$699 Cheap Flights from Washington (DCA) to Oita (OIT)

View $699 flight on Sun, Dec 28, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)

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Cheap Flights from Washington to Oita (DCA-OIT)

Prices were available within the past 7 days and start at $699 for one-way flights and $1,275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Nov 24 - Tue, Dec 23
DCA
Washington
OIT
Oita
$1,275 Roundtrip, found 1 day ago
$1,275
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Nov 24 from Washington to Oita, returning Tue, Dec 23, priced at $1,275 found 1 day ago
Air Canada
Mon, Nov 24 - Mon, Dec 22
DCA
Washington
OIT
Oita
$1,367 Roundtrip, found 15 hours ago
$1,367
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Mon, Nov 24 from Washington to Oita, returning Mon, Dec 22, priced at $1,367 found 15 hours ago
Japan Airlines
Wed, Dec 10 - Mon, Dec 22
DCA
Washington
OIT
Oita
$1,392 Roundtrip, just found
$1,392
Roundtrip
just found
Select Japan Airlines flight, departing Wed, Dec 10 from Washington to Oita, returning Mon, Dec 22, priced at $1,392 just found
Japan Airlines
Wed, Dec 10 - Mon, Dec 22
DCA
Washington
OIT
Oita
$1,392 Roundtrip, just found
$1,392
Roundtrip
just found
Select Japan Airlines flight, departing Wed, Dec 10 from Washington to Oita, returning Mon, Dec 22, priced at $1,392 just found
Japan Airlines
Mon, Nov 24 - Tue, Dec 23
DCA
Washington
OIT
Oita
$1,402 Roundtrip, found 1 day ago
$1,402
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Mon, Nov 24 from Washington to Oita, returning Tue, Dec 23, priced at $1,402 found 1 day ago
Japan Airlines
Mon, Nov 24 - Tue, Dec 23
DCA
Washington
OIT
Oita
$1,403 Roundtrip, found 1 day ago
$1,403
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Mon, Nov 24 from Washington to Oita, returning Tue, Dec 23, priced at $1,403 found 1 day ago
Japan Airlines
Mon, Nov 24 - Tue, Dec 23
DCA
Washington
OIT
Oita
$1,409 Roundtrip, found 1 day ago
$1,409
Roundtrip
found 1 day ago
Select Japan Airlines flight, departing Mon, Nov 24 from Washington to Oita, returning Tue, Dec 23, priced at $1,409 found 1 day ago
Air Canada
Mon, Nov 24 - Mon, Dec 22
DCA
Washington
OIT
Oita
$1,409 Roundtrip, found 15 hours ago
$1,409
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Mon, Nov 24 from Washington to Oita, returning Mon, Dec 22, priced at $1,409 found 15 hours ago
Japan Airlines
Wed, Dec 10 - Mon, Dec 22
DCA
Washington
OIT
Oita
$1,412 Roundtrip, just found
$1,412
Roundtrip
just found
Select Japan Airlines flight, departing Wed, Dec 10 from Washington to Oita, returning Mon, Dec 22, priced at $1,412 just found
All Nippon Airways
Mon, Nov 24 - Tue, Dec 23
DCA
Washington
OIT
Oita
$1,716 Roundtrip, found 1 day ago
$1,716
Roundtrip
found 1 day ago
Select All Nippon Airways flight, departing Mon, Nov 24 from Washington to Oita, returning Tue, Dec 23, priced at $1,716 found 1 day ago
Flights from Washington (DCA) to Oita (OIT)
Origin airport
Ronald Reagan Washington National
Destination airport
Oita
Airlines serving
All Nippon Airways, Japan Airlines
Roundtrip price
$1,274
Distance
7109 mi

Washington to Oita Flights

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

 

The best time to book a flight from Washington to Oita

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Oita in 2025. You can also book with separate airlines for your outbound and return journeys, from $699 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 Washington 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 Washington 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 Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT) cost?
Grab a cheap one-way flight from $699 or cheap return flight from $1,275 from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)?
The cheapest month to fly from DCA to OIT is November, when there's less demand. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to OIT flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)?
Direct flights from Ronald Reagan Washington National Airport (DCA) 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 select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to OIT?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)?
To touch down at Oita Airport (OIT) without delays, opt for a flight that takes off from Ronald Reagan Washington National Airport (DCA) 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 Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT) last-minute?
Booking your ticket from DCA to OIT right before your trip is generally more expensive. But if there's some wiggle room with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a DCA to OIT flight and hotel package?
Compared with arranging hotels and flights separately, booking a DCA to OIT flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of travel planning. Just secure your flights and choose from our extensive range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Oita Airport (OIT)?
In most instances, you can cancel or modify your DCA to OIT flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need more information, go to our Customer Service portal.

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*Available to One Key members.