KOA - SEA

$158 Find Cheap Flights from Kailua-Kona to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Kailua-Kona to Seattle departing on 11/16. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Kailua-Kona to Seattle, 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 Kailua-Kona to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$382
Typical prices: $567-$382
Southwest
Thu 8/27Tue 9/8
KOA - SEA • 2 stops
Cheapest non-stop
$437
Typical prices: $517-$367
Alaska Airlines
Wed 10/7Wed 10/14
KOA - SEA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Delta offers free Wi-Fi for SkyMiles members.
Prepare for USDA checkpoints at Kona Intl.
Expert advice
Expert advice
+1
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Expert advice
Expert advice
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Top airlines
Cheapest • from $382 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines and Delta. Average duration is 5h 56m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Kailua-Kona to Seattle (KOA-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Kailua-Kona to Seattle 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 Kailua-Kona to Seattle

Thu, Aug 27 - Tue, Sep 8
Southwest Logo
6:05 am - 9:50 pm
KOA
-
SEA
12h 45m
2 stops
Southwest Logo
5:55 am - 12:25 pm
SEA
-
KOA
9h 30m
1 stop
$382Southwest
Wed, Aug 26 - Tue, Sep 8
Delta Logo
9:55 pm - 4:40 pm
KOA
-
SEA
15h 45m
1 stop
Delta Logo
2:30 pm - 5:51 pm
SEA
-
KOA
6h 21mnonstop
$407Delta
Mon, Jun 8 - Tue, Jun 9
Alaska Airlines Logo
2:28 pm - 4:36 pm
KOA
-
SEA
23h 08m
1 stop
Alaska Airlines Logo
6:59 pm - 10:14 pm
SEA
-
KOA
6h 15mnonstop
$410Alaska Airlines
Thu, Aug 27 - Tue, Sep 8
Southwest Logo
10:00 am - 8:50 pm
KOA
-
SEA
7h 50m
1 stop
Southwest Logo
5:55 am - 12:25 pm
SEA
-
KOA
9h 30m
1 stop
$415Southwest
Wed, Aug 26 - Tue, Sep 8
Delta Logo
9:06 pm - 6:00 am
KOA
-
SEA
5h 54mnonstop
Delta Logo
5:45 am - 6:34 pm
SEA
-
KOA
15h 49m
2 stops
$417Delta
Thu, Aug 27 - Tue, Sep 8
Southwest Logo
10:00 am - 12:20 am
KOA
-
SEA
11h 20m
2 stops
Southwest Logo
5:55 am - 2:10 pm
SEA
-
KOA
11h 15m
2 stops
$420Southwest
Wed, Oct 7 - Wed, Oct 14
United Airlines Logo
10:55 pm - 9:59 am
KOA
-
SEA
8h 04m
1 stop
United Airlines Logo
3:30 pm - 9:27 pm
SEA
-
KOA
8h 57m
1 stop
$426United Airlines
Tue, Jul 14 - Wed, Jul 15
Multiple Airlines Logo
11:15 am - 4:45 pm
KOA
-
SEA
26h 30m
1 stop
Multiple Airlines Logo
6:59 pm - 10:10 pm
SEA
-
KOA
6h 11mnonstop
$428Multiple Airlines
Wed, Oct 7 - Wed, Oct 14
United Airlines Logo
10:55 pm - 9:59 am
KOA
-
SEA
8h 04m
1 stop
United Airlines Logo
6:29 am - 9:27 pm
SEA
-
KOA
17h 58m
2 stops
$432United Airlines
Wed, Oct 7 - Wed, Oct 14
Alaska Airlines Logo
11:59 am - 8:59 pm
KOA
-
SEA
6h 00mnonstop
Alaska Airlines Logo
5:50 pm - 9:08 pm
SEA
-
KOA
6h 18mnonstop
$437Alaska Airlines
Booking Insights

KAYAK's insights & trends for Kailua-Kona to Seattle flights

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

How much is a round-trip flight from Kailua-Kona to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Kailua-Kona to Seattle departing in August.

What’s the cheapest day of the week to fly from Kailua-Kona to Seattle?

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

When flying from Kailua-Kona to Seattle, you should consider leaving on a Sunday and avoid Mondays if you are looking for the best rates. For your return to Kailua-Kona, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Kailua-Kona to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Kailua-Kona to Seattle, 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 Kailua-Kona to Seattle is February, where tickets cost $367 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $646 and $627 respectively.

