What airlines fly to Kaua'i?

Alaska Airlines, Southwest and Delta 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 52% 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.

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

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

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

On average, it takes 2h 17m to fly from Idaho to Kaua'i if you fly out of Boise (the most popular airport in Idaho) and into Los Angeles (the most popular airport in Kaua'i). If you’re flying out of Hailey and into Los Angeles, then the flight time is around 2h 34m.

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 May 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.

$219 Cheap Flights from Idaho to Kaua'i in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

5:57 am - 11:08 am

BOI

LIH

9h 11m

1 stop

10:28 pm - 12:35 pm

LIH

BOI

10h 07m

1 stop

$453Multiple Airlines

Tue, Aug 11 - Tue, Aug 18

5:57 am - 11:08 am

BOI

LIH

9h 11m

1 stop

9:35 pm - 9:52 am

LIH

BOI

8h 17m

1 stop

$455Multiple Airlines

Sun, Aug 16 - Wed, Aug 26

1:27 pm - 7:23 pm

GEG

LIH

8h 56m

1 stop

9:35 pm - 11:01 am

LIH

GEG

10h 26m

1 stop

$458Alaska Airlines

Sun, Aug 23 - Thu, Sep 3

1:15 pm - 7:23 pm

BOI

LIH

10h 08m

1 stop

6:00 am - 11:00 pm

LIH

BOI

13h 00m

2 stops

$458Multiple Airlines

Tue, Sep 1 - Wed, Sep 2

12:42 pm - 7:20 pm

BOI

LIH

10h 38m

1 stop

9:45 pm - 12:05 pm

LIH

BOI

10h 20m

1 stop

$459Delta

Sun, Sep 20 - Sat, Sep 26

4:21 pm - 9:25 pm

BOI

LIH

9h 04m

1 stop

6:00 am - 11:00 pm

LIH

BOI

13h 00m

2 stops

$460Multiple Airlines

Sun, Aug 16 - Wed, Aug 26

8:45 am - 5:12 pm

BOI

LIH

12h 27m

2 stops

9:45 pm - 12:05 pm

LIH

BOI

10h 20m

1 stop

$465Delta

Sun, Sep 20 - Sat, Sep 26

10:39 am - 7:04 pm

BOI

LIH

12h 25m

1 stop

9:55 pm - 11:15 am

LIH

BOI

9h 20m

1 stop

$468Delta

Wed, Jun 3 - Tue, Jun 9

1:27 pm - 7:23 pm

GEG

LIH

8h 56m

1 stop

3:42 pm - 1:22 pm

LIH

GEG

18h 40m

1 stop

$480Alaska Airlines

Sun, Aug 23 - Mon, Aug 31

1:36 pm - 8:14 pm

GEG

LIH

9h 38m

1 stop

10:31 pm - 11:39 am

LIH

GEG

10h 08m

1 stop

$486Alaska Airlines

Wed, Sep 30 - Wed, Oct 14

Delta flights from Idaho to Kaua'i

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

Delta

Sep 20

BOI12:42 pmBoise Air Term. Gowen Fld

10h 38m

1 stop

LIH7:20 pmLihue

Sep 26

LIH9:45 pmLihue

10h 20m

1 stop

BOI12:05 pmBoise Air Term. Gowen Fld

$459

Delta

Sep 20

BOI8:45 amBoise Air Term. Gowen Fld

12h 27m

2 stops

LIH5:12 pmLihue

Sep 26

LIH9:45 pmLihue

10h 20m

1 stop

BOI12:05 pmBoise Air Term. Gowen Fld

$465

Delta

Jun 3

BOI10:39 amBoise Air Term. Gowen Fld

12h 25m

1 stop

LIH7:04 pmLihue

Jun 9

LIH9:55 pmLihue

9h 20m

1 stop

BOI11:15 amBoise Air Term. Gowen Fld

$468

Alaska Airlines flights from Idaho to Kaua'i

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

Alaska Airlines

Aug 23

GEG1:27 pmSpokane

8h 56m

1 stop

LIH7:23 pmLihue

Sep 3

LIH9:35 pmLihue

10h 26m

1 stop

GEG11:01 amSpokane

$458

Alaska Airlines

Aug 23

GEG1:27 pmSpokane

8h 56m

1 stop

LIH7:23 pmLihue

Aug 31

LIH3:42 pmLihue

18h 40m

1 stop

GEG1:22 pmSpokane

$480

Alaska Airlines

Jul 27

BOI4:21 pmBoise Air Term. Gowen Fld

9h 04m

1 stop

LIH9:25 pmLihue

Aug 11

LIH10:28 pmLihue

10h 19m

1 stop

BOI12:47 pmBoise Air Term. Gowen Fld

$486

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 8/11

5:57 am-11:08 am

1 stop9h 11m

Lihue

Tue 8/18

10:28 pm-12:35 pm

1 stop10h 07m

$453

Quickest round-trip

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 8/16

5:57 am-11:08 am

1 stop9h 11m

Lihue

Wed 8/26

9:35 pm-9:52 am

1 stop8h 17m

$455

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Sun 8/23

1:27 pm-7:23 pm

1 stop8h 56m

Lihue

Thu 9/3

9:35 pm-11:01 am

1 stop10h 26m

$458

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Tue 9/1

1:15 pm-7:23 pm

1 stop10h 08m

Lihue

Wed 9/2

6:00 am-11:00 pm

2 stops13h 00m

$458

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 9/20

12:42 pm-7:20 pm

1 stop10h 38m

Lihue

Sat 9/26

9:45 pm-12:05 pm

1 stop10h 20m

$459

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 8/16

4:21 pm-9:25 pm

1 stop9h 04m

Lihue

Wed 8/26

6:00 am-11:00 pm

2 stops13h 00m

$460

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Sun 9/20

8:45 am-5:12 pm

2 stops12h 27m

Lihue

Sat 9/26

9:45 pm-12:05 pm

1 stop10h 20m

$465

BoiseLihue

BOI - LIH

BOILIH

Boise Air Term. Gowen Fld

Wed 6/3

10:39 am-7:04 pm

1 stop12h 25m

Lihue

Tue 6/9

9:55 pm-11:15 am

1 stop9h 20m

$468

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Sun 8/23

1:27 pm-7:23 pm

1 stop8h 56m

Lihue

Mon 8/31

3:42 pm-1:22 pm

1 stop18h 40m

$480

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Wed 9/30

1:36 pm-8:14 pm

1 stop9h 38m

Lihue

Wed 10/14

10:31 pm-11:39 am

1 stop10h 08m

$486

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, February 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 $163. The month of December is another great option to travel to Kaua'i, with average flight prices from Idaho averaging around $227.

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 $617 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

Fastest flight time	8h 35m
Direct flights	None

The fastest flight from Idaho to Kaua'i takes 8h 35m

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 5 operators available for flights from Idaho to Kaua'i as of May 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 16.15% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 14.72%, Embraer 175 at 12.98%, and Boeing 737 MAX 8 at 12.06%.

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
United Airlines	PriceFrom $227	Free Cancellation	Rating 7.4 9,736 reviews	Search United Airlines flights
Delta	PriceFrom $239	Free Cancellation	Rating 7.9 8,454 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $291	Free Cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $379	Free Cancellation	Rating 7.9 12,385 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $410	Free Cancellation	Rating 7.9 4,285 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.