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Kaua'i

$177+ Cheap flights from Idaho 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Idaho to Kaua'i

Keep the following information in mind while searching for Idaho to Kaua'i flight deals. Data was last updated April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$341
(Delta)

One-way from

$177
(Delta)

Popular in

March

Cheapest in

February

Average price

$475
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Lihue flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Lihue flights.
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From Idaho to Kaua'i
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One-way flight from Idaho to Kaua'i
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Idaho to Kaua'i

Cheapest flights from Idaho to Kaua'i
Explore the most affordable flight options available from Idaho to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Delta deal was found by Cheapflights users on 4/23. 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 8/272:00 pmBOI - LIH
1 stop9h 16mDelta
Fri 9/59:45 pmLIH - BOI
1 stop11h 29mDelta
Deal found 4/23$341
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 10/117:15 pmBOI - LIH
1 stop18h 20mAlaska Airlines
Sat 10/187:42 pmLIH - BOI
2 stops14h 03mAlaska Airlines
Deal found 4/23$443
This Hawaiian Airlines deal was found by Cheapflights users on 4/23. 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 9/16:00 amGEG - LIH
1 stop10h 21mHawaiian Airlines
Fri 9/510:30 pmLIH - GEG
1 stop7h 40mHawaiian Airlines
Deal found 4/23$457
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.
Tue 9/166:30 amGEG - LIH
2 stops13h 30mAlaska Airlines
Tue 9/2310:47 amLIH - GEG
1 stop9h 11mAlaska Airlines
Deal found 4/22$462
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:05 amGEG - LIH
2 stops15h 18mDelta
Tue 9/239:26 pmLIH - GEG
2 stops14h 18mDelta
Deal found 4/22$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.
Wed 5/214:20 pmIDA - LIH
2 stops17h 55mAlaska Airlines
Wed 5/281:00 pmLIH - IDA
2 stops22h 40mAlaska Airlines
Deal found 4/22$588
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:05 amGEG - LIH
2 stops11h 20mSouthwest
Mon 4/288:15 amLIH - GEG
2 stops12h 30mSouthwest
Deal found 4/21$690
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.
Fri 5/2311:40 amBOI - LIH
2 stops10h 30mSouthwest
Tue 5/278:15 amLIH - BOI
2 stops11h 40mSouthwest
Deal found 4/22$748
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 8/177:00 amIDA - LIH
1 stop12h 35mUnited Airlines
Sun 8/247:40 pmLIH - IDA
1 stop10h 07mUnited Airlines
Deal found 4/23$791
This Delta deal was found by Cheapflights users on 4/23. 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 5/86:15 amLWS - LIH
2 stops14h 34mDelta
Mon 5/129:45 pmLIH - LWS
2 stops15h 21mDelta
Deal found 4/23$896
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Mon 11/242:27 pmBOI - LIH
1 stop27h 37mAmerican Airlines
Sun 11/3010:11 pmLIH - BOI
1 stop22h 25mAmerican Airlines
Deal found 4/23$994
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Mon 8/45:42 pmBOI - LIH
3 stops21h 29mUnited Airlines
Sat 8/98:30 amLIH - BOI
2 stops27h 25mUnited Airlines
Deal found 4/23$1,008

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 24, 2025.
Use the filters below to find and compare flights from Idaho to Kaua'i that are best for you.

Fly from

Idaho

Fly to

Kaua'i

Route

Depart

Return

Price

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 8/27

2:00 pm-7:16 pm

1 stop9h 16m

Lihue

Fri 9/5

9:45 pm-1:14 pm

1 stop11h 29m

$341

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sat 10/11

7:15 pm-9:35 am

1 stop18h 20m

Lihue

Sat 10/18

7:42 pm-1:45 pm

2 stops14h 03m

$443

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 5/19

4:16 pm-9:33 pm

1 stop8h 17m

Lihue

Fri 5/23

10:33 pm-10:02 am

1 stop8h 29m

$487

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 5/20

7:25 am-9:33 pm

1 stop17h 08m

Lihue

Thu 6/5

3:43 pm-9:06 am

2 stops14h 23m

$492

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 5/21

9:05 am-7:00 pm

1 stop12h 55m

Lihue

Thu 6/5

9:45 pm-9:58 am

1 stop9h 13m

$525

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Wed 5/21

4:20 pm-6:15 am

2 stops17h 55m

Lihue

Wed 5/28

1:00 pm-3:40 pm

2 stops22h 40m

$588

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 5/19

9:50 am-6:10 pm

2 stops11h 20m

Lihue

Fri 5/23

8:15 am-11:45 pm

2 stops12h 30m

$704

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Fri 5/23

11:40 am-6:10 pm

2 stops10h 30m

Lihue

Tue 5/27

8:15 am-11:55 pm

2 stops11h 40m

$748

LewistonLihue

LWS - LIH

LWSLIH

Lewiston Nez Perce Rgnl

Thu 5/8

6:15 am-5:49 pm

2 stops14h 34m

Lihue

Mon 5/12

9:45 pm-4:06 pm

2 stops15h 21m

$896

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Mon 8/4

5:42 pm-11:11 am

3 stops21h 29m

Lihue

Sat 8/9

8:30 am-3:55 pm

2 stops27h 25m

$1,008

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 22 results
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Best time to book a flight from Idaho to Kaua'i

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Kaua'i (average of $440). Flying from Idaho to Kaua'i in June is currently the most expensive (average of $683). 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 ID to FUS?

Find hourly flight availability from Idaho 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 April 24, 2025.

When flying from Idaho 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 April 24, 2025.
To help decide which airline to fly from Idaho to Kaua'i, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Crew

8.5

Food

7.1

Boarding

8.2

Entertainment

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Idaho 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 are the cheapest airlines to fly from Idaho to Kaua'i one-way?

    The cheapest airlines for a one-way flight from Idaho to Kaua'i are Delta ($177), Alaska Airlines ($217), and Hawaiian Airlines ($244).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho to Kaua'i (average of $440). Flying from Idaho to Kaua'i in June is currently the most expensive (average of $683). 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

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Top 4 airlines flying from Idaho to Kaua'i

Discover the top 4 airlines that operate flights from Idaho 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$322Average$905FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$381Average$626FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$450Average$641FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$475Average$869FlexibilityNo cancel feeOn-time69%

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