A turquoise lagoon with a white sandbar surrounded by clear blue water.

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

View AU$989 flight on Sun, 30 Aug 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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.

United
Mon, 31 Aug - Sun, 6 Sept
SEA
Seattle
CNS
Cairns
AU$1,740 Return, found 6 days ago
AU$1,740
Return
found 6 days ago
Select United flight, departing Mon, 31 Aug from Seattle to Cairns, returning Sun, 6 Sept, priced at AU$1,740 found 6 days ago
United
Mon, 31 Aug - Sun, 6 Sept
SEA
Seattle
CNS
Cairns
AU$1,748 Return, found 6 days ago
AU$1,748
Return
found 6 days ago
Select United flight, departing Mon, 31 Aug from Seattle to Cairns, returning Sun, 6 Sept, priced at AU$1,748 found 6 days ago
United
Sun, 30 Aug - Sat, 5 Sept
SEA
Seattle
CNS
Cairns
AU$1,751 Return, found 6 days ago
AU$1,751
Return
found 6 days ago
Select United flight, departing Sun, 30 Aug from Seattle to Cairns, returning Sat, 5 Sept, priced at AU$1,751 found 6 days ago
United
Sun, 30 Aug - Sat, 5 Sept
SEA
Seattle
CNS
Cairns
AU$1,758 Return, found 6 days ago
AU$1,758
Return
found 6 days ago
Select United flight, departing Sun, 30 Aug from Seattle to Cairns, returning Sat, 5 Sept, priced at AU$1,758 found 6 days ago
United
Sun, 30 Aug - Sat, 5 Sept
SEA
Seattle
CNS
Cairns
AU$1,761 Return, found 6 days ago
AU$1,761
Return
found 6 days ago
Select United flight, departing Sun, 30 Aug from Seattle to Cairns, returning Sat, 5 Sept, priced at AU$1,761 found 6 days ago
United
Sun, 30 Aug - Sat, 5 Sept
SEA
Seattle
CNS
Cairns
AU$1,767 Return, found 6 days ago
AU$1,767
Return
found 6 days ago
Select United flight, departing Sun, 30 Aug from Seattle to Cairns, returning Sat, 5 Sept, priced at AU$1,767 found 6 days ago
Air Canada
Sun, 25 Oct - Fri, 30 Oct
SEA
Seattle
CNS
Cairns
AU$1,900 Return, found 2 days ago
AU$1,900
Return
found 2 days ago
Select Air Canada flight, departing Sun, 25 Oct from Seattle to Cairns, returning Fri, 30 Oct, priced at AU$1,900 found 2 days ago
Alaska Airlines
Sun, 30 Aug - Sat, 5 Sept
SEA
Seattle
CNS
Cairns
AU$1,983 Return, found 6 days ago
AU$1,983
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 30 Aug from Seattle to Cairns, returning Sat, 5 Sept, priced at AU$1,983 found 6 days ago
Qantas Airways
Sat, 17 Oct - Sat, 24 Oct
SEA
Seattle
CNS
Cairns
AU$2,021 Return, found 2 days ago
AU$2,021
Return
found 2 days ago
Select Qantas Airways flight, departing Sat, 17 Oct from Seattle to Cairns, returning Sat, 24 Oct, priced at AU$2,021 found 2 days ago
American Airlines
Sun, 18 Oct - Sat, 24 Oct
SEA
Seattle
CNS
Cairns
AU$2,041 Return, found 2 days ago
AU$2,041
Return
found 2 days ago
Select American Airlines flight, departing Sun, 18 Oct from Seattle to Cairns, returning Sat, 24 Oct, priced at AU$2,041 found 2 days ago

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) cost?
You can find one-way and return flights from SEA to CNS with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to CNS ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
The cheapest months to fly from SEA to CNS are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
Enter SEA to CNS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
Delta is one of the cheapest airlines offering connecting return flights from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS), with prices starting from around AU$2233 for flights that can be booked for departure within the next year. These flights typically include a layover in Los Angeles Intl. (LAX). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
There are approximately 21 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS). Some common connection points include Los Angeles Intl. (LAX), San Francisco Intl. (SFO), and Vancouver Intl. (YVR).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS) typically departs around 12:10 AM local time. This service is offered by EVA Airways and Qantas Airways, but it's a seasonal service active only in February. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
You'll generally find the most flights from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS) on a Sunday, with around 41 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Alaska Airlines, United, and Air Canada. Sundays offer notably more flight options compared to other days of the week, so you might find it easier to secure a flight that fits your schedule.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS) are in the early afternoon, from 12pm to 3pm. Many major carriers, including Delta, United and American Airlines, offer flights during this window. Many travellers prefer this time as it allows for a relaxed morning before heading to the airport, and you'll arrive in Cairns at a reasonable hour.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
There are no nonstop flights from Seattle - Tacoma Intl. (SEA) to Cairns Intl. (CNS). The distance between these two airports is approximately 11,524 kilometres. If you're looking for the quickest way to get there, flights with one stop typically take around 22 hours. Flights with two or more stops usually take a bit longer, averaging about 24 hours. Keep in mind that these are average travel times, and your actual flight duration can vary depending on the specific route, layover times, and even factors like wind patterns.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
Yes, you can fly business class between SEA and CNS. Airlines that offer business class service on this route include:
  • Emirates
  • Cathay Pacific
  • Air Canada
  • Alaska Airlines
  • Qatar Airways
  • American Airlines
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cairns, QLD (CNS) from Seattle, WA (SEA)?
If you're planning to travel to Cairns from Seattle - Tacoma Intl. (SEA), you can fly directly into Cairns Intl. (CNS). Some flights may connect through major hubs like Los Angeles Intl. (LAX), San Francisco Intl. (SFO), or Vancouver Intl. (YVR) before reaching Cairns. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cairns, QLD (CNS-Cairns Intl.) 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 this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Cairns Intl.
Airlines serving
Air Canada, Japan Airlines, Qantas Airways
Return price
AU$1,739
Distance
11456 km

Book with confidence

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 AU$1,740 to AU$2,041, 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 August.

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.

Your quick guide to flights from Seattle to Cairns

Explore a world of travel with Expedia

*Available to Expedia members.