The cheapest times to fly from DCA to CNS are

  • January 29th to March 25th
  • July 30th to December 2nd (except the week of October 15th)

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 CNS is mid August. Prices can be as high as $4181 for Saturday flights during mid December, or as low as $1305 for Tuesday flights around mid August.


When to Fly to Cairns

Flying from Washington, DC (DCA) to Cairns (CNS) will usually cost between $1330 to $2667 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid August with an average ticket price of $1339. Due to high demand the most expensive time to fly is mid December, with an average price of $3131. Planning your trip to low-cost times can easily save you $1792 on economy flights and even more on first-class flights. Generally, any price below $1677 can be considered a good price for a round-trip DCA to CNS flight.

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

DCA to CNS Flight Prices

Compared to other flights, the DCA to CNS 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 $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to Cairns, and Fridays are the most expensive days to return to Washington. Selecting flights on the least expensive days could save you up to $282 (15%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1626. Return trip prices are from the CNS 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 CNS can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 17 hour 60 minutes may not be realistic.


Flight Hacking DCA to CNS

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 CNS — but Champion Traveler does!

Hack #1: Singapore (DCA > SIN > CNS)

  • Price for both tickets: $1405
  • Average savings: $272 (16.19%)

See DCA to SIN flights

Hack #2: Los Angeles, CA (DCA > LAX > CNS)

  • Price for both tickets: $1446
  • Average savings: $231 (13.78%)

See DCA to LAX flights

Hack #3: Hong Kong (DCA > HKG > CNS)

  • Price for both tickets: $1471
  • Average savings: $206 (12.29%)

See DCA to HKG flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 13 major airlines flying this route most often: Air Canada, Air New Zealand, Alaska, American, ANA, Cathay Pacific, China Southern, Delta, Fiji Airways, JAL, Qantas, United, Virgin Australia, and potentially more during busy seasons.

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

The distance between the two airports is roughly 9451 miles or 15210 kilometers.

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

The real-world flight time for a nonstop DCA to CNS flight is about 17 hour 60 minutes.

How many flights go between Washington, DC and Cairns?

It depends on the day of the week and the date, but a typical day might have around 42 available flights from DCA to CNS.


Airport Location Info


Departing Airport

Origination code DCA
Origination airport name Ronald Reagan Washington National Airport
City Washington, DC
Country the United States
Latitude 38.9
Longitude -77

Return Airport

Destination code CNS
Destination airport name Cairns International Airport
City Cairns
Country Australia
Latitude -16.9
Longitude 145.8


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.