$629 Cheap Flights from Komatsu (KMQ) to Washington (IAD)

View $629 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Komatsu to Washington (KMQ-IAD)

Prices were available within the past 7 days and start at $629 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 Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $629 or cheap return flight from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD) 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 Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)?
is the most affordable month to fly from KMQ to IAD. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from KMQ to IAD. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)?
There are no daily direct flights from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from KMQ to IAD?
Friday is generally 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 time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)?
To touch down at Washington Dulles Intl. Airport (IAD) without delays, book a flight that takes off from Komatsu Airport (KMQ) before 3 PM. The chance 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 Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from KMQ to IAD just before your trip is typically more expensive. However, if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a KMQ to IAD flight and hotel package?
Securing a KMQ to IAD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our impressive 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 Komatsu Airport (KMQ) to Washington Dulles Intl. Airport (IAD)?
In most instances, you're able to reschedule or cancel your KMQ to IAD flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further information, visit our Customer Service portal.

Travel information

Origin airport
Komatsu
Destination airport
Washington Dulles Intl.
Distance
6800 mi

Book with confidence

Komatsu to Washington Flights

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

 

The best time to book a flight from Komatsu to Washington

Sunday is one of the best days to book for cheap flights from Komatsu 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 Komatsu 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 Komatsu to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $629 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 Komatsu 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 Komatsu 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.

 

Komatsu to Washington Flights

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*Available to One Key members.