$149 Find Cheap Flights from Seattle to Kaua'i

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Kaua'i departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Kaua'i

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kaua'i, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Kaua'i, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Kaua'i

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lihue
Lihue1 stop$363
Lihue
Lihue1 stop$363

Book Cheap Seattle to Kaua'i Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Kaua'i that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Kaua'i

Thu, Oct 23 - Thu, Oct 30
Alaska Airlines Logo
2:00 pm - 8:31 pmSEA-LIH
9h 31m1 stop
Alaska Airlines Logo
10:23 pm - 7:13 amLIH-SEA
5h 50mnonstop
$363Alaska Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Alaska Airlines Logo
6:32 pm - 1:49 pmSEA-LIH
21h 17m1 stop
Alaska Airlines Logo
11:25 pm - 7:15 amLIH-SEA
5h 50mnonstop
$364Alaska Airlines
Find Deal
Fri, Nov 28 - Thu, Dec 11
Delta Logo
3:52 pm - 8:04 pmSEA-LIH
6h 12mnonstop
Delta Logo
10:45 pm - 6:41 amLIH-SEA
5h 56mnonstop
$368Delta
Find Deal
Sat, Nov 29 - Thu, Dec 11
Alaska Airlines Logo
6:10 pm - 10:32 pmSEA-LIH
6h 22mnonstop
Alaska Airlines Logo
6:54 pm - 5:15 amLIH-SEA
8h 21m1 stop
$373Alaska Airlines
Find Deal
Sun, Oct 12 - Thu, Oct 23
American Airlines Logo
2:42 pm - 12:15 pmSEA-LIH
24h 33m1 stop
American Airlines Logo
9:40 pm - 10:24 amLIH-SEA
9h 44m1 stop
$376American Airlines
Find Deal
Wed, Nov 5 - Thu, Nov 13
Delta Logo
3:53 pm - 8:05 pmSEA-LIH
6h 12mnonstop
Delta Logo
9:29 pm - 5:17 amLIH-SEA
5h 48mnonstop
$378Delta
Find Deal
Wed, Nov 5 - Thu, Nov 13
Hawaiian Airlines Logo
3:55 pm - 10:15 pmSEA-LIH
8h 20m1 stop
Hawaiian Airlines Logo
11:25 pm - 7:15 amLIH-SEA
5h 50mnonstop
$383Hawaiian Airlines
Find Deal
Fri, Nov 7 - Wed, Nov 12
Hawaiian Airlines Logo
3:55 pm - 10:15 pmSEA-LIH
8h 20m1 stop
Hawaiian Airlines Logo
11:25 pm - 7:15 amLIH-SEA
5h 50mnonstop
$393Hawaiian Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 22
United Airlines Logo
12:41 pm - 10:16 pmSEA-LIH
11h 35m2 stops
United Airlines Logo
2:31 pm - 12:59 amLIH-SEA
8h 28m1 stop
$402United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
American Airlines Logo
2:42 pm - 12:15 pmSEA-LIH
24h 33m1 stop
American Airlines Logo
9:40 pm - 9:00 pmLIH-SEA
20h 20m1 stop
$442American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Kaua'i flights

Get data-powered insights and trends into flights from Seattle to Kaua'i to help you find the cheapest flights, the best time to fly and much more.

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

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Kaua'i from Seattle found in the last 72 hours was to Lihue, at $357 round-trip. The most popular route is from Seattle (SEA) to Lihue (LIH), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $357.

Can I save money by flying with a layover from Seattle to Kaua'i?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,033, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Kaua'i, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Kaua'i is January, when tickets cost $392 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $656 and $651 respectively.

What’s the cheapest day of the week to fly from Seattle to Kaua'i?

The average price of all round-trip flights from Seattle to Kaua'i clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Kaua'i on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Seattle to Kaua'i. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Kaua'i, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Kaua'i, you should book around 4 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$149
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 10% increase in price.
Flight from Seattle to Lihue

FAQs - booking Kaua'i flights

  • How does KAYAK find such low prices on flights from Seattle to Kaua'i?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Kaua'i.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Kaua'i?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Kaua'i is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Kaua'i?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Seattle to Kaua'i with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Kaua'i?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Seattle to Kaua'i up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Kaua'i?

    The cheapest time of day to fly to Kaua'i is generally at night, when round-trip flights cost $273 on average. Morning departures are around 12% more expensive than evening flights, on average. The most expensive time of day to fly to Kaua'i is generally in the morning, which is peak travel time and where the average cost of a ticket is $642.

Reviews of the top 5 airlines serving from Seattle to Kaua'i

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Kaua'i. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Kaua'i? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.5Crew
8.1Boarding
7.8Comfort
7.0Entertainment
Airline reviews

After we boarded there was quite a long time before we actually took off, and there were no announcements from crew about why we were delayed. Later when they did make announcements they were largely inaudible. There was no food (other than for purchase) on the flight and no entertainment. Thats not a complaint, just explaining my ratings in those categories. The flight was smooth. Baggage claim was rapid.