How far in advance should I book a flight from Kailua-Kona to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Kailua-Kona to Seattle, 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 Kailua-Kona to Seattle, you should book around 4 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Kailua-Kona to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on KOA

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonFebruary
Cheapest flight$158
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Kailua-Kona to Seattle

When to book flights from Kailua-Kona to Seattle

Are your dates flexible? Find out the best times to travel from Kailua-Kona to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Kailua-Kona to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Kailua-Kona to Seattle 
Verified travelerFlew with Alaska Airlines
KOA
-
SEA
Dec 2025
Eat your fruits and veggies before you attempt to board. The USDA doesn't allow out of Hawaii.
Verified travelerFlew with Alaska Airlines
KOA
-
SEA
May 2024
Bring a blanket if you plan to sleep

FAQs for booking flights from Kailua-Kona to Seattle

  • What are some common connection cities on a flight from Kailua-Kona to Seattle?

    One-stop flights from KOA to SEA aboard United tend to stop in San Francisco (SFO) or Los Angeles (LAX). Delta also tends to stop at LAX, as does American. Other American one-stop flights tend to stop in Phoenix (PHX). Hawaiian Airlines flights tend to stop in Honolulu and Alaska Airlines flights in San Jose, California (SJC).

  • What's a good airline to use if I want to send an unaccompanied minor from Kailua-Kona to Seattle?

    Consider purchasing a non-stop ticket aboard Alaska Airlines. Your Unaccompanied Minor will fly as a member of their Junior Jetsetters program and get a lanyard and wristband, early boarding, a complimentary meal, and constant supervision from drop-off to pick-up. The service is available for kids 5 to 17.

  • Does either the Kailua-Kona or Seattle airport have accommodations for travelers with emotional or cognitive challenges?

    The Seattle-Tacoma International Airport (SEA) recognizes and uses the Sunflower Lanyard Hidden Disabilities Program. Travelers with challenges such as autism or PTSD can sign up to where a sunflower lanyard that discreetly alerts airport and airline staff that they will need extra time and assistance negotiating the arrivals process.

  • Which airline flying from Kailua-Kona to Seattle is the best for bringing luggage?

    Hawaiian Airlines offers some of the cheapest tickets available from KOA to SEA. They allow one carry-on and their checked-bag fees tend to be lower than those of the other airlines. The carry-on must be within 9 x 14 x 22 inches and weigh no more than 25 lb. A checked bag must have dimensions totaling no more than 61 inches and weigh no more than 50 lb.

  • What is the cheapest flight from Kailua-Kona to Seattle?

    In the last 7 days, the lowest price for a flight from Kailua-Kona to Seattle was $158 for a one-way ticket and $382 for a round-trip.

  • Do I need a passport to fly between Kailua-Kona and Seattle?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Kailua-Kona to Seattle?

    Kailua-Kona and Seattle are both served by 1 main airport. You will leave Kailua-Kona from Kona Intl and will be arriving at Seattle/Tacoma Intl.

  • Which airlines offer Wi-Fi service onboard planes from Kailua-Kona to Seattle?

    All the following airlines offer inflight Wi-Fi service on the Kailua-Kona to Seattle flight route: Delta, Alaska Airlines, Hawaiian Airlines, JetBlue, Air Canada, and American Airlines.

  • Which aircraft models fly most regularly from Kailua-Kona to Seattle?

    The Airbus A321neo is the aircraft model that flies most regularly on the Kailua-Kona to Seattle flight route.

  • Which airline alliances offer flights from Kailua-Kona to Seattle?

    SkyTeam, and oneworld are the airline alliances operating flights between Kailua-Kona and Seattle, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Kailua-Kona to Seattle?

    There are nonstop flights from Kailua-Kona to Seattle on a daily basis.

  • Which is the best airline for flights from Kailua-Kona to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Kailua-Kona to Seattle are Alaska Airlines and Delta. With an average price for the route of $529 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $478 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Kailua-Kona to Seattle?

    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 Kailua-Kona to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Kailua-Kona 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 Kailua-Kona to Seattle?

