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

On average, it takes 11h 25m 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 15h 40m.

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

As of August 2025, 69 flights take off from State of Washington and land in Kaua'i each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.

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

Southwest, United Airlines, and Delta 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 day?

As of August 2025, there are 9 flights per day flying from State of Washington to Kaua'i. The most common time of day flights depart is 6:00PM, with 48% of flights taking off in the evening.

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 50% 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.

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 August 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.

$139 Cheap Flights from Washington to Kaua'i in 2025

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Find the cheapest flights from Washington to Kaua'i

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:10 am - 4:00 pmSEA-LIH

8h 50m1 stop

10:00 am - 11:10 pmLIH-SEA

11h 10m1 stop

$277Southwest

Find Deal

mar., oct. 28 - jue., nov. 6

11:14 am - 7:03 pmPDX-LIH

10h 49m1 stop

8:28 pm - 9:12 amLIH-PDX

9h 44m1 stop

$277Delta

Find Deal

jue., sep. 4 - mar., sep. 9

7:15 am - 11:55 amPDX-LIH

6h 40mnonstop

12:55 pm - 8:37 pmLIH-PDX

5h 42mnonstop

$278Alaska Airlines

Find Deal

mar., dic. 9 - mar., dic. 16

10:35 am - 5:22 pmPDX-LIH

9h 47m1 stop

5:35 pm - 5:34 amLIH-PDX

9h 59m1 stop

$279Hawaiian Airlines

Find Deal

mar., oct. 28 - mar., nov. 4

7:15 am - 11:55 amPDX-LIH

6h 40mnonstop

1:05 pm - 11:19 pmLIH-PDX

8h 14m1 stop

$288Alaska Airlines

Find Deal

mar., dic. 9 - mié., dic. 17

10:55 am - 5:59 pmPDX-LIH

9h 04m1 stop

12:55 pm - 8:37 pmLIH-PDX

5h 42mnonstop

$303Hawaiian Airlines

Find Deal

mar., dic. 9 - lun., dic. 15

6:30 am - 2:30 pmSEA-LIH

11h 00m1 stop

10:44 pm - 2:08 pmLIH-SEA

13h 24m1 stop

$307American Airlines

Find Deal

mar., oct. 28 - mar., nov. 4

2:29 pm - 7:58 pmSEA-LIH

8h 29m1 stop

12:50 pm - 12:59 amLIH-SEA

9h 09m1 stop

$320United Airlines

Find Deal

lun., sep. 22 - jue., sep. 25

6:33 pm - 1:33 pmSEA-LIH

21h 00m1 stop

10:14 pm - 10:45 amLIH-SEA

10h 31m1 stop

$333American Airlines

Find Deal

mar., dic. 2 - mar., dic. 16

1:44 pm - 7:55 pmPDX-LIH

9h 11m1 stop

12:50 pm - 12:28 amLIH-PDX

8h 38m1 stop

$356United Airlines

Find Deal

dom., sep. 28 - jue., oct. 2

Delta flights from State of Washington to Kaua'i

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

Delta

Sep 4

PDX11:14 amPortland

10h 49m

1 stop

LIH7:03 pmLihue

Sep 9

LIH8:28 pmLihue

9h 44m

1 stop

PDX9:12 amPortland

$277

Find similar

Delta

Sep 11

PDX7:15 amPortland

13h 06m

2 stops

LIH5:21 pmLihue

Sep 18

LIH9:40 pmLihue

7h 57m

1 stop

PDX8:37 amPortland

$283

Find similar

Delta

Sep 2

PDX11:14 amPortland

10h 49m

1 stop

LIH7:03 pmLihue

Sep 5

LIH9:40 pmLihue

7h 35m

1 stop

PDX8:15 amPortland

$292

Find similar

Alaska Airlines flights from State of Washington to Kaua'i

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

Alaska Airlines

Dec 9

PDX7:15 amPortland

6h 40m

LIH11:55 amLihue

Dec 16

LIH12:55 pmLihue

5h 42m

PDX8:37 pmPortland

$278

Find similar

Alaska Airlines

Dec 9

PDX7:15 amPortland

6h 40m

LIH11:55 amLihue

Dec 17

LIH1:05 pmLihue

8h 14m

1 stop

PDX11:19 pmPortland

$288

Find similar

Alaska Airlines

Dec 10

PDX6:05 pmPortland

19h 16m

1 stop

LIH11:21 amLihue

Dec 17

LIH1:05 pmLihue

8h 14m

1 stop

PDX11:19 pmPortland

$293

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

mar. 10/28

10:10 am-4:00 pm

1 stop8h 50m

Lihue

jue. 11/6

10:00 am-11:10 pm

1 stop11h 10m

$277

PortlandLihue

PDX - LIH

PDXLIH

Portland

jue. 9/4

11:14 am-7:03 pm

1 stop10h 49m

Lihue

mar. 9/9

8:28 pm-9:12 am

1 stop9h 44m

$277

PortlandLihue

PDX - LIH

PDXLIH

Portland

mar. 12/9

7:15 am-11:55 am

Nonstop6h 40m

Lihue

mar. 12/16

12:55 pm-8:37 pm

Nonstop5h 42m

$278

PortlandLihue

PDX - LIH

PDXLIH

Portland

mar. 10/28

10:35 am-5:22 pm

