What airlines fly to Kaua'i?

Delta, Alaska Airlines and Southwest are the top three most popular airlines that fly to Kaua'i from Idaho according to our data. Delta is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Kaua'i. Keep in mind that there are 5 different airlines that fly to Kaua'i on a routine basis, so you have a few additional options to choose from.

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

On average, it takes 16h 30m to fly from Idaho to Kaua'i if you fly out of Boise (the most popular airport in Idaho) and into Incheon Intl Airport (the most popular airport in Kaua'i). If you’re flying out of Idaho Falls and into Incheon Intl Airport, then the flight time is around 18h 20m.

What is the cheapest airline that flies from Idaho to Kaua'i?

Delta, Alaska Airlines, and Hawaiian Airlines are the most popular carriers operating from Idaho to Kaua'i

When did momondo last update prices for flights from Idaho to Kaua'i?

Prices for flights from Idaho to Kaua'i are updated daily.

How many operators does momondo search for flights from Idaho to Kaua'i?

There are 5 operators available for flights from Idaho to Kaua'i as of August 2025.

How old do you have to be to fly from Idaho to Kaua'i?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Kaua'i.

What documentation or ID do you need to fly to Kaua'i?

The travel and health documents you'll need for your trip to Kaua'i may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kaua'i. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$190 Cheap Flights from Idaho to Kaua'i in 2025

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Find the cheapest flights from Idaho to Kaua'i

