What airlines fly to Kaua'i?

Alaska Airlines, Delta and Southwest are the top three most popular airlines that fly to Kaua'i from Idaho according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Kaua'i. Keep in mind that there are 4 different airlines that fly to Kaua'i on a routine basis, so you have a few additional options to choose from.

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

Delta, Southwest, and United 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 4 operators available for flights from Idaho to Kaua'i as of August 2026.

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.

$202 Cheap Flights from Idaho to Kaua'i in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho to Kaua'i

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:20 am - 1:15 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

9h 55m1 stop Las Vegas Harry Reid Intl

9:05 pm - 10:45 amLIH Lihue-BOI Boise Air Term. Gowen Fld

10h 40m1 stop Las Vegas Harry Reid Intl

$404Southwest

Tue, Nov 10 - Wed, Nov 18

10:30 am - 4:15 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

8h 45m1 stop Oakland

9:05 pm - 10:45 amLIH Lihue-BOI Boise Air Term. Gowen Fld

10h 40m1 stop Las Vegas Harry Reid Intl

$404Southwest

Mon, Nov 9 - Wed, Nov 18

10:34 am - 7:19 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

12h 45m1 stop Seattle/Tacoma Intl

9:53 pm - 11:27 amLIH Lihue-BOI Boise Air Term. Gowen Fld

9h 34m1 stop Seattle/Tacoma Intl

$404Delta

Tue, Oct 6 - Tue, Oct 13

12:08 pm - 7:19 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

11h 11m1 stop Seattle/Tacoma Intl

9:53 pm - 9:54 amLIH Lihue-BOI Boise Air Term. Gowen Fld

8h 01m1 stop Seattle/Tacoma Intl

$404Delta

Tue, Oct 6 - Tue, Oct 13

1:53 pm - 10:28 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

11h 35m1 stop Seattle/Tacoma Intl

11:29 pm - 12:25 pmLIH Lihue-BOI Boise Air Term. Gowen Fld

9h 56m1 stop Seattle/Tacoma Intl

$404Alaska Airlines

Sun, Nov 8 - Tue, Nov 17

1:53 pm - 10:28 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

11h 35m1 stop Seattle/Tacoma Intl

11:29 pm - 12:25 pmLIH Lihue-BOI Boise Air Term. Gowen Fld

9h 56m1 stop Seattle/Tacoma Intl

$404Alaska Airlines

Mon, Nov 16 - Tue, Nov 17

8:00 am - 4:10 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

11h 10m1 stop Phoenix Sky Harbor Intl

10:35 pm - 1:26 pmLIH Lihue-BOI Boise Air Term. Gowen Fld

11h 51m1 stop Phoenix Sky Harbor Intl

$404American Airlines

Wed, Nov 11 - Wed, Nov 18

5:43 am - 12:09 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

9h 26m1 stop Portland

11:29 pm - 12:25 pmLIH Lihue-BOI Boise Air Term. Gowen Fld

9h 56m1 stop Seattle/Tacoma Intl

$404Multiple Airlines

Mon, Nov 16 - Tue, Nov 17

1:10 pm - 10:30 pmGEG Spokane-LIH Lihue

11h 20m1 stop San Francisco

11:59 pm - 10:38 amLIH Lihue-GEG Spokane

8h 39m1 stop San Francisco

$434United Airlines

Thu, Nov 12 - Thu, Nov 19

6:20 am - 12:31 pmBOI Boise Air Term. Gowen Fld-LIH Lihue

9h 11m1 stop San Francisco

11:59 pm - 11:19 amLIH Lihue-BOI Boise Air Term. Gowen Fld

8h 20m1 stop San Francisco

$574United Airlines

Thu, Nov 12 - Sat, Nov 21

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Alaska Airlines flights from Idaho to Kaua'i