8.0 ExcellentAnonymous, Aug 2025SEA - JNU
Read more Alaska Airlines reviews

After we boarded there was quite a long time before we actually took off, and there were no announcements from crew about why we were delayed. Later when they did make announcements they were largely inaudible. There was no food (other than for purchase) on the flight and no entertainment. Thats not a complaint, just explaining my ratings in those categories. The flight was smooth. Baggage claim was rapid.

The airline staff was great! The best safety review ive ever had!

Agent boarding us in San Diego lectured me on showing up on time for the flight, and said that if I had been three minutes later, he would have denied myself and my wife boarding. Our trusted traveler numbers were not in the system, even though I entered them when I bought the tickets. Our food orders were not in the system, even though I entered them prior to the flight. My wife requires a wheelchair, and that was delayed on both flights.

Why was I charged for a glass of wine on one flight and not on another? Why no movie or TVs? It was a long flight.

I liked that it didn't take 10 hours to drive here. Super short trip!

Wheelchair assistance was provided in Seattle and was very gratefully accepted. Thank you to the Alaska staff.

I payed for a window seat and was assigned the middle seat. The window seat just so happened to be open. Which made the ride alot more comfortable. I think I should get what I pay for without having to buy extra fight protection. If I pay for it first that should be the end of that seats history because it's now spoken for. That alone might make me think twice about using this again

We were flying 1st class for a special occasion. This was a Hawaiian airlines flight. It was exceptional. Very comfortable seats and space. Extremely attentive crew. Food was great for airline food. They provided tablets to watch and full headphones to listen. This was the best airline experience I have had in decades.

Didn't care for the crowding at the gate area at SEA TAC. Not a fault of the airline.

Loved the staff ease of flying snacks and free movies and WiFi

After being assaulted by a flight attendant I was then brushed off as oh well because he long braids didn’t mean to whip me in the eye. I have filed complaints and will see. But like any other issue I’ve had with kayak involved it’s been trash. Last time I’ll be using your app

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Hawaiian airlines has awful customer service. Told me to keep a flight I wasn’t boarding, instead of rebooking me under two separate reservations, which caused my whole reservation to be canceled. Major issues with leadership and management. The staff at Hilo was reluctant to give me a refund, so I had to by a first class ticket in order to get on a flight the same time as my partner. The blame was pointed at me without sincere apology until the supervisor came out, who also apparently had no authority to refund me. Still waiting on correspondence from the airline days later.

I could not believe that on a 5 hour plus flight we were not given a complimentary meal . That should be illegal. Or it would be nice to be informed beforehand that a complimentary meal would not be provided. The wording in the email I got about pre ordering food was phrased in a way that made the food seem like it would be free. Very misleading! Also during boarding we were informed there would be empty seats we could move to if we wanted, all we had to do was wait for an announcement, however an announcement was never made. Then when we tried to change seats ourselves we were singled out over the loud speaker and told we could not move without asking. Then the flight was about to take off , so we didn’t have time to ask . Then we were told we could not move to the exit row because you had to pay for those seats, but we were not told where we could move. Also no one was in the exit rows so , if something happened no one would be there to assist the passengers. Also people should be allowed to move there if the airline wasn’t able to sell them. One passenger asked if he could pay for the upgrade and the flight attendant said she did not have the capability to charge for the seat on her mobile device, so the airline ended up losing possible income anyways . So why not let people move there during flight if you have no way to charge them? Then the landing was bumpy and awful and many passengers complained out loud when we landed .

As noted above, getting on to the plane was rushed and upsetting since no boarding passes were available to me prior to boarding. Others were in line waiting as well. The flight and experience itself was fine. Very large plane. Two seats near windows; 4 seats in the middle aisles. Good leg room though and comfortable seats.

I could not use my Hawaiian airlines confirmation number to check in. I figured out on my own that I had to use Alaska airlines confirmation number to check in on the Alaska airlines site. I called Hawaiian airlines and they told me that they could not help me.

The flight was great! The flight attendants were friendly and attentive. I would definitely fly Hawaiian Aurlines again!

You have to buy the ear buds and they only offers little cup of water twice.

Boarding area in Seattle was super busy and tight due to the layout.

Boarding was confusing. Why are families so special that they get to board first? They and their stupid kids take up all the space in the overhead compartments. Then I get stuck having to gate check a bag when I've gone to a lot of trouble to pack efficiently to AVOID checking luggage.

service overall good. I thought paying for wi-fi in first class was tacky. Food was soggy.

Flight was on time, crew was friendly and prompt with the service. The only thing that could be improved is the seat space, but that's wishful thinking

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Our bags took a long time to get unloaded once we landed.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Internet was a bit expensive and did not work ask that week otherwise a good flight

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