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$138+ Cheap flights from Kailua-Kona to Seattle (KOA - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — SEA
May 12 — May 191
Tue 5/12
Tue 5/19
1 adult, Economy
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Find cheap flights from Kailua-Kona to Seattle with Cheapflights

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Cheapflights Tip: The best prices from Kona Intl to Seattle/Tacoma Intl are usually found in February or September, booked 70 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap flight deals from Kailua-Kona to Seattle

Cheapest flights from Kailua-Kona to Seattle
Explore the most affordable flight options available from Kailua-Kona to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 12, 2026.

This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:04 pm
KOA
-
SEA
1 stop10h 21m
United Airlines
Fri 5/85:00 am
SEA
-
KOA
1 stop8h 47m
United Airlines
Deal found 4/8$321
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:02 pm
KOA
-
SEA
1 stop10h 10m
United Airlines
Tue 5/55:00 am
SEA
-
KOA
1 stop8h 47m
United Airlines
Deal found 4/7$336
This Alaska Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:25 pm
KOA
-
SEA
Nonstop5h 54m
Alaska Airlines
Mon 5/186:59 pm
SEA
-
KOA
Nonstop6h 15m
Alaska Airlines
Deal found 4/9$337
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:05 am
KOA
-
SEA
2 stops12h 00m
Southwest
Sun 5/105:00 am
SEA
-
KOA
1 stop10h 15m
Southwest
Deal found 4/8$342
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:04 pm
KOA
-
SEA
1 stop8h 39m
United Airlines
Thu 5/75:00 am
SEA
-
KOA
1 stop8h 47m
United Airlines
Deal found 4/10$346
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:55 pm
KOA
-
SEA
1 stop10h 00m
Delta
Tue 5/1210:15 am
SEA
-
KOA
1 stop12h 05m
Delta
Deal found 4/8$356
This Cheapflightsfares deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:41 pm
KOA
-
SEA
1 stop11h 06m
Multiple Airlines
Mon 5/114:27 pm
SEA
-
KOA
Nonstop6h 25m
Multiple Airlines
Deal found 4/9$361
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:00 am
KOA
-
SEA
1 stop9h 55m
Southwest
Fri 5/85:00 am
SEA
-
KOA
2 stops12h 15m
Southwest
Deal found 4/8$362
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:02 pm
KOA
-
SEA
1 stop10h 10m
United Airlines
Tue 5/51:21 pm
SEA
-
KOA
1 stop9h 29m
United Airlines
Deal found 4/7$366
This Alaska Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
KOA
-
SEA
Nonstop5h 59m
Alaska Airlines
Sun 5/104:27 pm
SEA
-
KOA
Nonstop6h 25m
Alaska Airlines
Deal found 4/9$367
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:55 pm
KOA
-
SEA
1 stop11h 28m
Delta
Mon 5/182:30 pm
SEA
-
KOA
Nonstop6h 07m
Delta
Deal found 4/9$375

Find flight deals from Kailua-Kona to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$321
(United Airlines)

One-way from

$138
(Southwest)

Popular in

June

Cheapest in

February

Average price

$542

Good round-trip deal

$524 or less

Good one-way deal

$315 or less
Provider with most accurate pricing for Kona Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kona Intl-Seattle/Tacoma Intl flights.
Search Deals
From Kona Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Kona Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Kona Intl to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Kona Intl to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kailua-Kona to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
Use the filters below to find and compare flights from Kailua-Kona to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Fri 5/15

