$149 Cheap Flights from Kailua-Kona (KOA) to Seattle (SEA)

View $149 flight on Thu, Dec 4, 2025Opens in a new window

Popular airlines from Kona Intl. Airport (KOA) to Seattle-Tacoma International Airport (SEA)

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

Prices were available within the past 7 days and start at $149 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Oct 20 - Mon, Oct 27
KOA
Kona Coast
SEA
Seattle
$297 Roundtrip, found 11 hours ago
$297
Roundtrip
found 11 hours ago
Select Southwest Airlines flight, departing Mon, Oct 20 from Kona Coast to Seattle, returning Mon, Oct 27, priced at $297 found 11 hours ago
United
Wed, Oct 8 - Thu, Oct 9
KOA
Kona Coast
SEA
Seattle
$297 Roundtrip, found 8 hours ago
$297
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Oct 8 from Kona Coast to Seattle, returning Thu, Oct 9, priced at $297 found 8 hours ago
American Airlines
Tue, Nov 25 - Thu, Dec 4
KOA
Kona Coast
SEA
Seattle
$297 Roundtrip, found 1 day ago
$297
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Nov 25 from Kona Coast to Seattle, returning Thu, Dec 4, priced at $297 found 1 day ago
Delta
Wed, Dec 3 - Thu, Dec 4
KOA
Kona Coast
SEA
Seattle
$301 Roundtrip, found 6 days ago
$301
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Dec 3 from Kona Coast to Seattle, returning Thu, Dec 4, priced at $301 found 6 days ago
United
Mon, Oct 20 - Mon, Oct 27
KOA
Kona Coast
SEA
Seattle
$302 Roundtrip, found 11 hours ago
$302
Roundtrip
found 11 hours ago
Select United flight, departing Mon, Oct 20 from Kona Coast to Seattle, returning Mon, Oct 27, priced at $302 found 11 hours ago
United
Tue, Nov 25 - Thu, Nov 27
KOA
Kona Coast
SEA
Seattle
$304 Roundtrip, found 5 days ago
$304
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 25 from Kona Coast to Seattle, returning Thu, Nov 27, priced at $304 found 5 days ago
Bargain Flight
Mon, Dec 22 - Wed, Jan 7
KOA
Kona Coast
SEA
Seattle
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Mon, Dec 22 from Kona Coast to Seattle, returning Wed, Jan 7, priced at $305 found 2 days ago
Bargain Flight
Tue, Oct 7 - Mon, Oct 13
KOA
Kona Coast
SEA
Seattle
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Tue, Oct 7 from Kona Coast to Seattle, returning Mon, Oct 13, priced at $309 found 1 day ago
United
Mon, Oct 6 - Mon, Oct 13
KOA
Kona Coast
SEA
Seattle
$310 Roundtrip, found 1 day ago
$310
Roundtrip
found 1 day ago
Select United flight, departing Mon, Oct 6 from Kona Coast to Seattle, returning Mon, Oct 13, priced at $310 found 1 day ago
Alaska Airlines
Thu, Oct 30 - Mon, Nov 3
KOA
Kona Coast
SEA
Seattle
$312 Roundtrip, found 2 days ago
$312
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Oct 30 from Kona Coast to Seattle, returning Mon, Nov 3, priced at $312 found 2 days ago

Find the cheapest month to fly from Kailua-Kona (KOA) to Seattle (SEA)

December is typically the cheapest month to fly

From $251 - $817 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $517
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $517
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
$297
Distance
2688 mi
Average flight time
8 hours 53 mins

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 October. 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 $149 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?
Get a cheap one-way flight from $149 or cheap return flight from $297 from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
Traveling in October may help you find better deals, as it's the cheapest month for flights between KOA and SEA. You'll usually find the lowest prices during the off-season.
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 Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA)?
Delta Air Lines and Alaska Airlines are well-known airlines offering competitive fares. Remember that flight prices from Kona Intl. Airport (KOA) to Seattle - Tacoma Intl. Airport (SEA) can change based on demand, travel dates and how early you book. With Expedia's filter tool, you can easily find a KOA to SEA flight that works with your plans and budget.
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.