$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 8/14. 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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Flights Deals

Best Kaua'i Flight Deals from Seattle

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lihue
Lihue1 stop$297
Lihue
Lihue1 stop$297

Cheap Flights from Seattle to Kaua'i

 
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

Tue, Oct 28 - Tue, Nov 4
Southwest Logo
10:10 am - 4:00 pmSEA-LIH
8h 50m1 stop
Southwest Logo
10:00 am - 8:40 pmLIH-SEA
8h 40m1 stop
$297Southwest
Find Deal
Tue, Sep 16 - Tue, Sep 23
Southwest Logo
6:45 am - 6:10 pmSEA-LIH
14h 25m2 stops
Southwest Logo
8:40 pm - 11:45 amLIH-SEA
12h 05m1 stop
$302Southwest
Find Deal
Thu, Sep 11 - Wed, Sep 17
American Airlines Logo
6:11 am - 2:27 pmSEA-LIH
11h 16m1 stop
American Airlines Logo
9:45 pm - 10:26 amLIH-SEA
9h 41m1 stop
$337American Airlines
Find Deal
Thu, Aug 14 - Wed, Aug 20
Hawaiian Airlines Logo
6:45 pm - 9:54 pmSEA-LIH
6h 09mnonstop
Hawaiian Airlines Logo
10:30 pm - 7:15 amLIH-SEA
5h 45mnonstop
$353Hawaiian Airlines
Find Deal
Wed, Sep 10 - Mon, Sep 15
American Airlines Logo
3:23 pm - 12:14 pmSEA-LIH
23h 51m1 stop
American Airlines Logo
9:45 pm - 10:26 amLIH-SEA
9h 41m1 stop
$356American Airlines
Find Deal
Thu, Aug 21 - Wed, Aug 27
Delta Logo
3:54 pm - 7:03 pmSEA-LIH
6h 09mnonstop
Delta Logo
9:40 pm - 6:29 amLIH-SEA
5h 49mnonstop
$358Delta
Find Deal
Thu, Aug 21 - Wed, Aug 27
Alaska Airlines Logo
11:25 am - 6:30 pmSEA-LIH
10h 05m1 stop
Alaska Airlines Logo
10:30 pm - 7:15 amLIH-SEA
5h 45mnonstop
$363Alaska Airlines
Find Deal
Wed, Oct 8 - Mon, Oct 20
Alaska Airlines Logo
2:00 pm - 7:26 pmSEA-LIH
8h 26m1 stop
Alaska Airlines Logo
6:49 pm - 7:00 amLIH-SEA
9h 11m1 stop
$368Alaska Airlines
Find Deal
Thu, Aug 14 - Wed, Aug 20
Hawaiian Airlines Logo
6:45 pm - 9:54 pmSEA-LIH
6h 09mnonstop
Hawaiian Airlines Logo
7:55 pm - 7:54 amLIH-SEA
8h 59m1 stop
$384Hawaiian Airlines
Find Deal
Sun, Aug 24 - Mon, Aug 25
Delta Logo
3:54 pm - 7:03 pmSEA-LIH
6h 09mnonstop
Delta Logo
9:40 pm - 6:29 amLIH-SEA
5h 49mnonstop
$388Delta
Find Deal
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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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Seattle to Kaua'i.

The cheapest ticket to Kaua'i from Seattle found in the last 72 hours was to Lihue, at $377 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 $377.

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 $1,009, 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 $374 (return) on average. On the other hand, the most expensive months are February and April, when the average cost of round-trip tickets is $638 and $631 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 Thursday 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.


Good to know

Low seasonJuly
High seasonApril
Cheapest flight$149
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly with an average 14% 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 16% 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 $616.

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
8.1Boarding
7.1Entertainment
8.5Crew
7.8Comfort
7.1Food
Airline reviews

Flight was very warm. It felt like there was no working AC.

4.0 OkayTOM, Jun 2025SEA - ONT
Read more Alaska Airlines reviews

Flight was very warm. It felt like there was no working AC.

Food was just ok..had snack box :( Crew was very nice

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Delayed. It's not our first flight with them either, it's actually our 3rd and all 3 were delayed by hours each time. It was a myriad of delays. On one flight we boarded after being delayed for a little over an hr, only to be told we were going to sit in the plane for another hour before departing. Once landed, we waited another 40ish min to get to our gate. On another flight, flight was delayed just under 3 hrs but atleast we got to wait it out at the airport terminal. Its just a bad experience overall flying with Alaska Airlines.

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

Very pleasant and the flight felt like it went by quick

All flight entertainment is from your own device and there was an $8 charge to connect. also 1 drink and a small bag of pretzels was all that was given to us. other that that the seats were good and the flight itself was as expected.

It is very bad they do not give you money back

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Cluster mess boarding. Can't wait for SWA reserved seating. Internet didn't seem to work on the plane.

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Only not having an assigned seat was an issue. Rest was great

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Flight information board was not immediately available; however, it was not far from where I disembarked to my next flight.

Liked the crew and cleanliness. Terrible comfort (seats did not recline and located next to 3 bathrooms). Did not like the hidden fees, that now there is an additional fee to get a seat.

Check in process was a mess. Long lines, equipment malfuctioning. One line for baggage tags then a second line for bag checkin.

It was not a good experience. When I went to check-in one of Alaska's employees told me I had to check-in with Hawaiian Airlines, which was on the opposite side of the airport. I made my way over and when I got to Hawaiian Airlines they told me I was in the wrong place. The employee saw the look of defeat in my face and was able to get someone to check me in and text me my boarding pass. I had to make my way all the way back to the other side of the airport and barely made my flight. I think it would be very helpful for employees to be more informed with these Hawaiian flights that are operated by Alaska so they are not rerouting people to the wrong terminals. Also, clear signage in the check-in area.

Same as ive said before. All airlines and TSA need a massive revamp.

The ticket and bag check in was chaotic at SEATAC. No clear communication or signage for bag drop off.

Very nice experience. The boarding however seemed somewhat mixed up, and we were delayed taking off.

It was very pleasant. The staff and crew are very polite.

Hawaiian Airlines staff is always professional & quick & easy check in & boarding process

Customer service by Susan of Alaskan Air was outstanding. We missed our flight out of JFK. She got us rebooked the following day. Way to go Susan.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

Pretty bad gate mgmt upon arrival. No open gates and we had to wait at midnight. Shouldn’t be a surprise that an aircraft is coming in.

We started with trouble checking in 24 hours early. Then my husband did not get his TSA precheck. Finally flight delayed due to no crew. I know things happen

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

Comfortable plane ride however on delays disappointment no real details as to why the delays when other flights are leaving the airport

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Delayed because of weather in Nashville. I think God or some higher power generally has cursed me when it comes to flying out of Charlotte on American. I'm delayed pretty much everytime. We need Team Cobra Kai types to come in and "sweep the leg(s)" of the Charlotte ops people on principle. Don't let the sweet southern rocking chairs fool you, Charlotte is a sinkhole

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