$1,632 Cheap Flights from Okayama (OKJ) to Washington (IAD)

View $1,632 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Okayama to Washington (OKJ-IAD)

Prices were available within the past 7 days and start at $1,632 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $1,632 or cheap return flight from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD) 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 Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)?
is the most affordable month to fly from OKJ to IAD. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline that'll fly you from OKJ to IAD, 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 Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from OKJ to IAD?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on time, book a flight that leaves from Okayama Airport (OKJ) before 3 PM. The chance 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 Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute fares from OKJ to IAD are typically more expensive. To secure the cheapest rates, start searching for flights well in advance. That said, if you can play around with your travel dates, you may find a cheap fare right before your trip.
Is it cheaper to book an OKJ to IAD flight and hotel package?
Opting for an OKJ to IAD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Okayama Airport (OKJ) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can reschedule or cancel your OKJ to IAD flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, head to our Customer Service portal.

Travel information

Origin airport
Okayama
Destination airport
Washington Dulles Intl.
Distance
6964 mi

Book with confidence

Okayama to Washington Flights

The cheapest times to fly from Okayama to Washington

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

 

The best time to book a flight from Okayama to Washington

Sunday is one of the best days to book for cheap flights from Okayama to Washington: 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 Okayama to Washington

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 Okayama to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,632 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 Okayama to Washington 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 Okayama to Washington 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.

 

Okayama to Washington Flights

Explore a world of travel with Expedia

*Available to One Key members.