Round-trip

One-way

Last minute

Cheap round-trip flights

2:05 pm - 6:59 pmBOI-LIH

8h 54m1 stop

9:40 pm - 1:20 pmLIH-BOI

11h 40m1 stop

$379Delta

Find Deal

lun., sep. 29 - mar., oct. 7

9:00 am - 9:30 pmBOI-LIH

16h 30m1 stop

6:49 pm - 1:35 pmLIH-BOI

14h 46m2 stops

$385Alaska Airlines

Find Deal

lun., sep. 29 - mar., oct. 7

6:00 am - 1:56 pmBOI-LIH

11h 56m2 stops

6:49 pm - 1:35 pmLIH-BOI

14h 46m2 stops

$390Alaska Airlines

Find Deal

lun., sep. 29 - mar., oct. 7

2:20 pm - 10:25 pmBOI-LIH

11h 05m1 stop

1:20 pm - 11:59 pmLIH-BOI

7h 39m1 stop

$500Hawaiian Airlines

Find Deal

vie., nov. 14 - mar., nov. 25

3:08 pm - 9:30 pmGEG-LIH

9h 22m1 stop

10:30 pm - 11:30 amLIH-GEG

10h 00m1 stop

$516Hawaiian Airlines

Find Deal

lun., sep. 8 - lun., sep. 15

5:45 am - 4:00 pmGEG-LIH

13h 15m2 stops

6:15 am - 11:40 pmLIH-GEG

14h 25m2 stops

$565Southwest

Find Deal

lun., sep. 8 - lun., sep. 15

3:25 pm - 10:15 pmGEG-LIH

8h 50m1 stop

11:50 pm - 8:59 pmLIH-GEG

19h 09m2 stops

$926

Find Deal

sáb., ene. 10 - mié., feb. 4

4:00 pm - 12:03 pmGEG-LIH

22h 03m1 stop

11:50 pm - 8:59 pmLIH-GEG

19h 09m2 stops

$966

Find Deal

jue., ene. 15 - mié., feb. 4

5:35 am - 3:07 pmIDA-LIH

12h 32m1 stop

10:10 pm - 10:03 pmLIH-IDA

20h 53m1 stop

$1,000American Airlines

Find Deal

sáb., ene. 31 - sáb., feb. 7

6:32 am - 3:54 pmGEG-LIH

11h 22m1 stop

10:44 pm - 11:09 pmLIH-GEG

22h 25m1 stop

$1,156American Airlines

Find Deal

jue., nov. 20 - sáb., nov. 29

Hawaiian Airlines flights from Idaho to Kaua'i

Our best Hawaiian Airlines deals on Idaho to Kaua'i flight tickets

Hawaiian Airlines

Nov 14

BOI2:20 pmBoise Air Term. Gowen Fld

11h 05m

1 stop

LIH10:25 pmLihue

Nov 25

LIH1:20 pmLihue

7h 39m

1 stop

BOI11:59 pmBoise Air Term. Gowen Fld

$500

Find similar

Hawaiian Airlines

Sep 8

GEG3:08 pmSpokane

9h 22m

1 stop

LIH9:30 pmLihue

Sep 15

LIH10:30 pmLihue

10h 00m

1 stop

GEG11:30 amSpokane

$516

Find similar

Hawaiian Airlines

Aug 27

BOI2:28 pmBoise Air Term. Gowen Fld

11h 02m

1 stop

LIH9:30 pmLihue

Sep 5

LIH10:30 pmLihue

8h 07m

1 stop

BOI10:37 amBoise Air Term. Gowen Fld

$564

Find similar

Southwest flights from Idaho to Kaua'i

Our best Southwest deals on Idaho to Kaua'i flight tickets

Southwest

Sep 8

GEG5:45 amSpokane

13h 15m

2 stops

LIH4:00 pmLihue

Sep 15

LIH6:15 amLihue

14h 25m

2 stops

GEG11:40 pmSpokane

$565

Find similar

Southwest

Aug 23

GEG10:10 amSpokane

8h 50m

1 stop

LIH4:00 pmLihue

Aug 30

LIH10:00 amLihue

9h 30m

1 stop

GEG10:30 pmSpokane

$723

Find similar

Southwest

Aug 23

GEG6:25 amSpokane

17h 55m

2 stops

LIH9:20 pmLihue

Aug 30

LIH6:15 amLihue

13h 15m

2 stops

GEG10:30 pmSpokane

$739

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

lun. 9/29

2:05 pm-6:59 pm

1 stop8h 54m

Lihue

mar. 10/7

9:40 pm-1:20 pm

1 stop11h 40m

$379

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

lun. 9/29

9:00 am-9:30 pm

1 stop16h 30m

Lihue

mar. 10/7

6:49 pm-1:35 pm

2 stops14h 46m

$385

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

lun. 9/29

6:00 am-1:56 pm

2 stops11h 56m

Lihue

mar. 10/7

6:49 pm-1:35 pm

2 stops14h 46m

$390

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

vie. 11/14

2:20 pm-10:25 pm

1 stop11h 05m

Lihue

mar. 11/25

1:20 pm-11:59 pm

1 stop7h 39m

$500

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

lun. 9/8

3:08 pm-9:30 pm

1 stop9h 22m

Lihue

lun. 9/15

10:30 pm-11:30 am

1 stop10h 00m

$516

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

lun. 9/8

5:45 am-4:00 pm

2 stops13h 15m

Lihue

lun. 9/15

6:15 am-11:40 pm

2 stops14h 25m

$565

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

sáb. 1/10

3:25 pm-10:15 pm

1 stop8h 50m

Lihue

mié. 2/4

11:50 pm-8:59 pm

2 stops19h 09m

$926

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

jue. 1/15

4:00 pm-12:03 pm

1 stop22h 03m

Lihue

mié. 2/4

11:50 pm-8:59 pm

2 stops19h 09m

$966

Idaho FallsLihue

IDA - LIH

IDALIH

Idaho Falls Fanning Field

sáb. 1/31

5:35 am-3:07 pm

1 stop12h 32m

Lihue

sáb. 2/7

10:10 pm-10:03 pm

1 stop20h 53m

$1,000

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

jue. 11/20

6:32 am-3:54 pm

1 stop11h 22m

Lihue

sáb. 11/29

10:44 pm-11:09 pm

1 stop22h 25m

$1,156

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Kaua'i

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Kaua'i?

In general, August is the cheapest month to fly from Idaho to Kaua'i. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $405. The month of January is another great option to travel to Kaua'i, with average flight prices from Idaho averaging around $453.

What is the cheapest day to depart on your flight to Kaua'i?

According to our data, Wednesday is the cheapest day to fly to Kaua'i from Idaho. The lowest ticket price found for a Wednesday departure recently was $539. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $619. These prices are subject to change though, so be sure to set up a Price Alert for flights to Kaua'i.

What is the cheapest time of day to depart on your flight to Kaua'i?

The cheapest time of day to fly to Kaua'i is in the evening when flights can be purchased for as low as $376. In contrast, the most expensive time of day to depart to Kaua'i is in the morning when prices are around $620.

How far in advance should I book a flight to Kaua'i?

You are more likely to see cheaper flights to Kaua'i from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Kaua'i for around $517 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kaua'i from Idaho for as low as $442 on momondo.

Can stopping save me money on Idaho to Kaua'i flights?

No. A direct flight is the cheapest option for a flight between Idaho to Kaua'i.

Cheap Idaho to Kaua'i flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Kaua'i

Best Price Found	$190
Fastest flight time	8h 36m
Direct flights	None
Airports in Kaua'i	1 airport

The best one-way flight to Kaua'i from Idaho in the past 72 hours is $190. The best round-trip flight deal from Idaho to Kaua'i found on momondo in the last 72 hours is $379.

The fastest flight from Idaho to Kaua'i takes 8h 36m

There are no direct flights from Idaho to Kaua'i. Popular non-direct routes for this connection are Boise Air Term. Gowen Fld Airport - Lihue Airport and Spokane Airport - Lihue Airport.

There is 1 airport near Kaua'i: Lihue (LIH)

Search flight deals

When did momondo last update prices for flights from Idaho to Kaua'i?
Prices for flights from Idaho to Kaua'i are updated daily.
How many operators does momondo search for flights from Idaho to Kaua'i?
There are 5 operators available for flights from Idaho to Kaua'i as of August 2025.
How old do you have to be to fly from Idaho to Kaua'i?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Kaua'i.
What documentation or ID do you need to fly to Kaua'i?
The travel and health documents you'll need for your trip to Kaua'i may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kaua'i. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Idaho to Kaua'i?
momondo data reveals that the most frequently booked plane model on the route from Idaho to Kaua'i is Embraer 175, representing 30.92% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 11.64%, Boeing 737-800 Passenger/BBJ2 (winglets) at 7.56%, and Airbus A320-100/200 at 6.73%.

Best airlines flying from Idaho to Kaua'i

Compare and see reviews for airlines that fly from Idaho to Kaua'i with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $280	Free Cancellation	Rating 7.8 2,664 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $321	Free Cancellation	Rating 8.0 7,986 reviews	Search Delta flights
United Airlines	PriceFrom $345	Free Cancellation	Rating 7.4 8,919 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $381	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $450	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Kaua'i?

Finding the right flight to Kaua'i from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kaua'i quick and easy, saving you time and money.

Can I find flights from Idaho to Kaua'i with flexible booking policies on momondo?

Yes. All flights to Kaua'i from Idaho on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Idaho to Kaua'i?

momondo helps you find the best flight between Idaho and Kaua'i by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Idaho to Kaua'i right now. Can momondo alert me if prices change?

Price alerts on flights to Kaua'i from Idaho are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.