$512 Cheap Flights from Washington (DCA) to Cairns (CNS)

View $512 flight on Sat, Feb 7, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)

Cheap Flights from Washington to Cairns (DCA-CNS)

Prices were available within the past 7 days and start at $512 for one-way flights and $1,081 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Dec 8 - Mon, Dec 15
DCA
Washington
CNS
Cairns
$1,081 Roundtrip, found 5 days ago
$1,081
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Dec 8 from Washington to Cairns, returning Mon, Dec 15, priced at $1,081 found 5 days ago
Alaska Airlines
Mon, Dec 8 - Mon, Dec 15
DCA
Washington
CNS
Cairns
$1,082 Roundtrip, found 5 days ago
$1,082
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Dec 8 from Washington to Cairns, returning Mon, Dec 15, priced at $1,082 found 5 days ago
Qantas Airways
Mon, Dec 8 - Mon, Dec 15
DCA
Washington
CNS
Cairns
$1,094 Roundtrip, found 5 days ago
$1,094
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Mon, Dec 8 from Washington to Cairns, returning Mon, Dec 15, priced at $1,094 found 5 days ago
Qantas Airways
Mon, Dec 8 - Mon, Dec 15
DCA
Washington
CNS
Cairns
$1,095 Roundtrip, found 5 days ago
$1,095
Roundtrip
found 5 days ago
Select Qantas Airways flight, departing Mon, Dec 8 from Washington to Cairns, returning Mon, Dec 15, priced at $1,095 found 5 days ago
Qantas Airways
Sat, Dec 6 - Sat, Dec 13
DCA
Washington
CNS
Cairns
$1,106 Roundtrip, found 6 days ago
$1,106
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Sat, Dec 6 from Washington to Cairns, returning Sat, Dec 13, priced at $1,106 found 6 days ago
Qantas Airways
Wed, Dec 31 - Tue, Jan 13
DCA
Washington
CNS
Cairns
$1,124 Roundtrip, found 4 days ago
$1,124
Roundtrip
found 4 days ago
Select Qantas Airways flight, departing Wed, Dec 31 from Washington to Cairns, returning Tue, Jan 13, priced at $1,124 found 4 days ago
Qantas Airways
Sat, Dec 6 - Sat, Dec 13
DCA
Washington
CNS
Cairns
$1,128 Roundtrip, found 6 days ago
$1,128
Roundtrip
found 6 days ago
Select Qantas Airways flight, departing Sat, Dec 6 from Washington to Cairns, returning Sat, Dec 13, priced at $1,128 found 6 days ago
United
Sat, Nov 8 - Sat, Nov 15
DCA
Washington
CNS
Cairns
$1,260 Roundtrip, found 4 days ago
$1,260
Roundtrip
found 4 days ago
Select United flight, departing Sat, Nov 8 from Washington to Cairns, returning Sat, Nov 15, priced at $1,260 found 4 days ago
American Airlines
Mon, Dec 8 - Sun, Dec 21
DCA
Washington
CNS
Cairns
$1,267 Roundtrip, found 4 days ago
$1,267
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Dec 8 from Washington to Cairns, returning Sun, Dec 21, priced at $1,267 found 4 days ago
Fiji Airways
Sat, Apr 11 - Sat, Apr 25
DCA
Washington
CNS
Cairns
$1,366 Roundtrip, found 4 days ago
$1,366
Roundtrip
found 4 days ago
Select Fiji Airways flight, departing Sat, Apr 11 from Washington to Cairns, returning Sat, Apr 25, priced at $1,366 found 4 days ago

Alternative airports near Cairns

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cairns Intl. CNS. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $2,186
CNS
Cairns Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $2,186
Flights from Washington (DCA) to Cairns (CNS)
Origin airport
Ronald Reagan Washington National
Destination airport
Cairns Intl.
Airlines serving
Air Canada, American Airlines, Cathay Pacific, Japan Airlines, Qantas Airways, United
Roundtrip price
$1,080
Distance
9451 mi

Washington to Cairns Flights

The cheapest times to fly from Washington to Cairns

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

 

The best time to book a flight from Washington to Cairns

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

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 Washington to Cairns in 2025. You can also book with separate airlines for your outbound and return journeys, from $512 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 Washington to Cairns 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 Washington to Cairns 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.

 

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS) cost?
Secure a cheap one-way flight from $512 or cheap return flight from $1,081 from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS) 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 Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)?
December is the least expensive month to fly from DCA to CNS. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest DCA to CNS flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)?
There aren't any daily direct flights from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from DCA to CNS?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various 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 Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)?
Book a flight from Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS) that leaves before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**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 Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS) last-minute?
Booking your plane ticket from DCA to CNS right before your getaway is generally more expensive. However, if you're flexible with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a DCA to CNS flight and hotel package?
Opting for a DCA to CNS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of stays and then add activities, flights and car rentals 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 Ronald Reagan Washington National Airport (DCA) to Cairns Intl. Airport (CNS)?
If you reserved your DCA to CNS flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.