3:40 pm-10:20 am

1 stop15h 40m

Seattle/Tacoma Intl

Mon 5/18

6:59 pm-10:14 pm

Nonstop6h 15m

$406

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Sun 5/3

8:05 am-1:10 am

2 stops14h 05m

Seattle/Tacoma Intl

Thu 5/7

6:15 am-2:30 pm

2 stops11h 15m

$408

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Mon 5/11

1:14 pm-12:53 am

1 stop8h 39m

Seattle/Tacoma Intl

Sun 5/24

8:50 pm-6:46 am

1 stop12h 56m

$417

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Fri 5/15

9:55 pm-9:59 am

1 stop9h 04m

Seattle/Tacoma Intl

Mon 5/18

2:30 pm-5:37 pm

Nonstop6h 07m

$425

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Thu 5/21

1:51 pm-11:58 pm

1 stop7h 07m

Seattle/Tacoma Intl

Wed 5/27

6:52 pm-2:41 pm

1 stop22h 49m

$443

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Wed 5/6

11:04 pm-10:43 am

1 stop8h 39m

Seattle/Tacoma Intl

Sun 5/10

8:45 am-7:50 pm

2 stops14h 05m

$512

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Tue 5/5

11:04 pm-10:43 am

1 stop8h 39m

Seattle/Tacoma Intl

Mon 5/11

8:45 am-7:50 pm

2 stops14h 05m

$537

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Sat 5/9

11:56 am-8:56 pm

Nonstop6h 00m

Seattle/Tacoma Intl

Fri 5/22

3:40 pm-6:55 pm

Nonstop6h 15m

$555
Quickest round-trip

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Thu 8/6

9:19 pm-6:12 am

Nonstop5h 53m

Seattle/Tacoma Intl

Wed 8/12

6:59 pm-10:10 pm

Nonstop6h 11m

$569
Cheapest one-way

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Wed 5/6

8:25 pm-2:10 pm

1 stop14h 45m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Kailua-Kona to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to Seattle in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Kailua-Kona-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kailua-Kona-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kailua-Kona-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kailua-Kona-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kailua-Kona to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kailua-Kona with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Kailua-Kona to Seattle. Price data was last updated on April 9, 2026.

The price you pay for your flight from Kailua-Kona to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 21 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Kailua-Kona to Seattle?

Currently, November is the cheapest month in which you can book a flight from Kailua-Kona to Seattle (average of $238). Flying from Kailua-Kona to Seattle in June is currently the most expensive (average of $501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from KOA to SEA?

Find hourly flight availability from Kailua-Kona to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 12, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 37% on flights from Kailua-Kona to Seattle by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Kailua-Kona to Seattle. Price data was last updated on April 4, 2026.

Travelers seeking maximum savings on their Kailua-Kona to Seattle flight should consider departing on Saturday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Kailua-Kona to Seattle?

The best insider tips for Kailua-Kona to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Kailua-Kona to Seattle trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on KOA and SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated April 12, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Kailua-Kona to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,221 reviews

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,221 reviews
Alaska Airlines
7.9
Good
12,221 reviews

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,406 reviews
Alaska Airlines
7.9
Good
12,221 reviews

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,839 reviews
Alaska Airlines
7.9
Good
12,221 reviews

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,571 reviews
Alaska Airlines
7.9
Good
12,221 reviews

Crew

8.5

Entertainment

7.0

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

Related info for your journey

Find useful and relevant information for your journey from Kailua-Kona to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Kailua-Kona to Seattle?

    You will need to book a flight from Kona Intl to Seattle/Tacoma Intl if you want to fly from Kailua-Kona to Seattle. At least 4 different airlines have flights from Kona Intl (KOA) to Seattle/Tacoma Intl (SEA) on a regular basis. There are 5 flights to Seattle from the Kailua-Kona airport per day. If you manage to book one that is nonstop, then you can expect the flight time from KOA to SEA to be around 5h 54m.

  • How popular is this Kailua-Kona to Seattle flight route?

    This flight path from Kona Intl to Seattle/Tacoma Intl was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Kailua-Kona to Seattle?

    For as low as $425, Alaska Airlines can have you in Seattle from Kailua-Kona in 9h 04m. Kailua-Kona and Seattle are separated by a distance of 2687 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Kailua-Kona to Seattle round-trip?

    Currently priced at $255, United Airlines will fly you from Kailua-Kona to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $257 and $307, respectively. United Airlines is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Kailua-Kona to Seattle one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $134. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Kailua-Kona to Seattle for a low price.

  • What are the most reliable airlines from Kailua-Kona to Seattle?

    Consider Qatar Airways (93%), KLM (92%) or Alaska Airlines (91%) when booking your flight. These represent the most reliable airlines when flying from Kailua-Kona to Seattle.

  • What are the cheapest flights from Kailua-Kona to Seattle?

    On average you can expect to pay $1,143 for a flight from Kailua-Kona to Seattle. The cheapest flight overall is $232 while the most popular route, (Kona Intl - Seattle/Tacoma Intl) is currently priced at $346.

  • Can I find deals for flights from Kailua-Kona to Seattle that include hotel bookings?

    Yes. In addition to deals on Kailua-Kona to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kailua-Kona to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kailua-Kona to Seattle.

  • Can I find deals for business class flights from Kailua-Kona to Seattle?

    Yes. Cheapflights offers flight deals from Kailua-Kona to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, November is the cheapest month in which you can book a flight from Kailua-Kona to Seattle (average of $238). Flying from Kailua-Kona to Seattle in June is currently the most expensive (average of $501). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Renton
Puyallup
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Fife
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Shoreline

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Top 4 airlines flying from Kailua-Kona to Seattle

Discover the top 4 airlines that operate flights from Kailua-Kona to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$255Average$436FlexibilityNo cancel feeOn-time69%
DeltaCheapest$257Average$465FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$307Average$544FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$357Average$497FlexibilityNo cancel feeOn-time85%

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