How long is the flight from State of Washington to Kaua'i?

On average, it takes 11h 20m to fly from State of Washington to Kaua'i if you fly out of Seattle (the most popular airport in State of Washington) and into Incheon Intl Airport (the most popular airport in Kaua'i). If you’re flying out of Spokane and into Incheon Intl Airport, then the flight time is around 14h 10m.

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

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

How many flights depart from State of Washington to Kaua'i on average per week?

As of December 2025, 73 flights take off from State of Washington and land in Kaua'i each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.

What airlines fly to Kaua'i?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Kaua'i from State of Washington according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Kaua'i. Keep in mind that there are 6 different airlines that fly to Kaua'i on a routine basis, so you have a few additional options to choose from.

How many flights depart from State of Washington to Kaua'i on average per day?

As of December 2025, there are 10 flights per day flying from State of Washington to Kaua'i. The most common time of day flights depart is 3:00PM, with 79% of flights taking off in the afternoon.

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

Prices for flights from Washington to Kaua'i are refreshed on a daily basis.

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

The number of operators available for flights from Washington to Kaua'i is 6 as of December 2025.

How old do you have to be to fly from Washington 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 Washington to Kaua'i.

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

The travel and health documents required for your trip to Kaua'i can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kaua'i. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$128 Cheap Flights from Washington to Kaua'i in 2025/26

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Find the cheapest flights from Washington to Kaua'i

