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$145+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Kona Intl to Seattle/Tacoma Intl are usually found in September or January, booked 70 days in advance, depart on a Sunday or Wednesday and return on a Monday

Cheap 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 September 15, 2025.

Round-trip from

$318
(Delta)

One-way from

$145
(KAYAK)

Popular in

December

Cheapest in

September

Average price

$387

Good round-trip deal

$389 or less

Good one-way deal

$244 or less
From Kona Intl to Seattle/Tacoma Intl
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One-way flight from Kona Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 3% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Kona Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Kona Intl to Seattle/Tacoma Intl.
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Find 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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 10/169:30 pmKOA - SEA
Nonstop6h 02mDelta
Mon 10/202:20 pmSEA - KOA
Nonstop6h 10mDelta
Deal found 9/14$318
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 10/168:00 amKOA - SEA
Nonstop5h 50mAlaska Airlines
Mon 10/202:00 pmSEA - KOA
1 stop9h 27mAlaska Airlines
Deal found 9/14$323
This Southwest deal was found by Cheapflights users on 9/13. 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.
Mon 11/310:00 amKOA - SEA
1 stop9h 50mSouthwest
Fri 11/145:50 amSEA - KOA
1 stop8h 55mSouthwest
Deal found 9/13$327
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 10/98:00 amKOA - SEA
Nonstop5h 50mAlaska Airlines
Sun 10/127:59 pmSEA - KOA
1 stop18h 08mAlaska Airlines
Deal found 9/13$348
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 11/147:14 amKOA - SEA
1 stop7h 32mAlaska Airlines
Mon 11/176:30 pmSEA - KOA
1 stop13h 58mAlaska Airlines
Deal found 9/14$358
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/69:20 pmKOA - SEA
Nonstop5h 54mAlaska Airlines
Sat 10/116:59 pmSEA - KOA
1 stop17h 28mAlaska Airlines
Deal found 9/15$378
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/189:20 pmKOA - SEA
Nonstop5h 57mAlaska Airlines
Tue 11/255:55 pmSEA - KOA
1 stop15h 21mAlaska Airlines
Deal found 9/14$379

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 September 15, 2025.
Use the filters below to find and compare flights from Kailua-Kona to Seattle that are best for you.

Fly from

Kailua-Kona

Fly to

Seattle

Route

Depart

Return

Price

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Mon 11/3

10:00 am-9:50 pm

1 stop9h 50m

Seattle/Tacoma Intl

Fri 11/14

5:50 am-12:45 pm

1 stop8h 55m

$327

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Thu 10/9

8:00 am-4:50 pm

Nonstop5h 50m

Seattle/Tacoma Intl

Sun 10/12

7:59 pm-11:07 am

1 stop18h 08m

$348

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Fri 11/7

9:30 pm-5:32 am

Nonstop6h 02m

Seattle/Tacoma Intl

Tue 11/11

2:00 pm-6:13 pm

Nonstop6h 13m

$348

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Mon 11/3

9:00 pm-7:40 am

1 stop8h 40m

Seattle/Tacoma Intl

Fri 11/14

5:26 pm-9:40 pm

Nonstop6h 14m

$353

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Tue 11/18

9:20 pm-5:17 am

Nonstop5h 57m

Seattle/Tacoma Intl

Tue 11/25

5:55 pm-7:16 am

1 stop15h 21m

$379

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Mon 10/6

9:20 pm-6:14 am

Nonstop5h 54m

Seattle/Tacoma Intl

Sat 10/11

3:46 pm-9:27 am

1 stop20h 41m

$380

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Fri 11/7

9:15 pm-11:20 am

2 stops12h 05m

Seattle/Tacoma Intl

Tue 11/11

6:15 am-12:45 pm

1 stop8h 30m

$402

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Thu 12/25

2:25 pm-12:59 am

1 stop8h 34m

$149

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Thu 10/16

9:15 am-10:45 pm

1 stop10h 30m

$149

Kailua-KonaSeattle

KOA - SEA

KOASEA

Kona Intl

Tue 10/14

10:00 pm-12:02 pm

1 stop11h 02m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 18 results
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The best insider tips for Kailua-Kona to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Kailua-Kona to Seattle trip
Airports
KOA

Security lines at KOA are rarely a concern. Arrive early for the slower agriculture inspection for mainland flights.

Read more about KOAby Brandon Schultz
SEA

Take the Link light rail from SEA to downtown Seattle. It's inexpensive, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on KOA and SEA

Brandon Schultz

Brandon Schultz

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

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 September 12, 2025.

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 70 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, January 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 $387). 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 September 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 19% on flights from Kailua-Kona to Seattle by exploring options for tickets in the afternoon.

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 September 14, 2025.

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

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 September 15, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian 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
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,723 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 10 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 49m.

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

    This flight path from Kona Intl to Seattle/Tacoma Intl was viewed by 11 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 $348, Southwest can have you in Seattle from Kailua-Kona in 5h 50m. 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 Hawaiian Airlines - these airlines can fly you to your destination from $299 and $334, respectively. United Airlines is 50% 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 United Airlines, with whom users have recently found tickets for as low as $149. However, be on the lookout for offers from Southwest and Alaska 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 KLM (98%), Delta (98%) or Virgin Atlantic (98%) 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 $704 for a flight from Kailua-Kona to Seattle. The cheapest flight overall is $182 while the most popular route, (Kona Intl - Seattle/Tacoma Intl) is currently priced at $297.

  • 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, January 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 $387). 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?

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$255Average$429FlexibilityNo cancel feeOn-time69%
DeltaCheapest$299Average$474FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$334Average$580FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$337Average$558FlexibilityNo cancel feeOn-time75%

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