$909 Cheap Flights from Cairns (CNS) to Washington (IAD)

View $909 flight on Sun, Feb 15, 2026Opens in a new window

Popular airlines from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Cairns to Washington (CNS-IAD)

Prices were available within the past 7 days and start at $909 for one-way flights and $1,591 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,591 Roundtrip, found 3 days ago
$1,591
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,591 found 3 days ago
Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,591 Roundtrip, found 3 days ago
$1,591
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,591 found 3 days ago
Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,606 Roundtrip, found 3 days ago
$1,606
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,606 found 3 days ago
Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,649 Roundtrip, found 3 days ago
$1,649
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,649 found 3 days ago
Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,649 Roundtrip, found 3 days ago
$1,649
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,649 found 3 days ago
Air Canada
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$1,664 Roundtrip, found 3 days ago
$1,664
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $1,664 found 3 days ago
Virgin Australia
Sat, Feb 21 - Sat, Mar 21
CNS
Cairns
IAD
Washington
$1,821 Roundtrip, found 3 days ago
$1,821
Roundtrip
found 3 days ago
Select Virgin Australia flight, departing Sat, Feb 21 from Cairns to Washington, returning Sat, Mar 21, priced at $1,821 found 3 days ago
Qantas Airways
Sat, Feb 21 - Sat, Mar 21
CNS
Cairns
IAD
Washington
$1,839 Roundtrip, found 3 days ago
$1,839
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Sat, Feb 21 from Cairns to Washington, returning Sat, Mar 21, priced at $1,839 found 3 days ago
Qatar Airways
Wed, Apr 1 - Sat, Apr 18
CNS
Cairns
IAD
Washington
$2,345 Roundtrip, found 3 days ago
$2,345
Roundtrip
found 3 days ago
Select Qatar Airways flight, departing Wed, Apr 1 from Cairns to Washington, returning Sat, Apr 18, priced at $2,345 found 3 days ago
Emirates
Sat, Feb 21 - Sat, Mar 21
CNS
Cairns
IAD
Washington
$2,385 Roundtrip, found 3 days ago
$2,385
Roundtrip
found 3 days ago
Select Emirates flight, departing Sat, Feb 21 from Cairns to Washington, returning Sat, Mar 21, priced at $2,385 found 3 days ago
Flights from Cairns (CNS) to Washington (IAD)
Origin airport
Cairns Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
$1,590
Distance
9428 mi

Cairns to Washington Flights

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

 

The best time to book a flight from Cairns to Washington

Sunday is one of the best days to book for cheap flights from Cairns 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 Cairns 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 Cairns to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $909 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 Cairns 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 Cairns 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.

 

Frequently asked questions

How much does a flight from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $909 or cheap return flight from $1,591 from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)?
April is the least expensive month to fly from CNS to IAD. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest CNS to IAD flight.
How many flights per day from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)?
You'll need to catch a flight with a layover if you're traveling from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from CNS to IAD?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)?
Opt for a flight from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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 Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from CNS to IAD are generally more expensive. To secure the cheapest rates, start looking for flights as early as possible. That being said, if you can play around with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a CNS to IAD flight and hotel package?
You'll generally save money by securing a CNS to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Cairns Intl. Airport (CNS) to Washington Dulles Intl. Airport (IAD)?
Usually, it's possible to cancel or reschedule your CNS to IAD flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.