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

Alaska Airlines

Oct 12

BOI4:18 pmBoise Air Term. Gowen Fld

9h 09m

1 stop

LIH9:27 pmLihue

Oct 12

LIH10:31 pmLihue

10h 04m

1 stop

BOI12:35 pmBoise Air Term. Gowen Fld

$429

Alaska Airlines

Nov 12

BOI1:53 pmBoise Air Term. Gowen Fld

11h 35m

1 stop

LIH10:28 pmLihue

Nov 17

LIH11:29 pmLihue

9h 56m

1 stop

BOI12:25 pmBoise Air Term. Gowen Fld

$434

Alaska Airlines

Sep 28

GEG2:02 pmSpokane

22h 40m

1 stop

LIH9:42 amLihue

Oct 6

LIH3:45 pmLihue

20h 37m

1 stop

GEG3:22 pmSpokane

$466

Southwest flights from Idaho to Kaua'i

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

Southwest

Nov 30

GEG5:30 amSpokane

14h 35m

2 stops

LIH6:05 pmLihue

Dec 10

LIH9:05 pmLihue

12h 25m

1 stop

GEG11:30 amSpokane

$423

Southwest

Nov 10

GEG5:35 amSpokane

10h 50m

2 stops

LIH2:25 pmLihue

Nov 17

LIH9:05 pmLihue

13h 45m

1 stop

GEG12:50 pmSpokane

$437

Southwest

Nov 12

GEG5:00 amSpokane

11h 25m

2 stops

LIH2:25 pmLihue

Nov 19

LIH9:05 pmLihue

12h 25m

1 stop

GEG11:30 amSpokane

$440

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Tue 11/10

6:20 am-1:15 pm

1 stop9h 55m

Lihue

Wed 11/18

9:05 pm-10:45 am

1 stop10h 40m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Mon 11/9

10:30 am-4:15 pm

1 stop8h 45m

Lihue

Wed 11/18

9:05 pm-10:45 am

1 stop10h 40m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Tue 10/6

10:34 am-7:19 pm

1 stop12h 45m

Lihue

Tue 10/13

9:53 pm-11:27 am

1 stop9h 34m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Tue 10/6

12:08 pm-7:19 pm

1 stop11h 11m

Lihue

Tue 10/13

9:53 pm-9:54 am

1 stop8h 01m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Sun 11/8

1:53 pm-10:28 pm

1 stop11h 35m

Lihue

Tue 11/17

11:29 pm-12:25 pm

1 stop9h 56m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Mon 11/16

1:53 pm-10:28 pm

1 stop11h 35m

Lihue

Tue 11/17

11:29 pm-12:25 pm

1 stop9h 56m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Wed 11/11

8:00 am-4:10 pm

1 stop11h 10m

Lihue

Wed 11/18

10:35 pm-1:26 pm

1 stop11h 51m

$404

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Mon 11/16

5:43 am-12:09 pm

1 stop9h 26m

Lihue

Tue 11/17

11:29 pm-12:25 pm

1 stop9h 56m

$404

SpokaneLihue

GEG Spokane - LIH Lihue

GEGLIH

Spokane

Thu 11/12

1:10 pm-10:30 pm

1 stop11h 20m

Lihue

Thu 11/19

11:59 pm-10:38 am

1 stop8h 39m

$434

Quickest round-trip

BoiseLihue

BOI Boise Air Term. Gowen Fld - LIH Lihue

BOILIH

Boise Air Term. Gowen Fld

Thu 11/12

6:20 am-12:31 pm

1 stop9h 11m

Lihue

Sat 11/21

11:59 pm-11:19 am

1 stop8h 20m

$574

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

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

In general, January 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 $388. The month of February is another great option to travel to Kaua'i, with average flight prices from Idaho averaging around $487.

How far in advance should I book a flight from Idaho 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 $616 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 $366 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	$202
Fastest flight time	9h 09m
Direct flights	None

The best one-way flight to Kaua'i from Idaho in the past 72 hours is $202. The best round-trip flight deal from Idaho to Kaua'i found on momondo in the last 72 hours is $404.

The fastest flight from Idaho to Kaua'i takes 9h 09m

There are no direct flights from Idaho to Kaua'i. There are no popular flight routes from Idaho to Kaua'i.

Search flight deals

Frequently asked questions about flying 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 4 operators available for flights from Idaho to Kaua'i as of August 2026.
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 Boeing 737-800 Passenger/BBJ2 (winglets), representing 15.17% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 14.55%, Boeing 737 MAX 8 at 11.33%, and Boeing 737-800 at 10.56%.

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
Delta	PriceFrom $239	Free Cancellation	Rating 7.8 8,513 reviews	Search Delta flights
Alaska Airlines	PriceFrom $348	Free Cancellation	Rating 7.9 12,839 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $410	Free Cancellation	Rating 8.0 4,213 reviews	Search Southwest flights
United Airlines	PriceFrom $483	Free Cancellation	Rating 7.4 10,114 reviews	Search United Airlines 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.