in which you can book a flight from Boise to Kaua'i (average of $163). Flying from Boise to Kaua'i in September is currently the most expensive (average of $421). 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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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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$227Average$668FlexibilityNo cancel feeOn-time69%
DeltaCheapest$229Average$482FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$240Average$643FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$379Average$634FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$410Average$581FlexibilityNo cancel feeOn-time63%

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