$139 Cheap United flights Seattle (SEA) to Kailua-Kona (KOA)

View $139 flight on Thu, Sep 4, 2025Opens in a new window

$139 Cheap United flights Seattle (SEA) to Kailua-Kona (KOA)

Prices were available within the past 7 days and start at $139 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
KOA
Kona Coast
$277 Roundtrip, just found
$277
Roundtrip
just found
Select United flight, departing Wed, Nov 12 from Seattle to Kona Coast, returning Wed, Nov 19, priced at $277 just found
United
Tue, Nov 4 - Thu, Nov 6
SEA
Seattle
KOA
Kona Coast
$283 Roundtrip, found 12 hours ago
$283
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Nov 4 from Seattle to Kona Coast, returning Thu, Nov 6, priced at $283 found 12 hours ago
United
Tue, Sep 2 - Tue, Sep 9
SEA
Seattle
KOA
Kona Coast
$284 Roundtrip, found 2 hours ago
$284
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Sep 2 from Seattle to Kona Coast, returning Tue, Sep 9, priced at $284 found 2 hours ago
United
Tue, Nov 4 - Fri, Nov 7
SEA
Seattle
KOA
Kona Coast
$290 Roundtrip, found 10 hours ago
$290
Roundtrip
found 10 hours ago
Select United flight, departing Tue, Nov 4 from Seattle to Kona Coast, returning Fri, Nov 7, priced at $290 found 10 hours ago
United
Tue, Oct 14 - Wed, Oct 15
SEA
Seattle
KOA
Kona Coast
$296 Roundtrip, found 15 hours ago
$296
Roundtrip
found 15 hours ago
Select United flight, departing Tue, Oct 14 from Seattle to Kona Coast, returning Wed, Oct 15, priced at $296 found 15 hours ago
United
Tue, Sep 16 - Tue, Sep 23
SEA
Seattle
KOA
Kona Coast
$302 Roundtrip, found 2 hours ago
$302
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Sep 16 from Seattle to Kona Coast, returning Tue, Sep 23, priced at $302 found 2 hours ago
Flights from Seattle (SEA) to Kailua-Kona (KOA)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kona Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
2688 mi
Average flight time
3 hours 10 mins

Frequently asked questions

How much is a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Kona Intl. Airport (KOA)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $277 from SEA to KOA. Affordable one-way tickets from $139 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to KOA with United Airlines?
United Airlines flights to Kailua-Kona are often cheaper in the quieter months of October and September. Whether you're in search of a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Kona Intl. Airport (KOA) with United Airlines?
For cheap United Airlines fares from Seattle - Tacoma Intl. Airport (SEA) to Kona Intl. Airport (KOA), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the cost. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Kona Intl. Airport (KOA)?
To find out if there's a direct journey from SEA to KOA with United Airlines or any other airlines, check the "Nonstop" filter when looking for tickets.
What is the earliest United Airlines flight from SEA to KOA?
Browse United Airlines's earliest flights from SEA to KOA by using our "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Kailua-Kona?
Get on a United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Kailua-Kona, and you'll most likely touch down at Kona Intl. Airport (KOA). This is the airline's primary hub in this destination.
Why fly with United Airlines from SEA to KOA?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to travel from SEA to KOA with United Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to Kona Intl. Airport (KOA)?
You can usually cancel or reschedule your flight, although there may be additional charges if you booked more than 24 hours ago. Need flexible options? Make use of our "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to alter your plans. To update your itinerary, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.