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Kaua'i

$185+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
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 October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(KAYAK)

One-way from

$185
(KAYAK)

Popular in

March

Cheapest in

August

Average price

$522
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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Highest demand for flights based on searches. 3% potential increase in price ($19 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 October 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 October 2, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/30. 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 10/2811:43 amBOI - LIH
1 stop13h 40mAlaska Airlines
Tue 11/412:23 pmLIH - BOI
1 stop20h 19mAlaska Airlines
Deal found 9/30$365
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/2810:05 amBOI - LIH
1 stop15h 18mAlaska Airlines
Mon 11/311:25 pmLIH - BOI
1 stop15h 37mAlaska Airlines
Deal found 10/1$391
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Wed 10/296:40 amBOI - LIH
1 stop11h 50mAmerican Airlines
Wed 11/510:39 pmLIH - BOI
1 stop12h 07mAmerican Airlines
Deal found 9/30$393
This Delta deal was found by Cheapflights users on 10/1. 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 10/299:22 amGEG - LIH
1 stop12h 43mDelta
Wed 11/510:40 pmLIH - GEG
1 stop7h 57mDelta
Deal found 10/1$393
This Alaska Airlines deal was found by Cheapflights users on 10/2. 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 10/2911:43 amBOI - LIH
2 stops11h 29mAlaska Airlines
Wed 11/511:25 pmLIH - BOI
1 stop8h 04mAlaska Airlines
Deal found 10/2$396
This Southwest deal was found by Cheapflights users on 10/1. 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 10/296:00 amGEG - LIH
2 stops15h 20mSouthwest
Wed 11/510:00 amLIH - GEG
1 stop8h 35mSouthwest
Deal found 10/1$396
This Delta deal was found by Cheapflights users on 10/1. 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 10/226:10 amGEG - LIH
2 stops13h 43mDelta
Thu 10/309:40 pmLIH - GEG
1 stop9h 56mDelta
Deal found 10/1$398
This Delta deal was found by Cheapflights users on 9/30. 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 10/289:00 amBOI - LIH
1 stop14h 05mDelta
Mon 11/310:40 pmLIH - BOI
1 stop11h 40mDelta
Deal found 9/30$408
This Alaska Airlines deal was found by Cheapflights users on 10/2. 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 11/136:28 amBOI - LIH
1 stop18h 57mAlaska Airlines
Fri 11/2112:54 pmLIH - BOI
1 stop20h 12mAlaska Airlines
Deal found 10/2$410
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/3011:43 amBOI - LIH
2 stops12h 47mAlaska Airlines
Thu 11/66:00 amLIH - BOI
2 stops11h 10mAlaska Airlines
Deal found 10/1$411
This Delta deal was found by Cheapflights users on 10/2. 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.
Sun 12/711:19 amGEG - LIH
1 stop10h 51mDelta
Sun 12/149:50 pmLIH - GEG
1 stop8h 43mDelta
Deal found 10/2$433
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 12/711:45 amGEG - LIH
2 stops12h 38mAlaska Airlines
Sun 12/145:00 pmLIH - GEG
2 stops13h 52mAlaska Airlines
Deal found 10/1$444

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 October 2, 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

Tue 10/28

11:43 am-9:23 pm

1 stop13h 40m

Lihue

Tue 11/4

12:23 pm-11:42 am

1 stop20h 19m

$365

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 10/29

9:22 am-7:05 pm

1 stop12h 43m

Lihue

Wed 11/5

10:40 pm-8:37 am

1 stop7h 57m

$393

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 10/22

11:20 am-7:05 pm

1 stop10h 45m

Lihue

Thu 10/30

9:40 pm-8:37 am

1 stop7h 57m

$393

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 10/27

11:20 am-7:05 pm

1 stop10h 45m

Lihue

Tue 11/4

10:40 pm-12:35 pm

1 stop11h 55m

$393

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 10/29

11:43 am-7:12 pm

2 stops11h 29m

Lihue

Wed 11/5

11:25 pm-10:29 am

1 stop8h 04m

$396

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 10/28

10:05 am-7:12 pm

2 stops13h 07m

Lihue

Mon 11/3

11:25 pm-10:29 am

1 stop8h 04m

$398

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 10/29

11:12 am-7:05 pm

2 stops11h 53m

Lihue

Wed 11/5

10:40 pm-11:01 am

1 stop9h 21m

$398

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 10/29

6:00 am-6:20 pm

2 stops15h 20m

Lihue

Wed 11/5

9:10 pm-3:45 pm

2 stops16h 35m

$402

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 10/30

11:43 am-8:30 pm

2 stops12h 47m

Lihue

Thu 11/6

6:00 am-8:10 pm

2 stops11h 10m

$411

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 10/28

6:00 am-4:53 pm

2 stops14h 53m

Lihue

Mon 11/3

10:40 pm-1:20 pm

1 stop11h 40m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/30

Showing 1-10 of 33 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 $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 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 October 2, 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.

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.

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

    Airlines like Alaska Airlines, Delta, and American Airlines fly from Idaho to Kaua'i in about 11h 49m. The time it takes to get you to your destination can typically vary by up to 1h 51m. Airlines will cover a distance of 3069 mi. This flight may include one or multiple stops.

  • 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 Alaska Airlines ($185), Southwest ($196), and Delta ($197).

  • 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 $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

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Alternative routes for Idaho to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Idaho to Kaua'i

Discover the top 5 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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$280Average$668FlexibilityNo cancel feeOn-time85%
DeltaCheapest$323Average$452FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$345Average$831FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$381Average$644FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$450Average$630FlexibilityNo cancel feeOn-time63%

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