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 pm - 10:41 pm

SEA

LIH

6h 26mnonstop

10:20 pm - 6:11 am

LIH

SEA

5h 51mnonstop

$278Alaska Airlines

Wed, Feb 4 - Tue, Feb 10

3:45 pm - 10:23 pm

SEA

LIH

8h 38m1 stop

11:41 pm - 7:32 am

LIH

SEA

5h 51mnonstop

$282Multiple Airlines

Wed, Feb 4 - Wed, Feb 11

3:45 pm - 10:23 pm

SEA

LIH

8h 38m1 stop

10:20 pm - 6:11 am

LIH

SEA

5h 51mnonstop

$283Multiple Airlines

Mon, Feb 2 - Tue, Feb 10

6:00 am - 4:37 pm

SEA

LIH

12h 37m1 stop

10:10 pm - 10:55 am

LIH

SEA

10h 45m1 stop

$287American Airlines

Fri, Jan 9 - Thu, Jan 15

3:35 pm - 7:55 pm

SEA

LIH

6h 20mnonstop

9:31 pm - 12:57 pm

LIH

SEA

13h 26m1 stop

$288Delta

Sun, Jan 11 - Wed, Jan 21

6:00 am - 4:37 pm

SEA

LIH

12h 37m1 stop

11:00 pm - 7:22 pm

LIH

SEA

18h 22m1 stop

$293American Airlines

Fri, Jan 23 - Fri, Jan 30

6:00 am - 4:37 pm

SEA

LIH

12h 37m1 stop

11:00 pm - 11:59 pm

LIH

SEA

22h 59m1 stop

$296American Airlines

Tue, Feb 3 - Tue, Feb 10

1:20 pm - 7:55 pm

GEG

LIH

8h 35m1 stop

10:45 pm - 3:00 pm

LIH

GEG

14h 15m1 stop

$303Delta

Sun, Jan 11 - Wed, Jan 21

7:30 am - 5:47 pm

PDX

LIH

12h 17m2 stops

11:50 pm - 12:34 pm

LIH

PDX

10h 44m1 stop

$320United Airlines

Mon, Jan 5 - Sat, Jan 17

12:38 pm - 10:44 pm

GEG

LIH

12h 06m1 stop

11:13 pm - 11:47 am

LIH

GEG

9h 34m1 stop

$337United Airlines

Thu, Feb 26 - Tue, Mar 10

Hawaiian Airlines flights from State of Washington to Kaua'i

Our best Hawaiian Airlines deals on State of Washington to Kaua'i flight tickets

Hawaiian Airlines

Feb 8

SEA6:15 pmSeattle/Tacoma Intl

6h 26m

LIH10:41 pmLihue

Feb 15

LIH9:00 pmLihue

8h 44m

1 stop

SEA7:44 amSeattle/Tacoma Intl

$311

Find similar

Hawaiian Airlines

Feb 1

SEA6:15 pmSeattle/Tacoma Intl

6h 26m

LIH10:41 pmLihue

Feb 4

LIH9:00 pmLihue

8h 40m

1 stop

SEA7:40 amSeattle/Tacoma Intl

$349

Find similar

Delta flights from State of Washington to Kaua'i

Our best Delta deals on State of Washington to Kaua'i flight tickets

Delta

Jan 11

SEA3:35 pmSeattle/Tacoma Intl

6h 20m

LIH7:55 pmLihue

Jan 21

LIH9:31 pmLihue

13h 26m

1 stop

SEA12:57 pmSeattle/Tacoma Intl

$288

Find similar

Delta

Jan 11

GEG1:20 pmSpokane

8h 35m

1 stop

LIH7:55 pmLihue

Jan 21

LIH10:45 pmLihue

14h 15m

1 stop

GEG3:00 pmSpokane

$303

Find similar

Delta

Jan 20

GEG11:25 amSpokane

10h 30m

1 stop

LIH7:55 pmLihue

Jan 27

LIH10:45 pmLihue

10h 00m

1 stop

GEG10:45 amSpokane

$306

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 2/4

6:15 pm-10:41 pm

Nonstop6h 26m

Lihue

Tue 2/10

10:20 pm-6:11 am

Nonstop5h 51m

$278

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Wed 2/4

3:45 pm-10:23 pm

1 stop8h 38m

Lihue

Wed 2/11

11:41 pm-7:32 am

Nonstop5h 51m

$282

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Mon 2/2

3:45 pm-10:23 pm

1 stop8h 38m

Lihue

Tue 2/10

10:20 pm-6:11 am

Nonstop5h 51m

$283

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Fri 1/9

6:00 am-4:37 pm

1 stop12h 37m

Lihue

Thu 1/15

10:10 pm-10:55 am

1 stop10h 45m

$287

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Sun 1/11

3:35 pm-7:55 pm

Nonstop6h 20m

Lihue

Wed 1/21

9:31 pm-12:57 pm

1 stop13h 26m

$288

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Fri 1/23

6:00 am-4:37 pm

1 stop12h 37m

Lihue

Fri 1/30

11:00 pm-7:22 pm

1 stop18h 22m

$293

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

Tue 2/3

6:00 am-4:37 pm

1 stop12h 37m

Lihue

Tue 2/10

11:00 pm-11:59 pm

1 stop22h 59m

$296

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Sun 1/11

1:20 pm-7:55 pm

1 stop8h 35m

Lihue

Wed 1/21

10:45 pm-3:00 pm

1 stop14h 15m

$303

PortlandLihue

PDX - LIH

PDXLIH

Portland

Mon 1/5

7:30 am-5:47 pm

2 stops12h 17m

Lihue

Sat 1/17

11:50 pm-12:34 pm

1 stop10h 44m

$320

SpokaneLihue

GEG - LIH

GEGLIH

Spokane

Thu 2/26

12:38 pm-10:44 pm

1 stop12h 06m

Lihue

Tue 3/10

11:13 pm-11:47 am

1 stop9h 34m

$337

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 State of Washington 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, January is the cheapest month to fly from State of Washington to Kaua'i. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $416. The month of November is another great option to travel to Kaua'i, with average flight prices from State of Washington averaging around $508.

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

According to our data, Tuesday is the cheapest day to fly to Kaua'i from State of Washington. The lowest ticket price found for a Tuesday departure recently was $570. 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 Saturday because tickets tend to average around $706. 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 $273. In contrast, the most expensive time of day to depart to Kaua'i is in the morning when prices are around $669.

