$542 Cheap Flights from Portland (PDX) to Oita (OIT)

View $542 flight on Wed, Dec 31, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Oita Airport (OIT)

Cheap Flights from Portland to Oita (PDX-OIT)

Prices were available within the past 7 days and start at $542 for one-way flights and $1,266 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,266 Roundtrip, found 6 days ago
$1,266
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,266 found 6 days ago
All Nippon Airways
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,275 Roundtrip, found 6 days ago
$1,275
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,275 found 6 days ago
United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,282 Roundtrip, found 6 days ago
$1,282
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,282 found 6 days ago
United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,289 Roundtrip, found 6 days ago
$1,289
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,289 found 6 days ago
All Nippon Airways
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,291 Roundtrip, found 6 days ago
$1,291
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,291 found 6 days ago
All Nippon Airways
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,298 Roundtrip, found 6 days ago
$1,298
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,298 found 6 days ago
United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,426 Roundtrip, found 6 days ago
$1,426
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,426 found 6 days ago
United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,434 Roundtrip, found 6 days ago
$1,434
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,434 found 6 days ago
All Nippon Airways
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,436 Roundtrip, found 6 days ago
$1,436
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,436 found 6 days ago
United
Fri, Aug 14 - Mon, Aug 24
PDX
Portland
OIT
Oita
$1,442 Roundtrip, found 6 days ago
$1,442
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 14 from Portland to Oita, returning Mon, Aug 24, priced at $1,442 found 6 days ago

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Oita Airport (OIT) cost?
Secure a cheap one-way flight from $542 or cheap return flight from $1,266 from Portland Intl. Airport (PDX) to Oita Airport (OIT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Oita Airport (OIT)?
The cheapest month to fly from PDX to OIT is August, when there's less demand. Off-peak months are often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Oita Airport (OIT)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PDX to OIT flight.
How many flights per day from Portland Intl. Airport (PDX) to Oita Airport (OIT)?
You'll have to book a flight with a layover if you're traveling from Portland Intl. Airport (PDX) to Oita Airport (OIT). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from PDX to OIT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Oita Airport (OIT)?
To touch down at Oita Airport (OIT) on schedule, opt for a flight that leaves Portland Intl. Airport (PDX) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Portland Intl. Airport (PDX) to Oita Airport (OIT) last-minute?
Holding off until right before your break to book a ticket from PDX to OIT generally means paying more. Although you may find some last-minute deals, there's no guarantee. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a PDX to OIT flight and hotel package?
You can save money by securing a PDX to OIT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Oita Airport (OIT)?
If you booked your PDX to OIT flight within the last 24 hours, you may be able to cancel or modify 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, visit our Customer Service portal if you want more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Oita
Roundtrip price
$1,265
Distance
5273 mi

Book with confidence

Portland to Oita Flights

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

 

The best time to book a flight from Portland to Oita

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to Oita in 2025. You can also book with separate airlines for your outbound and return journeys, from $542 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 Portland 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 Portland 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.

 

Portland to Oita Flights

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*Available to One Key members.