$258 Cheap Flights from Seattle (SEA) to Hilo (ITO)

View $258 flight on Mon, May 19, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Seattle to Hilo (SEA-ITO)

Prices were available within the past 7 days and start at $258 for one-way flights and $491 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Thu, Sep 4 - Thu, Sep 11
SEA
Seattle
ITO
Hawaii Island
$491 Roundtrip, found 4 days ago
$491
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from Seattle to Hawaii Island, returning Thu, Sep 11, priced at $491 found 4 days ago
Southwest Airlines
Thu, May 8 - Mon, May 12
SEA
Seattle
ITO
Hawaii Island
$529 Roundtrip, found 6 days ago
$529
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, May 8 from Seattle to Hawaii Island, returning Mon, May 12, priced at $529 found 6 days ago
Southwest Airlines
Mon, Sep 15 - Fri, Sep 19
SEA
Seattle
ITO
Hawaii Island
$530 Roundtrip, found 3 days ago
$530
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Mon, Sep 15 from Seattle to Hawaii Island, returning Fri, Sep 19, priced at $530 found 3 days ago
Southwest Airlines
Thu, Sep 4 - Thu, Sep 11
SEA
Seattle
ITO
Hawaii Island
$532 Roundtrip, found 4 days ago
$532
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from Seattle to Hawaii Island, returning Thu, Sep 11, priced at $532 found 4 days ago
Southwest Airlines
Wed, May 7 - Mon, May 19
SEA
Seattle
ITO
Hawaii Island
$539 Roundtrip, found 6 hours ago
$539
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Wed, May 7 from Seattle to Hawaii Island, returning Mon, May 19, priced at $539 found 6 hours ago
Southwest Airlines
Thu, Oct 2 - Thu, Oct 9
SEA
Seattle
ITO
Hawaii Island
$543 Roundtrip, found 5 days ago
$543
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Thu, Oct 2 from Seattle to Hawaii Island, returning Thu, Oct 9, priced at $543 found 5 days ago
Hawaiian Airlines
Tue, Apr 29 - Sun, May 4
SEA
Seattle
ITO
Hawaii Island
$555 Roundtrip, found 2 days ago
$555
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Apr 29 from Seattle to Hawaii Island, returning Sun, May 4, priced at $555 found 2 days ago
Alaska Airlines
Thu, Jun 5 - Mon, Jun 9
SEA
Seattle
ITO
Hawaii Island
$561 Roundtrip, found 5 days ago
$561
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Jun 5 from Seattle to Hawaii Island, returning Mon, Jun 9, priced at $561 found 5 days ago
United
Sun, May 11 - Tue, May 13
SEA
Seattle
ITO
Hawaii Island
$632 Roundtrip, found 6 days ago
$632
Roundtrip
found 6 days ago
Select United flight, departing Sun, May 11 from Seattle to Hawaii Island, returning Tue, May 13, priced at $632 found 6 days ago
Delta
Tue, Feb 3 - Wed, Feb 4
SEA
Seattle
ITO
Hawaii Island
$887 Roundtrip, found 3 days ago
$887
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Feb 3 from Seattle to Hawaii Island, returning Wed, Feb 4, priced at $887 found 3 days ago
Flights from Seattle (SEA) to Hilo (ITO)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Hilo Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$491
Distance
2650 mi

Seattle to Hilo Flights

The cheapest times to fly from Seattle to Hilo

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

The best time to book a flight from Seattle to Hilo

Sunday is one of the best days to book for cheap flights from Seattle to Hilo: 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 Seattle to Hilo

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 Seattle to Hilo in 2025. You can also book with separate airlines for your outbound and return journeys, from $258 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 Seattle to Hilo 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 Seattle to Hilo 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.

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO) cost?
Discover the latest flight deals from SEA to ITO by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SEA to ITO?
The cheapest flights from SEA to ITO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SEA to ITO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SEA to ITO. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO)?
There are no daily direct flights from Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be soaring above the clouds in no time at all.
What day of the week has the most flights from SEA to ITO?
Typically you’ll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can change depending on the time of year, 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 Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO)?
To land at Hilo Intl. Airport (ITO) without delays, opt for a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO) last-minute?
Waiting until just before your trip to book your flight from SEA to ITO generally means paying more. While you may find some last-minute offers, they’re not always guaranteed. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a SEA to ITO flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to ITO flight and hotel package with Expedia could lead to significant savings. What’s more, having it all in one place takes the hassle out of travel planning. Simply secure your flights and choose from our wide range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Hilo Intl. Airport (ITO)?
Typically, it’s possible to cancel or reschedule your SEA to ITO flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.