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Kaua'i

$235+ Cheap flights from Idaho Falls (IDA) 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LIH
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Idaho Falls to Kaua'i

Cheapest flights from Idaho Falls to Kaua'i
Explore the most affordable flight options available from Idaho Falls to Kaua'i. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 2/238:00 am
IDA
-
LIH
2 stops11h 57m
Multiple Airlines
Wed 2/253:09 pm
LIH
-
IDA
2 stops29h 27m
Multiple Airlines
Deal found 2/2$525
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:59 pm
IDA
-
LIH
2 stops19h 46m
Multiple Airlines
Tue 3/3111:05 am
LIH
-
IDA
2 stops25h 14m
Multiple Airlines
Deal found 2/3$592
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:59 pm
IDA
-
LIH
2 stops22h 13m
Alaska Airlines
Tue 4/2110:29 pm
LIH
-
IDA
1 stop13h 00m
Alaska Airlines
Deal found 2/3$639
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:00 am
IDA
-
LIH
1 stop12h 59m
United Airlines
Mon 12/146:15 pm
LIH
-
IDA
2 stops12h 13m
United Airlines
Deal found 2/2$648
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 3/245:59 pm
IDA
-
LIH
1 stop31h 30m
Alaska Airlines
Tue 3/3110:29 pm
LIH
-
IDA
1 stop13h 50m
Alaska Airlines
Deal found 2/3$653
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:59 pm
IDA
-
LIH
2 stops22h 13m
Multiple Airlines
Tue 4/215:00 pm
LIH
-
IDA
2 stops18h 29m
Multiple Airlines
Deal found 2/3$664

Find flight deals from Idaho Falls to Kaua'i

Keep the following information in mind while searching for Idaho Falls to Kaua'i flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$525
(Alaska Airlines)

One-way from

$235
(Expedia)

Popular in

June

Cheapest in

October

Average price

$657
Provider with most accurate pricing for Idaho Falls Fanning Field-Lihue flight deals.
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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Lihue flights.
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From Idaho Falls Fanning Field to Kaua'i
Search Deals
One-way flight from Idaho Falls Fanning Field to Kaua'i
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 4, 2026.
Use the filters below to find and compare flights from Idaho Falls to Kaua'i that are best for you.

Fly from

Idaho Falls

Fly to

Kaua'i

Route

Depart

Return

Price

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Mon 2/23

8:00 am-4:57 pm

2 stops11h 57m

Lihue

Wed 2/25

3:09 pm-11:36 pm

2 stops29h 27m

$525

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Tue 3/24

5:59 pm-9:29 pm

1 stop31h 30m

Lihue

Tue 3/31

11:05 am-4:19 pm

2 stops25h 14m

$609

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Sun 4/12

4:59 pm-11:12 am

2 stops22h 13m

Lihue

Tue 4/21

10:29 pm-3:29 pm

1 stop13h 00m

$639

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Tue 3/24

5:59 pm-9:29 pm

1 stop31h 30m

Lihue

Tue 3/31

10:29 pm-4:19 pm

1 stop13h 50m

$653

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Mon 3/2

5:20 pm-1:54 pm

2 stops23h 34m

$235

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

Mon 3/2

5:20 pm-3:50 pm

1 stop25h 30m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Best time to book a flight from Idaho Falls to Kaua'i

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

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

Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Kaua'i (average of $342). Flying from Idaho Falls to Kaua'i in September is currently the most expensive (average of $867). 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.

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 4, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines from Idaho Falls to Kaua'i to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,839 reviews
Alaska Airlines
8.0
Very good
11,839 reviews

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls 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 Idaho Falls to Kaua'i?

    If you book a flight to Kaua'i from Idaho Falls, you will be flying from Fanning Field, which is the city’s only airport. Idaho Falls Fanning Field (IDA) is located 3.8 mi from the center of Idaho Falls.

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Idaho Falls to Kaua'i (average of $342). Flying from Idaho Falls to Kaua'i in September is currently the most expensive (average of $867). 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 airline flying from Idaho Falls to Kaua'i

Discover the top airline that operate flights from Idaho Falls 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 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$609Average$707FlexibilityNo cancel feeOn-time75%

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