    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 to Seattle with an airline and back to Kailua-Kona with another airline. Booking your flights between Kailua-Kona and SEA can sometimes prove cheaper using this method.

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

    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 to Seattle from Kailua-Kona up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Kailua-Kona to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $261 or less one-way and $524 or less round-trip.
  • Kona International Airport (KOA), serving the island of Hawaii, is a hub for Mokulele Airlines, Go! Mokulele, and Big Island Air. The Seattle-Tacoma International Airport (SEA) is a hub for Alaska Airlines and Delta. Some of the cheapest flights from KOA to SEA are aboard Alaska Airlines.
  • Although there are no airline lounges that economy ticket holders can access at KOA, waiting in the airport itself is an interesting treat. The Kona International Airport is unique in that both of its small terminals are open-air, allowing you to enjoy the natural splendor of Hawaii virtually up until the moment you board your plane to Seattle.
  • Won't you land at the Seattle-Tacoma International Airport (SEA), you can get into downtown Seattle by taking the Link Light Rail. From baggage claim, go up to the fourth floor, across the Sky Bridge, and into the parking garage in order to catch the train. You can also take a Sound Transit bus into downtown, which you can catch in the lower drive of the main terminal.
  • If you want to park your car at KOA before your flight to SEA, the parking lot costs under $20 a day. This lot also has designated stalls for electric vehicles and accessible parking spaces. The main parking lot is located just across the street from the terminal.
  • If you are looking for a flight from Kailua-Kona to Seattle that leaves a small carbon footprint, consider a non-stop flight aboard Delta. This economy flight emits approximately 42% less CO2 into the atmosphere than average flights that run the same route. Non-stop flights aboard Alaska emit about 41% less carbon dioxide.

Prefer to fly direct from Kailua-Kona to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Kona Intl to Seattle/Tacoma Intl.
Find which airlines fly direct from Kona Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Kona Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Direct returns

Seattle/Tacoma Intl to Kona Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Reviews of the top 3 airlines serving from Kailua-Kona to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Kailua-Kona to Seattle. 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 Kailua-Kona to Seattle? 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.
7.9
Alaska AirlinesOverall score based on 12411 reviews
7.0Food
7.0Entertainment
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

4.0 OkayAnonymous, May 2026
JFK - SEA
Read more Alaska Airlines reviews

90 minute delay boarding the plane, 45 minute delay on the terminal, 2 hours late arriving, currently waiting 45 minutes on the tarmac for a gate so we can BEGIN deboarding. Absolute mess. Definitely will be my last flight with Alaska.

Extremely professional crew there are very friendly and first class. Everything worked well on the plane. Food was to be expected. Drinks were very good. Shout out to Charlie in first class who was an excellent flight attendant.

The plug in for my charger didn’t work and on my return flight back home the passenger in the window seat got up seven times

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Ok, but nothing special. Long flight with no blanket/pillow set.

Flight was delayed by 3 hrs. Forcing missed connection and overnight stay. Terrible.

Made our reservations 6 months ago. When we arrived at the airport we were informed they no longer have assigned seating. We were placed in the last row next to the restrooms. Our seats did not recline. I do not like the fact you are assigning seats. I don’t feel it’s fair. People who make last minute reservations sit in the middle seats. It’s did Southwest now have assigned seating and you assign seats. Even Southwest was more fair than Alaska.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Much better than I expected. I had an economy ticket so I was really happy the flight was so comfy and the service so generous. Passengers were all polite too.

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

The entire crew had everything handled and truly worked together. More than once, I saw them hustle down the aisle and back just to serve customers.

The flight was great. But the problem is we actually booked a flight with Hawaiian Airlines. We even received a Hawaiian Airlines confirmation number. So this made it really difficult to check in the online. So I had to call Hawaiian Airlines to get our Alaskan Airlines confirmation code to check in. Also weren’t told we were flying on Alaskan, but once we got on the plane, everything went well!

Agents talk too fast over intercom. I know it’s memorized and we’ve all heard it before. Just slow down a little. Stop charging for checked bags. I was pleased to get my bags promptly at each end of my flight.

It was clean and the crew was great. I wish the chairs could recline just a little more and you would provide small pillows for people with bad backs. My back is fused and a little support would be great.

Everything you need to know for your flight from Kailua-Kona to Seattle

Information on your arrival and departure airports