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Kaua'i

$289+ 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
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$423
(Alaska Airlines)

One-way from

$297
(Delta)

Popular in

March

Cheapest in

August

Average price

$529
From Boise Air Term. Gowen Fld to Kaua'i
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One-way flight from Boise Air Term. Gowen Fld to Kaua'i
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 9/2910:08 amBOI - LIH
1 stop27h 35mAlaska Airlines
Tue 10/72:20 pmLIH - BOI
1 stop25h 21mAlaska Airlines
Deal found 6/16$423
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:45 amBOI - LIH
1 stop11h 18mDelta
Fri 9/59:40 pmLIH - BOI
1 stop11h 26mDelta
Deal found 6/16$431
This Hawaiian Airlines deal was found by Cheapflights users on 6/17. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/61:42 pmBOI - LIH
1 stop11h 49mHawaiian Airlines
Mon 10/1310:31 pmLIH - BOI
1 stop10h 39mHawaiian Airlines
Deal found 6/17$498
This Southwest deal was found by Cheapflights users on 6/15. 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 7/912:10 pmBOI - LIH
2 stops13h 20mSouthwest
Wed 7/168:00 amLIH - BOI
2 stops12h 25mSouthwest
Deal found 6/15$664
This American Airlines deal was found by Cheapflights users on 6/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/41:53 pmBOI - LIH
1 stop28h 34mAmerican Airlines
Sat 10/119:06 pmLIH - BOI
1 stop22h 30mAmerican Airlines
Deal found 6/16$733
This United Airlines deal was found by Cheapflights users on 6/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/207:07 pmBOI - LIH
1 stop28h 48mUnited Airlines
Thu 6/2611:10 pmLIH - BOI
1 stop10h 41mUnited Airlines
Deal found 6/16$836

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 June 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 9/29

10:08 am-9:43 am

1 stop27h 35m

Lihue

Tue 10/7

2:20 pm-7:41 pm

1 stop25h 21m

$423

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 8/27

11:45 am-7:03 pm

1 stop11h 18m

Lihue

Fri 9/5

9:40 pm-1:06 pm

1 stop11h 26m

$431

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/12

6:10 am-1:15 pm

1 stop10h 05m

Lihue

Thu 11/20

10:00 am-8:40 pm

1 stop7h 40m

$452

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 10/6

1:42 pm-9:31 pm

1 stop11h 49m

Lihue

Mon 10/13

10:31 pm-1:10 pm

1 stop10h 39m

$498

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/12

6:20 am-12:58 pm

2 stops33h 38m

Lihue

Thu 11/20

6:05 am-11:28 pm

3 stops14h 23m

$684

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sat 10/4

1:53 pm-2:27 pm

1 stop28h 34m

Lihue

Sat 10/11

9:06 pm-11:36 pm

1 stop22h 30m

$733

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/19

7:30 am-6:23 pm

2 stops13h 53m

$289

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Fri 10/10

1:42 pm-10:05 pm

2 stops12h 23m

$295

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 11/19

6:36 am-3:04 pm

1 stop11h 28m

$347

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Fri 10/10

2:44 pm-7:55 pm

1 stop9h 11m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

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 June 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.

Rainfall in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kaua'i ranges from 2.2 - 6.7 inches per month. January is typically the wettest month, when rainfall can reach 6.7 in. June is typically the driest time to visit Kaua'i when rainfall is around 2.2 in.

Temperature in Kaua'i by month

Plan your trip to Kaua'i by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kaua'i, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 June 18, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,965 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,809 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$280Average$668FlexibilityNo cancel feeOn-time85%
DeltaCheapest$321Average$457FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$381Average$602FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$423Average$850FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$450Average$642FlexibilityNo cancel feeOn-time63%

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