$156 Cheap Flights from Kailua-Kona (KOA) to Seattle (SEA)

View $156 flight on Tue, Jun 3, 2025Opens in a new window

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $156 for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, May 28 - Tue, Jun 3
KOA
Kona Coast
SEA
Seattle
$339 Roundtrip, found 3 days ago
$339
Roundtrip
found 3 days ago
Select United flight, departing Wed, May 28 from Kona Coast to Seattle, returning Tue, Jun 3, priced at $339 found 3 days ago
United
Wed, May 21 - Mon, May 26
KOA
Kona Coast
SEA
Seattle
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select United flight, departing Wed, May 21 from Kona Coast to Seattle, returning Mon, May 26, priced at $344 found 2 days ago
American Airlines
Thu, Sep 4 - Mon, Sep 8
KOA
Kona Coast
SEA
Seattle
$352 Roundtrip, found 4 days ago
$352
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 4 from Kona Coast to Seattle, returning Mon, Sep 8, priced at $352 found 4 days ago
United
Tue, Jun 3 - Thu, Jun 5
KOA
Kona Coast
SEA
Seattle
$357 Roundtrip, found 1 day ago
$357
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jun 3 from Kona Coast to Seattle, returning Thu, Jun 5, priced at $357 found 1 day ago
Delta
Wed, May 21 - Mon, May 26
KOA
Kona Coast
SEA
Seattle
$360 Roundtrip, found 2 days ago
$360
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 21 from Kona Coast to Seattle, returning Mon, May 26, priced at $360 found 2 days ago
Hawaiian Airlines
Mon, Jun 2 - Wed, Jun 4
KOA
Kona Coast
SEA
Seattle
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Jun 2 from Kona Coast to Seattle, returning Wed, Jun 4, priced at $366 found 1 day ago
Southwest Airlines
Mon, May 12 - Wed, May 14
KOA
Kona Coast
SEA
Seattle
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, May 12 from Kona Coast to Seattle, returning Wed, May 14, priced at $366 found 1 day ago
United
Wed, Sep 17 - Wed, Sep 24
KOA
Kona Coast
SEA
Seattle
$367 Roundtrip, just found
$367
Roundtrip
just found
Select United flight, departing Wed, Sep 17 from Kona Coast to Seattle, returning Wed, Sep 24, priced at $367 just found
American Airlines
Wed, Sep 17 - Wed, Sep 24
KOA
Kona Coast
SEA
Seattle
$367 Roundtrip, just found
$367
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 17 from Kona Coast to Seattle, returning Wed, Sep 24, priced at $367 just found
American Airlines
Wed, May 7 - Tue, May 13
KOA
Kona Coast
SEA
Seattle
$369 Roundtrip, found 4 days ago
$369
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, May 7 from Kona Coast to Seattle, returning Tue, May 13, priced at $369 found 4 days ago
Flights from Kailua-Kona (KOA) to Seattle (SEA)
Origin airport
Kona Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$339
Distance
2688 mi

Kailua-Kona to Seattle Flights

The cheapest times to fly from Kailua-Kona to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kailua-Kona to Seattle are during the month of May. You can find some of the cheapest flights from Kailua-Kona to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Kailua-Kona to Seattle

Sunday is one of the best days to book for cheap flights from Kailua-Kona to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Kailua-Kona to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kailua-Kona to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $156 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kailua-Kona to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kailua-Kona to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) cost?
You can land affordable return tickets from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) starting at $384. Book a seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving KOA on May 12 2025 and touching down at SEA. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from KOA to SEA?
The cheapest flights from KOA to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
You can travel nonstop from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) on an Alaska Airlines flight.
What is the cheapest airline that flies from KOA to SEA?
Right now, the cheapest carrier operating one-way flights from KOA to SEA is Alaska Airlines. You can jet off on this route from $190. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from KOA on June 12 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
Each day, an average of 4 nonstop flights take off from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA). Choose the departure date that works for you.
What are the most popular departure times for flights from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
More people fly between KOA and SEA at 9 PM than at any other point in the day. Prefer a quieter experience? Travel outside of rush hours and you’re likely to save on your fare as well.
What day of the week has the most flights from KOA to SEA?
Travel on a Friday if you’re searching for the best selection of flights from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
The first flight of the day departing from Kona Intl. Airport (KOA) is at around 9:00AM UTC-10. Board this plane and you’ll touch down at Seattle - Tacoma Intl. Airport (SEA) at approximately 4:59PM UTC-8. The total flight duration is 5h 59m.
How long does it take to fly from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
It takes approximately 5 hours and 59 minutes to cover the 2,700 mi from KOA to SEA.
What airline has the least delays from KOA to SEA?
Delta Air Lines has the best performance for on-time direct flights from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA), with an on-time score of 82%. Use the Expedia App to look up your journey status before you go and get real-time alerts about any changes.
What is the best time to fly from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid possible delays on the Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Seattle from Kona Intl. Airport (KOA)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from Kona Intl. Airport (KOA). Explore the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until just before your trip to book a flight from KOA to SEA generally means paying more. Although you may find some last-minute discounts, they’re not always guaranteed. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a KOA to SEA flight and hotel package?
Compared with arranging flights and hotels separately, booking a KOA to SEA flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one convenient place will take the hassle out of travel planning. Just pick your flights and choose from our extensive range of hotels, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your KOA to SEA flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you’d like more information.

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*Available to One Key members.