$357 Cheap Flights from Seattle (SEA) to Oita (OIT)

View $357 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Oita Airport (OIT)

Cheap Flights from Seattle to Oita (SEA-OIT)

Prices were available within the past 7 days and start at $357 for one-way flights and $770 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Nov 26 - Wed, Dec 3
SEA
Seattle
OIT
Oita
$770 Roundtrip, found 1 day ago
$770
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Nov 26 from Seattle to Oita, returning Wed, Dec 3, priced at $770 found 1 day ago
American Airlines
Tue, Nov 25 - Wed, Dec 3
SEA
Seattle
OIT
Oita
$780 Roundtrip, found 1 day ago
$780
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Nov 25 from Seattle to Oita, returning Wed, Dec 3, priced at $780 found 1 day ago
American Airlines
Tue, Nov 25 - Tue, Dec 2
SEA
Seattle
OIT
Oita
$892 Roundtrip, found 1 day ago
$892
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Nov 25 from Seattle to Oita, returning Tue, Dec 2, priced at $892 found 1 day ago
United
Tue, Nov 25 - Thu, Nov 27
SEA
Seattle
OIT
Oita
$973 Roundtrip, found 1 day ago
$973
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 25 from Seattle to Oita, returning Thu, Nov 27, priced at $973 found 1 day ago
American Airlines
Wed, Nov 26 - Tue, Dec 2
SEA
Seattle
OIT
Oita
$1,047 Roundtrip, found 1 day ago
$1,047
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Nov 26 from Seattle to Oita, returning Tue, Dec 2, priced at $1,047 found 1 day ago
All Nippon Airways
Mon, Nov 24 - Thu, Nov 27
SEA
Seattle
OIT
Oita
$1,139 Roundtrip, found 1 day ago
$1,139
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Mon, Nov 24 from Seattle to Oita, returning Thu, Nov 27, priced at $1,139 found 1 day ago
All Nippon Airways
Mon, Nov 24 - Wed, Dec 3
SEA
Seattle
OIT
Oita
$1,291 Roundtrip, found 1 day ago
$1,291
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Mon, Nov 24 from Seattle to Oita, returning Wed, Dec 3, priced at $1,291 found 1 day ago
United
Tue, Nov 25 - Fri, Nov 28
SEA
Seattle
OIT
Oita
$1,316 Roundtrip, found 1 day ago
$1,316
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 25 from Seattle to Oita, returning Fri, Nov 28, priced at $1,316 found 1 day ago
Japan Airlines
Sun, Nov 23 - Wed, Dec 3
SEA
Seattle
OIT
Oita
$1,341 Roundtrip, found 1 day ago
$1,341
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Sun, Nov 23 from Seattle to Oita, returning Wed, Dec 3, priced at $1,341 found 1 day ago
Delta
Tue, Dec 23 - Tue, Jan 6
SEA
Seattle
OIT
Oita
$2,098 Roundtrip, found 6 hours ago
$2,098
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Dec 23 from Seattle to Oita, returning Tue, Jan 6, priced at $2,098 found 6 hours ago

Alternative airports near Oita

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Oita Airport OIT. Cheapest and Closest option available. Average driving time to city center is 47 minutes. Flights from $780
OIT
Oita Airport
CheapestClosest
Average driving time to city center47 min
Flights from $780
Flights from Seattle (SEA) to Oita (OIT)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Oita
Airlines serving
All Nippon Airways, Hawaiian Airlines, Japan Airlines
Roundtrip price
$770
Distance
5213 mi

Seattle to Oita Flights

The cheapest times to fly from Seattle to Oita

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

 

The best time to book a flight from Seattle to Oita

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

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 Oita in 2025. You can also book with separate airlines for your outbound and return journeys, from $357 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 Oita 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 Oita 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 Oita Airport (OIT) cost?
Get a cheap one-way flight from $357 or cheap return flight from $770 from Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT)?
Planning your trip for November is a great way to save, as it's the cheapest month for flights between SEA and OIT. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SEA to OIT flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to OIT?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline 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 Oita Airport (OIT)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT) route, travel before 3 PM. Later departures are 22% more likely to be canceled.**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 Oita Airport (OIT) last-minute?
Last-minute bookings from SEA to OIT are usually more expensive. To lock in the lowest rates, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, it's possible to land a cheap ticket right before your journey.
Is it cheaper to book a SEA to OIT flight and hotel package?
Opting for a SEA to OIT flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our impressive range of accommodations and then add car rentals, activities 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 Seattle - Tacoma Intl. Airport (SEA) to Oita Airport (OIT)?
If you reserved your SEA to OIT flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

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*Available to One Key members.