KOA - SEA

$128 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 3/2. 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
$296
Overall average: $494
United Airlines
Thu 4/23Sun 4/26
KOA - SEA • 1 stop
Cheapest non-stop
$326
Typical prices: $415-$539
Hawaiian Airlines
Thu 3/5Wed 3/11
KOA - SEA • Non-stop
Our travelers' advice
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
+1
Expert advice
Expert advice
+1
Top airlines
United Airlines
Cheapest • from $296 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 21% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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, Apr 23 - Sun, Apr 26
United Airlines Logo
10:48 pm - 10:39 am
KOA
-
SEA
8h 51m
1 stop
United Airlines Logo
7:12 am - 12:45 pm
SEA
-
KOA
8h 33m
1 stop
$296United Airlines
Thu, Apr 23 - Mon, Apr 27
Delta Logo
8:50 pm - 5:48 am
KOA
-
SEA
5h 58mnonstop
Delta Logo
7:35 am - 5:43 pm
SEA
-
KOA
13h 08m
1 stop
$317Delta
Thu, Mar 5 - Wed, Mar 11
Hawaiian Airlines Logo
6:00 am - 3:49 pm
KOA
-
SEA
7h 49m
1 stop
Hawaiian Airlines Logo
3:45 pm - 10:15 pm
SEA
-
KOA
9h 30m
1 stop
$322Hawaiian Airlines
Thu, Mar 5 - Wed, Mar 11
Hawaiian Airlines Logo
9:05 pm - 5:03 am
KOA
-
SEA
5h 58mnonstop
Hawaiian Airlines Logo
6:30 pm - 9:57 pm
SEA
-
KOA
6h 27mnonstop
$326Hawaiian Airlines
Thu, Mar 5 - Wed, Mar 11
Hawaiian Airlines Logo
6:00 am - 3:49 pm
KOA
-
SEA
7h 49m
1 stop
Hawaiian Airlines Logo
6:30 pm - 9:57 pm
SEA
-
KOA
6h 27mnonstop
$327Hawaiian Airlines
Tue, May 5 - Mon, May 11
Delta Logo
8:50 pm - 5:48 am
KOA
-
SEA
5h 58mnonstop
Delta Logo
2:35 pm - 5:42 pm
SEA
-
KOA
6h 07mnonstop
$337Delta
Tue, May 5 - Mon, May 11
Delta Logo
10:00 pm - 2:51 pm
KOA
-
SEA
13h 51m
1 stop
Delta Logo
2:35 pm - 5:42 pm
SEA
-
KOA
6h 07mnonstop
$340Delta
Tue, Mar 3 - Tue, Mar 17
Multiple Airlines Logo
8:45 am - 11:40 pm
KOA
-
SEA
12h 55m
1 stop
Multiple Airlines Logo
6:38 pm - 10:05 pm
SEA
-
KOA
6h 27mnonstop
$342Multiple Airlines
Mon, Mar 9 - Wed, Mar 11
Alaska Airlines Logo
10:57 pm - 8:47 am
KOA
-
SEA
30h 50m
1 stop
Alaska Airlines Logo
12:44 pm - 4:13 pm
SEA
-
KOA
6h 29mnonstop
$345Alaska Airlines
Wed, Mar 11 - Tue, Mar 17
Multiple Airlines Logo
6:56 pm - 5:30 am
KOA
-
SEA
7h 34m
1 stop
Multiple Airlines Logo
7:00 am - 5:47 pm
SEA
-
KOA
13h 47m
1 stop
$346Multiple 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.

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 Thursday 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 September, where tickets cost $387 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $637 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 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 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$128
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 3% increase in price.
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 3 days, the lowest price for a flight from Kailua-Kona to Seattle was $128 for a one-way ticket and $296 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?

    Delta, Alaska Airlines, Hawaiian Airlines, JetBlue, and American Airlines offer inflight Wi-Fi service on the Kailua-Kona to Seattle flight route.

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

    The Boeing 757-200 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 $564 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $458 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 $283 or less one-way and $434 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.
8.0
Alaska AirlinesOverall score based on 11874 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.1Food
7.0Entertainment
Airline reviews

The flight was on time and got in early which allowed us to get to our next flight.

10.0 ExcellentKen, Feb 2026
DFW - SEA
Read more Alaska Airlines reviews

The flight was on time and got in early which allowed us to get to our next flight.

The plane not having any overhead bin space was inconvenient. Anytime my luggage has to be checked it ends up covered in scratches and that’s not covered by the airlines for replacement/repair. The WiFi did not work or was not offered for the flight from Seattle to Vancouver.

Most of it was good. The flights were on time. The staff were helpful and friendly. I had a short time connecting flights and they let me deplane first and I made the connection. On the outbound from DTW to SEA I was seated in the middle of two very large people. I am petite and even with my arms crossed they were both hanging over into my seat touching me. The meal had way too much pepper and spice, my lips were burning. Other than those two issues, I was pleased with the service and the trip and will use Alaska Air again.

Wheelchair assistant was on the spot, and very helpful. Gate agent was kind, and made sure I boarded the plane without having to try to hurry with my painful hip. My seat was so comfortable, 20A. I am tall, 5'9 and I need to stretch out my legs due to chronic nerve pain in my back that runs down my right leg, in addition to the bursitis in my right hip. Alaska air has the best economy seating in the market. So much room for legs, elbows, etc. When I arrived in SEA, the next Wheelchair was waiting to take me to the next gate. Great communication.

I had to cancel my trip due to health reasons three days after making the reservation. I was stunned to find out that the ticket was not able to be credited for future travel. $734 loss. Not happy that this was not my experience with Southwest Airlines. I will stick with SW in the future. Boo Alaskan Air and Kayak.

The staff was extremely helpful and accommodating. The only thing I could have done without was the long layover in between flights but I was going to a less popular destination so it was understandable.

All went well, right on time, easy boarding. We ordered the evergreens grain bowl and were surprised and pleased how adequate it was for vegan lunch! Landing was smooth and gate exit was easy

My seat and tray were filthy. Someone’s used straw was in the seat pocket and there were coffee stains and food crumbs on the tray table

On time, good boarding process very quick. Clean planes. Planes are tight, not much leg room ( i am only 5'8"). Some attendants are moving through aisles fiercely and pushing passengers. Got yelled for a tiny man bag that it is an extra personal tem ( size of a wallet) Wi-Fi on the plane does not work well with android phones.

I didn’t go, and can’t use a no refundable ticket.

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

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