The cheapest times to fly from DCA to KMQ are

  • January 15th to March 25th
  • August 20th to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DCA to KMQ is late September. Prices can be as high as $2746 for Sunday flights during late December, or as low as $1340 for Thursday flights around late September.


When to Fly to Komatsu

Flying from Washington, DC (DCA) to Komatsu (KMQ) will usually cost between $1361 to $2484 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late September with an average ticket price of $1402. Due to high demand the most expensive time to fly is late December, with an average price of $2534. Planning your trip to low-cost times can easily save you $1132 on economy flights and even more on first-class flights. Generally, any price below $2147 can be considered a good price for a round-trip DCA to KMQ flight.

See below for a graph of average weekly prices for the DCA to KMQ route. All prices are for round-trip tickets in USD.

DCA to KMQ Flight Prices

Compared to other flights, the DCA to KMQ flight is more expensive than the average and costs more than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.2, which is below average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to fly to KMQ, and Tuesday the cheapest day to fly back into DCA. Sundays are the most expensive days to fly to Komatsu, and Saturdays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $228 (11%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $1944. Return trip prices are from the KMQ to DCA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DCA to KMQ can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 15 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from DCA to KMQ while comparing.

Destination alternative #1: Osaka International Airport (ITM) in Osaka

  • 124 miles (200 km) away from KMQ
  • Usually 38.59% less expensive than KMQ
  • 2-layover flights available

See DCA to ITM flights

Destination alternative #2: Chubu Centrair International Airport (NGO) in Nagoya

  • 108 miles (174 km) away from KMQ
  • Usually 30.09% less expensive than KMQ
  • 1-layover flights available

See DCA to NGO flights

Destination alternative #3: Toyama Airport (TOY) in Toyama

  • 47 miles (76 km) away from KMQ
  • Usually 11.25% less expensive than KMQ
  • 2-layover flights available

See DCA to TOY flights


Flight Hacking DCA to KMQ

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from DCA to KMQ — but Champion Traveler does!

Hack #1: Shanghai (DCA > PVG > KMQ)

  • Price for both tickets: $1183
  • Average savings: $965 (44.92%)

See DCA to PVG flights

Hack #2: Taipei (DCA > TPE > KMQ)

  • Price for both tickets: $1214
  • Average savings: $934 (43.48%)

See DCA to TPE flights

Hack #3: New York, NY (DCA > JFK > KMQ)

  • Price for both tickets: $1283
  • Average savings: $864 (40.24%)

See DCA to JFK flights


Flight Questions Answered

Still have questions about flying from DCA to KMQ? We’ve got answers.

Which airlines fly this route?

You can find 11 major airlines flying this route most often: Air Canada, American, ANA, British Airways, Cathay Pacific, China Eastern, Delta, Garuda Indonesia, JAL, Korean Air, United, and potentially more during busy seasons.

How far away is it from Komatsu Airport to Ronald Reagan Washington National Airport?

The distance between the two airports is roughly 6817 miles or 10971 kilometers.

How long does it take to fly from DCA to KMQ?

The real-world flight time for a nonstop DCA to KMQ flight is about 13 hour 15 minutes.

How many flights go between Washington, DC and Komatsu?

It depends on the day of the week and the date, but a typical day might have around 18 available flights from DCA to KMQ.


Airport Location Info


Departing Airport

Origination codeDCA
Origination airport nameRonald Reagan Washington National Airport
CityWashington, DC
Countrythe United States

Return Airport

Destination codeKMQ
Destination airport nameKomatsu Airport


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.