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Cheap flights from Kaua'i to Seattle (SEA)

LIH — SEA
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Find flight deals from Kaua'i to Seattle

Keep the following information in mind while searching for Kaua'i to Seattle flight deals. Data was last updated July 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$341
(Alaska Airlines)

One-way from

$166
(Southwest)

Popular in

June

Cheapest in

April

Average price

$612

Good round-trip deal

$436 or less

Good one-way deal

$274 or less
Provider with most accurate pricing for Lihue-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Lihue-Seattle/Tacoma Intl flights.
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From Kaua'i to Seattle/Tacoma Intl
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One-way flight from Kaua'i to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($106 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in July 2026
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Price to beat on a round-trip flight from Kaua'i to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Kaua'i to Seattle/Tacoma Intl.
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Cheapflights Insights

Everything you need to know about your flight from Kaua'i to Seattle

What is the cheapest month to book a flight from Kaua'i to Seattle?

Currently, April is the cheapest month in which you can book a flight from Kaua'i to Seattle (average of $319). Flying from Kaua'i to Seattle in June is currently the most expensive (average of $808). 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 FUS to SEA?

Find hourly flight availability from Kaua'i 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 July 21, 2026.

When flying from Kaua'i to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 21, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andHawaiian Airlines from Kaua'i to Seattle. 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
12,686 reviews

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,686 reviews
Alaska Airlines
7.9
Good
12,686 reviews

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Delta
7.8
Good
8,478 reviews
Alaska Airlines
7.9
Good
12,686 reviews

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Hawaiian Airlines
7.8
Good
2,823 reviews
Alaska Airlines
7.9
Good
12,686 reviews

Overall

7.9

Boarding

8.1

Comfort

7.8

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from Kaua'i?

    For a flight from Kaua'i to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How popular is this Kaua'i to Seattle flight route?

    The Kaua'i to Seattle/Tacoma Intl flight path was viewed by 1 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 Kaua'i to Seattle?

    Southwest, Delta, and Alaska Airlines can get you from Kaua'i to Seattle in just under 5h 51m. Your travel time can differ by up to 9h 44m. There are 2698 mi between Kaua'i and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Kaua'i to Seattle one-way?

    The cheapest airlines for a one-way flight from Kaua'i to Seattle are Hawaiian Airlines ($132), United Airlines ($158), and Delta ($164).

  • What are the most reliable airlines from Kaua'i to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Kaua'i to Seattle on time: Scandinavian Airlines (100%), KLM (98%), Delta (98%).

  • What are the cheapest flights from Kaua'i to Seattle?

    On average you can expect to pay $803 for a flight from Kaua'i to Seattle. The cheapest flight overall is $228 while the most popular route, (Lihue - Seattle/Tacoma Intl) is currently priced at $373.

  • Can I find deals for flights from Kaua'i to Seattle that include hotel bookings?

    Yes. In addition to deals on Kaua'i to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kaua'i to Seattle?

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

  • Can I find deals for business class flights from Kaua'i to Seattle?

    Yes. Cheapflights offers flight deals from Kaua'i 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 Kaua'i to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Kaua'i to Seattle (average of $319). Flying from Kaua'i to Seattle in June is currently the most expensive (average of $808). 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
Renton
Lacey
Leavenworth
Olympia
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Tukwila
Centralia
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Top 3 airlines flying from Kaua'i to Seattle

Discover the top 3 airlines that operate flights from Kaua'i 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 July 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$257Average$455FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$307Average$551FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$315Average$573FlexibilityNo cancel feeOn-time85%

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