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Kaua'i

$211+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$323
(Delta)

One-way from

$211
(Alaska Airlines)

Popular in

December

Cheapest in

April

Average price

$461
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. 8% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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 4/249:25 amBOI - LIH
1 stop13h 19mDelta
Tue 5/610:00 pmLIH - BOI
1 stop9h 52mDelta
Deal found 2/19$323
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 8/272:45 pmBOI - LIH
1 stop10h 30mAlaska Airlines
Fri 9/55:10 pmLIH - BOI
2 stops12h 16mAlaska Airlines
Deal found 2/19$408
This Southwest deal was found by Cheapflights users on 2/20. 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.
Thu 2/276:30 amBOI - LIH
2 stops12h 00mSouthwest
Thu 3/610:00 amLIH - BOI
1 stop10h 05mSouthwest
Deal found 2/20$446
This Hawaiian Airlines deal was found by Cheapflights users on 2/20. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/23:25 pmGEG - LIH
1 stop8h 50mHawaiian Airlines
Tue 7/810:10 pmLIH - GEG
1 stop9h 50mHawaiian Airlines
Deal found 2/20$462
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 8/43:25 pmGEG - LIH
1 stop8h 50mAlaska Airlines
Thu 8/2110:10 pmLIH - GEG
1 stop9h 50mAlaska Airlines
Deal found 2/20$467
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 4/244:35 pmIDA - LIH
1 stop8h 57mAlaska Airlines
Tue 4/293:41 pmLIH - IDA
2 stops26h 55mAlaska Airlines
Deal found 2/19$479
This Delta deal was found by Cheapflights users on 2/20. 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.
Sun 8/39:10 amGEG - LIH
1 stop13h 06mDelta
Wed 8/209:45 pmLIH - GEG
1 stop7h 47mDelta
Deal found 2/20$495
This Southwest deal was found by Cheapflights users on 2/19. 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.
Mon 9/155:45 amGEG - LIH
2 stops13h 15mSouthwest
Sun 9/218:15 amLIH - GEG
2 stops11h 15mSouthwest
Deal found 2/19$533
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/256:32 amGEG - LIH
2 stops12h 30mAmerican Airlines
Thu 2/2711:15 pmLIH - GEG
2 stops12h 32mAmerican Airlines
Deal found 2/20$585
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/237:40 amBOI - LIH
1 stop18h 26mUnited Airlines
Thu 3/271:33 pmLIH - BOI
1 stop22h 46mUnited Airlines
Deal found 2/19$886
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 3/2010:25 amSUN - LIH
2 stops51h 44mAlaska Airlines
Fri 3/2812:55 pmLIH - SUN
2 stops40h 48mAlaska Airlines
Deal found 2/20$922
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/255:00 amGEG - LIH
3 stops34h 15mUnited Airlines
Thu 2/2712:23 pmLIH - GEG
2 stops30h 48mUnited Airlines
Deal found 2/20$943

Find flights from Idaho to Kaua'i within your budget

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 February 20, 2025.

Fly from

Idaho

Fly to

Kaua'i

Route

Depart

Return

Price

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 4/24

9:25 am-6:44 pm

1 stop13h 19m

Lihue

Tue 5/6

10:00 pm-11:52 am

1 stop9h 52m

$323

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 8/7

7:15 pm-9:30 am

1 stop18h 15m

Lihue

Thu 8/14

5:45 pm-12:44 pm

2 stops14h 59m

$408

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Sun 5/4

7:00 am-9:32 pm

1 stop17h 32m

Lihue

Mon 5/12

10:32 pm-2:26 pm

1 stop12h 54m

$468

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Thu 4/24

4:35 pm-9:32 pm

1 stop8h 57m

Lihue

Tue 4/29

3:41 pm-10:36 pm

2 stops26h 55m

$479

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Thu 3/6

7:25 am-8:09 pm

2 stops14h 44m

Lihue

Mon 3/10

8:15 pm-8:44 am

1 stop9h 29m

$488

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Fri 3/7

10:35 am-8:55 pm

2 stops12h 20m

Lihue

Fri 3/14

9:00 am-10:35 pm

1 stop10h 35m

$535

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 2/26

6:32 am-5:02 pm

2 stops12h 30m

Lihue

Sun 3/2

11:15 pm-1:47 pm

2 stops12h 32m

$584

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 3/18

6:35 am-2:50 pm

2 stops12h 15m

Lihue

Fri 3/21

6:10 am-11:05 pm

2 stops12h 55m

$834

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 3/23

7:40 am-10:06 pm

1 stop18h 26m

Lihue

Thu 3/27

1:33 pm-4:19 pm

1 stop22h 46m

$886

HaileyLihue

SUN - LIH

SUNLIH

Hailey Sun Valley-Friedman

Thu 3/20

10:25 am-10:09 am

2 stops51h 44m

Lihue

Fri 3/28

12:55 pm-9:43 am

2 stops40h 48m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 26 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.

Travel insights for flights from Idaho to Kaua'i

Get recent, data-driven insights about flights from Idaho to Kaua'i including ideal travel times, pricing trends, and more.

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 $686). 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 February 20, 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 February 20, 2025.
To help decide which airline to fly from Idaho to Kaua'i, see what other customers have to say about Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Alaska Airlines ($211), Delta ($222), and American Airlines ($236).

  • 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 $686). 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$321Average$929FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$367Average$633FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$376Average$900FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$440Average$610FlexibilityNo cancel feeOn-time63%
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