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$520+ Cheap flights from Seattle (SEA) to Cairns (CNS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CNS
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Seattle to Cairns

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Cairns (CNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$1,074
(Air Canada)

One-way from

$520
(American Airlines)
From Seattle/Tacoma Intl to Cairns
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One-way flight from Seattle/Tacoma Intl to Cairns
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Find flight deals from Seattle to Cairns

Cheapest flights from Seattle to Cairns
Explore the most affordable flight options available from Seattle to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Air Canada deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:15 pmSEA - CNS
2 stops25h 30mMultiple Airlines
Sat 10/256:00 pmCNS - SEA
2 stops37h 26mMultiple Airlines
Deal found 8/16$1,074
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/110:05 amSEA - CNS
2 stops34h 55mAir Canada
Wed 11/56:00 amCNS - SEA
2 stops31h 16mAir Canada
Deal found 8/17$1,132
This Priceline deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:23 pmSEA - CNS
2 stops28h 32mQantas Airways
Tue 10/712:40 pmCNS - SEA
2 stops24h 27mQantas Airways
Deal found 8/16$1,148
This Air Canada deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:15 pmSEA - CNS
2 stops25h 20mMultiple Airlines
Thu 9/116:00 amCNS - SEA
2 stops29h 36mMultiple Airlines
Deal found 8/18$1,181
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:59 pmSEA - CNS
2 stops35h 51mMultiple Airlines
Sun 11/96:40 amCNS - SEA
2 stops33h 20mMultiple Airlines
Deal found 8/15$1,196
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:59 pmSEA - CNS
2 stops31h 16mMultiple Airlines
Sun 11/96:40 amCNS - SEA
2 stops33h 20mMultiple Airlines
Deal found 8/15$1,197
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/112:30 pmSEA - CNS
3 stops33h 25mUnited Airlines
Wed 11/56:00 amCNS - SEA
2 stops30h 25mUnited Airlines
Deal found 8/18$1,361
This Ovago deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:35 amSEA - CNS
2 stops34h 10mAir New Zealand
Sat 10/255:20 pmCNS - SEA
3 stops42h 56mAir New Zealand
Deal found 8/17$1,511

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Cairns that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Seattle to Cairns that are best for you.

Fly from

Seattle

Fly to

Cairns

Route

Depart

Return

Price

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sun 10/19

7:15 pm-1:45 pm

2 stops25h 30m

Cairns

Sat 10/25

6:00 pm-2:26 pm

2 stops37h 26m

$1,074

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 11/1

10:05 am-2:00 pm

2 stops34h 55m

Cairns

Wed 11/5

6:00 am-7:16 pm

2 stops31h 16m

$1,132

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 9/6

7:15 pm-3:55 pm

2 stops27h 40m

Cairns

Thu 9/11

6:00 am-2:16 pm

2 stops25h 16m

$1,132

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Tue 9/30

3:23 pm-12:55 pm

2 stops28h 32m

Cairns

Tue 10/7

12:40 pm-8:07 pm

2 stops24h 27m

$1,148

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 9/6

7:15 pm-1:35 pm

2 stops25h 20m

Cairns

Thu 9/11

6:00 am-6:36 pm

2 stops29h 36m

$1,181

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Wed 9/24

5:59 pm-10:50 pm

2 stops35h 51m

Cairns

Sun 11/9

6:40 am-10:00 pm

2 stops33h 20m

$1,196

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Thu 9/25

5:59 pm-6:15 pm

2 stops31h 16m

Cairns

Sun 11/9

6:40 am-10:00 pm

2 stops33h 20m

$1,197

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Mon 9/8

3:23 pm-12:55 pm

2 stops28h 32m

$520

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 9/27

6:05 pm-12:55 pm

2 stops25h 50m

$550

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 9/27

6:05 pm-4:40 pm

3 stops29h 35m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 13 results
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Best time to book a flight from Seattle to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Cairns

What is the cheapest time of day to fly from SEA to CNS?

Find hourly flight availability from Seattle to Cairns. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Seattle to Cairns, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 10% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Cairns. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Cairns?

    There are many flights that can get you from Seattle to Cairns in 34h 55m. Fly via Air Canada to get the fastest option. Seattle and Cairns are separated by a distance of 7156 mi.

  • Can I find deals for flights from Seattle to Cairns that include hotel bookings?

    Yes. In addition to deals on Seattle to Cairns flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Cairns?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Cairns.

  • