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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LIH
Dec 27 — Jan 31
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Kaua'i with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Idaho to Kaua'i

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to Kaua'i (zzFUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$322
(Delta)

One-way from

$185
(Alaska Airlines)
From Idaho to Kaua'i
One-way flight from Idaho to Kaua'i

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 December 22, 2024.

This Alaska Airlines deal was found by Cheapflights users on 12/20. 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.
Tue 12/243:34 pmIDA - LIH
2 stops22h 48mAlaska Airlines
Wed 12/257:00 pmLIH - IDA
2 stops25h 59mAlaska Airlines
Deal found 12/20$1,031
This Delta deal was found by Cheapflights users on 12/22. 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 12/3112:53 pmBOI - LIH
1 stop10h 22mDelta
Mon 1/610:51 pmLIH - BOI
1 stop11h 54mDelta
Deal found 12/22$1,042
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Mon 12/237:00 amIDA - LIH
1 stop13h 07mUnited Airlines
Fri 12/278:35 pmLIH - IDA
1 stop10h 16mUnited Airlines
Deal found 12/20$1,060
This Alaska Airlines deal was found by Cheapflights users on 12/20. 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.
Fri 12/277:00 amBOI - LIH
1 stop18h 52mAlaska Airlines
Wed 1/111:52 pmLIH - BOI
1 stop19h 43mAlaska Airlines
Deal found 12/20$1,066
This Delta deal was found by Cheapflights users on 12/20. 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.
Tue 12/241:10 pmIDA - LIH
2 stops34h 05mDelta
Thu 12/269:40 pmLIH - IDA
2 stops11h 46mDelta
Deal found 12/20$1,086
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:30 amBOI - LIH
1 stop9h 35mMultiple Airlines
Mon 1/611:28 pmLIH - BOI
1 stop9h 51mMultiple Airlines
Deal found 12/21$1,131
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2110:49 amIDA - LIH
2 stops28h 57mMultiple Airlines
Tue 12/242:30 pmLIH - IDA
2 stops19h 36mMultiple Airlines
Deal found 12/21$1,220
This United deal was found by Cheapflights users on 12/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:25 pmBOI - LIH
1 stop30h 19mUnited Airlines
Sat 1/411:59 pmLIH - BOI
1 stop8h 33mUnited Airlines
Deal found 12/21$1,384

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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 2/20

6:50 am-1:55 pm

1 stop10h 05m

Lihue

Thu 2/27

10:20 am-10:20 pm

1 stop9h 00m

$320

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 2/27

9:25 am-6:22 pm

1 stop11h 57m

Lihue

Wed 3/5

10:51 pm-9:54 am

1 stop8h 03m

$322

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Tue 4/22

7:00 am-12:55 pm

1 stop8h 55m

Lihue

Tue 4/29

11:39 am-11:59 pm

1 stop9h 20m

$336

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 2/3

9:15 am-8:09 pm

2 stops12h 54m

Lihue

Tue 2/11

10:51 pm-8:35 am

1 stop7h 44m

$341

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Mon 2/3

6:32 am-7:46 pm

2 stops15h 14m

Lihue

Tue 2/11

9:30 pm-1:49 pm

2 stops14h 19m

$346

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Thu 1/23

1:46 pm-12:00 pm

1 stop25h 14m

Lihue

Mon 1/27

11:28 pm-12:19 pm

1 stop9h 51m

$351

HaileyLihue

SUN - LIH

SUNLIH

Hailey Sun Valley-Friedman

Sat 1/18

6:57 pm-4:28 pm

2 stops24h 31m

Lihue

Thu 1/23

11:28 pm-9:40 am

1 stop31h 12m

$480

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Mon 5/12

6:00 am-9:32 pm

1 stop19h 32m

Lihue

Tue 5/20

10:10 pm-10:38 pm

1 stop20h 28m

$495

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Fri 5/23

5:06 am-10:50 am

1 stop8h 44m

Lihue

Fri 5/30

11:50 am-11:07 pm

1 stop8h 17m

$524

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Sat 2/8

4:20 pm-5:04 pm

1 stop27h 44m

Lihue

Sat 2/15

10:15 pm-9:40 am

1 stop32h 25m

$853

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 27 results
1
2
3

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 $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 December 22, 2024.

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 December 22, 2024.
To help decide which airline to fly from Idaho to Kaua'i, see what other customers have to say about Alaska Airlines, American Airlines and United Airlines. 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.
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,804 reviews
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,537 reviews
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,594 reviews
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.9
Good
2,297 reviews
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
9,028 reviews
8.1
Very good
4,804 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 ($185), Southwest ($263), and Delta ($346).

  • 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

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.

Alternative routes for Idaho to Kaua'i

See prices for flight routes from nearby airports that may be better suited for you.

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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$321Average$957FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$367Average$634FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$376Average$922FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$450Average$591FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.