What is the cheapest Washington to Kaua'i flight route?

Fly from Seattle/Tacoma Intl to Lihue for the best Washington - Kaua'i flight prices

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

You are more likely to see cheaper flights to Kaua'i from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Kaua'i for around $586 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kaua'i from State of Washington for as low as $445 on momondo.

What cabin class options are available on Washington to Kaua'i flights?

There are 4 cabin classes available to choose from on Washington to Kaua'i flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Kaua'i flights?

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

Cheap State of Washington to Kaua'i flight deals and tips

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

Best Price Found	$379
Fastest flight time	6h 08m
Direct flights	Every day
Airports in Kaua'i	1 airport

The best one-way flight to Kaua'i from State of Washington in the past 72 hours is $379. The best round-trip flight deal from State of Washington to Kaua'i found on momondo in the last 72 hours is $378.

The fastest flight from State of Washington to Kaua'i takes 6h 08m

Direct flights go from State of Washington to Kaua'i every day.

There is 1 airport in Kaua'i. From State of Washington there are direct flights to Lihue (LIH).

Search flight deals

When did momondo last update prices for flights from Washington to Kaua'i?
Prices for flights from Washington to Kaua'i are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Kaua'i?
The number of operators available for flights from Washington to Kaua'i is 6 as of December 2025.
How old do you have to be to fly from Washington 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 Washington to Kaua'i.
What documentation or ID do you need to fly to Kaua'i?
The travel and health documents required for your trip to Kaua'i can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kaua'i. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from State of Washington to Kaua'i?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Kaua'i is Boeing 737-800 Passenger/BBJ2 (winglets), representing 14.74% of all bookings. The subsequent popular models are Airbus A321neo at 12.08%, Boeing 787-9 Dreamliner at 8.50%, and Boeing 737-900 at 8.47%.

Best airlines flying from State of Washington to Kaua'i

Compare and see reviews for airlines that fly from State of Washington to Kaua'i with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $249	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights
United Airlines	PriceFrom $257	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Delta	PriceFrom $271	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $296	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $305	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $321	Free Cancellation	Rating 8.0 11,452 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Kaua'i from Washington 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 Washington to Kaua'i with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Kaua'i from Washington with this policy.

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

momondo helps you find the best flight between Washington 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 Washington to Kaua'i right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Kaua'i flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Washington to Kaua'i from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Kaua'i departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Hawaiian Airlines flights from State of Washington to Kaua'i

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Our best Delta deals on State of Washington to Kaua'i flight tickets

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How to get the cheapest flight ticket from State of Washington to Kaua'i

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

What is the cheapest day to depart on your flight 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 $273. In contrast, the most expensive time of day to depart to Kaua'i is in the morning when prices are around $669.

What is the cheapest Washington to Kaua'i flight route?

Fly from Seattle/Tacoma Intl to Lihue for the best Washington - Kaua'i flight prices

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

What cabin class options are available on Washington to Kaua'i flights?

There are 4 cabin classes available to choose from on Washington to Kaua'i flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on State of Washington to Kaua'i flights?

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

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

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

What airlines fly to Kaua'i?

How many flights depart from State of Washington to Kaua'i on average per day?

As of December 2025, there are 10 flights per day flying from State of Washington to Kaua'i. The most common time of day flights depart is 3:00PM, with 79% of flights taking off in the afternoon.

How many flights depart from State of Washington to Kaua'i on average per week?

As of December 2025, 73 flights take off from State of Washington and land in Kaua'i each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.

How long is the flight from State of Washington to Kaua'i?

Cheap State of Washington to Kaua'i flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Kaua'i

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

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

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

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

What is the most popular plane model from State of Washington to Kaua'i?

Best airlines flying from State of Washington to Kaua'i

Compare and see reviews for airlines that fly from State of Washington to Kaua'i with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Kaua'i trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Kaua'i

Popular cities in Kaua'i

Popular flights according to clicks in the last 7 days on momondo