Cheap Flights from Seattle (SEA) to Cairns (CNS)

View AU$662 flight on Tue, 31 Mar. 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Cairns Intl. Airport (CNS)

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Cheap Flights from Seattle (SEA) to Cairns (CNS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from Seattle to Cairns route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Cairns Intl.
Distance
11456 km

Your quick guide to flights from Seattle to Cairns

Pick up great flights from Seattle to Cairns

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seattle to Cairns. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Cairns that take around hours.

Find cheap flights from Seattle to Cairns

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Cairns around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Cairns is normally in .

Reasons to book your flight from Seattle to Cairns with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Cairns across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Cairns right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Cairns Intl. Airport (CNS)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip journey from SEA to Cairns Airport was . Fares this cheap don't last long, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to CNS?
We get that things crop up unexpectedly, so we've made it as hassle-free as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to Cairns Intl. Airport (CNS) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to CNS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to CNS?
You'll have 11 500 kilometres to cover on the long-haul SeaTac to Cairns route. Wear comfortable clothes and consider taking earplugs and a sleep mask.
Which airlines fly direct from Sea-Tac Airport to Cairns Airport?
You won't find any airlines flying directly between SEA and Cairns Intl. Airport (CNS), so be ready to make at least one stop on your journey. A layover, whether short or long, can be a nice way to break up a trip!
Are Sea-Tac Airport to Cairns Intl. Airport (CNS) flight tickets cheaper when they're purchased at the last minute?
Airline tickets from SEA to Cairns Intl. Airport (CNS) are available up to a year prior to departure on Expedia. And although you may occasionally nab a fantastic last-minute deal, it's never a sure thing. Also, booking your flights in advance means you'll have more choices — and you can avoid getting caught in the dreaded middle seat! We frequently update our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

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