$154 Cheap Flights from Hilo (ITO) to Seattle (SEA)

View $154 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from Hilo Intl. Airport (ITO) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Hilo to Seattle (ITO-SEA)

Prices were available within the past 7 days and start at $154 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Jan 8 - Wed, Jan 14
ITO
Hawaii Island
SEA
Seattle
$288 Roundtrip, found 4 hours ago
$288
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Thu, Jan 8 from Hawaii Island to Seattle, returning Wed, Jan 14, priced at $288 found 4 hours ago
Hawaiian Airlines
Mon, Oct 27 - Tue, Nov 11
ITO
Hawaii Island
SEA
Seattle
$288 Roundtrip, found 4 hours ago
$288
Roundtrip
found 4 hours ago
Select Hawaiian Airlines flight, departing Mon, Oct 27 from Hawaii Island to Seattle, returning Tue, Nov 11, priced at $288 found 4 hours ago
Alaska Airlines
Wed, Feb 18 - Thu, Mar 5
ITO
Hawaii Island
SEA
Seattle
$298 Roundtrip, found 15 hours ago
$298
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Wed, Feb 18 from Hawaii Island to Seattle, returning Thu, Mar 5, priced at $298 found 15 hours ago
Alaska Airlines
Mon, Oct 20 - Mon, Oct 27
ITO
Hawaii Island
SEA
Seattle
$298 Roundtrip, found 3 days ago
$298
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Oct 20 from Hawaii Island to Seattle, returning Mon, Oct 27, priced at $298 found 3 days ago
Alaska Airlines
Mon, Jan 12 - Sun, Feb 1
ITO
Hawaii Island
SEA
Seattle
$299 Roundtrip, found 4 days ago
$299
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Jan 12 from Hawaii Island to Seattle, returning Sun, Feb 1, priced at $299 found 4 days ago
Alaska Airlines
Fri, Jan 16 - Sun, Feb 1
ITO
Hawaii Island
SEA
Seattle
$310 Roundtrip, found 4 days ago
$310
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Jan 16 from Hawaii Island to Seattle, returning Sun, Feb 1, priced at $310 found 4 days ago
Alaska Airlines
Fri, Jan 9 - Wed, Jan 14
ITO
Hawaii Island
SEA
Seattle
$318 Roundtrip, found 4 hours ago
$318
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Fri, Jan 9 from Hawaii Island to Seattle, returning Wed, Jan 14, priced at $318 found 4 hours ago
Southwest Airlines
Sat, Feb 28 - Sun, Mar 1
ITO
Hawaii Island
SEA
Seattle
$368 Roundtrip, found 1 day ago
$368
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Feb 28 from Hawaii Island to Seattle, returning Sun, Mar 1, priced at $368 found 1 day ago
United
Wed, Mar 4 - Thu, Mar 5
ITO
Hawaii Island
SEA
Seattle
$618 Roundtrip, found 4 days ago
$618
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 4 from Hawaii Island to Seattle, returning Thu, Mar 5, priced at $618 found 4 days ago
Delta
Mon, Nov 17 - Tue, Nov 18
ITO
Hawaii Island
SEA
Seattle
$729 Roundtrip, found 2 days ago
$729
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Nov 17 from Hawaii Island to Seattle, returning Tue, Nov 18, priced at $729 found 2 days ago

Find the cheapest month to fly from Hilo (ITO) to Seattle (SEA)

September is typically the cheapest month to fly

From $276 - $758 per traveler.

Frequently asked questions

How much does a flight from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $154 or cheap return flight from $288 from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA)?
The cheapest month to fly from ITO to SEA is January, when there's less demand. Off-peak season is usually when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline flying from ITO to SEA, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA)?
There aren't any daily nonstop flights available from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from ITO to SEA?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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.
Is it cheaper to buy a plane ticket from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until just before your trip to book a ticket from ITO to SEA generally means paying more. While you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for the best chance of snagging a bargain.
Is it cheaper to book an ITO to SEA flight and hotel package?
Securing an ITO to SEA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Hilo Intl. Airport (ITO) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your ITO to SEA flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond 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 want more information.

Travel information

Travel information

Origin airport
Hilo Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$288
Distance
2650 mi

Book with confidence

Book with confidence

Hilo to Seattle Flights

The cheapest times to fly from Hilo 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 Hilo to Seattle are during the month of January. You can find some of the cheapest flights from Hilo to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Hilo to Seattle

Sunday is one of the best days to book for cheap flights from Hilo 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 Hilo 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 Hilo to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $154 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 Hilo 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 Hilo 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.

 

Hilo to Seattle Flights

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