$837 Cheap Flights from Kumamoto (KMJ) to Washington (DCA)

View $837 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Kumamoto to Washington (KMJ-DCA)

Prices were available within the past 7 days and start at $837 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 Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA) cost?
Lock in a cheap one-way flight from $837 or cheap return flight from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)?
is the least expensive month to fly from KMJ to DCA. Traveling during an off-peak travel window is often the key to scoring lower fares.
What is the cheapest airline that flies from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest KMJ to DCA flight.
How many flights per day from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)?
You'll need to take a flight with a layover if you're traveling from Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from KMJ to DCA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)?
To land at Ronald Reagan Washington National Airport (DCA) on schedule, book a flight that takes off from Kumamoto Airport (KMJ) 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 Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA) last-minute?
Last-minute bookings from KMJ to DCA are usually more expensive. To secure the lowest rates, start looking for flights as soon as possible. That being said, if you can play around with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book a KMJ to DCA flight and hotel package?
Booking a KMJ to DCA flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our extensive range of accommodations 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 Kumamoto Airport (KMJ) to Ronald Reagan Washington National Airport (DCA)?
If you reserved your KMJ to DCA flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Kumamoto
Destination airport
Ronald Reagan Washington National
Distance
7170 mi

Book with confidence

Book with confidence

Kumamoto to Washington Flights

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

 

The best time to book a flight from Kumamoto to Washington

Sunday is one of the best days to book for cheap flights from Kumamoto 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 Kumamoto 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 Kumamoto to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $837 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 Kumamoto 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 Kumamoto 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.

 

Kumamoto to Washington Flights

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*Available to One Key members.