1 stop9h 47m

Lihue

mar. 11/4

5:35 pm-5:34 am

1 stop9h 59m

$279

PortlandLihue

PDX - LIH

PDXLIH

Portland

mar. 12/9

7:15 am-11:55 am

Nonstop6h 40m

Lihue

mié. 12/17

1:05 pm-11:19 pm

1 stop8h 14m

$288

PortlandLihue

PDX - LIH

PDXLIH

Portland

mar. 12/9

10:55 am-5:59 pm

1 stop9h 04m

Lihue

lun. 12/15

12:55 pm-8:37 pm

Nonstop5h 42m

$303

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

mar. 10/28

6:30 am-2:30 pm

1 stop11h 00m

Lihue

mar. 11/4

10:44 pm-2:08 pm

1 stop13h 24m

$307

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

lun. 9/22

2:29 pm-7:58 pm

1 stop8h 29m

Lihue

jue. 9/25

12:50 pm-12:59 am

1 stop9h 09m

$320

SeattleLihue

SEA - LIH

SEALIH

Seattle/Tacoma Intl

mar. 12/2

6:33 pm-1:33 pm

1 stop21h 00m

Lihue

mar. 12/16

10:14 pm-10:45 am

1 stop10h 31m

$333

PortlandLihue

PDX - LIH

PDXLIH

Portland

dom. 9/28

1:44 pm-7:55 pm

1 stop9h 11m

Lihue

jue. 10/2

12:50 pm-12:28 am

1 stop8h 38m

$356

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 $392. The month of October is another great option to travel to Kaua'i, with average flight prices from State of Washington averaging around $464.

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 $533. 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 $696. 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 $636.

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 $570 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 $444 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	$139
Fastest flight time	6h 04m
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 $139. The best round-trip flight deal from State of Washington to Kaua'i found on momondo in the last 72 hours is $277.

The fastest flight from State of Washington to Kaua'i takes 6h 04m

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

There is 1 airport near Kaua'i: 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 August 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 14.23% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 13.84%, Boeing 737 MAX 9 at 13.56%, and Airbus A321neo at 9.00%.

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
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 8,920 reviews	Search United Airlines flights
Southwest	PriceFrom $249	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
American Airlines	PriceFrom $275	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $281	Free Cancellation	Rating 8.0 7,979 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $293	Free Cancellation	Rating 7.8 2,655 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $348	Free Cancellation	Rating 8.0 10,000 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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Popular cities in Kaua'i

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Flights to San Franciscofrom $59

Flights to Washington, D.C.from $58

Flights to Bostonfrom $76

Flights to Atlantafrom $48

Flights to Dallasfrom $57

Flights to Seattlefrom $84

Cheap flights from Washington to Kaua'i from $139

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 11/10. 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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Delta flights from State of Washington to Kaua'i

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

Alaska Airlines flights from State of Washington to Kaua'i

Our best Alaska Airlines 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

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

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 $636.

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?

Southwest, United Airlines, and Delta 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 August 2025, there are 9 flights per day flying from State of Washington to Kaua'i. The most common time of day flights depart is 6:00PM, with 48% of flights taking off in the evening.

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

As of August 2025, 69 flights take off from State of Washington and land in Kaua'i each week. The most common flight departure day for this route is Wed, 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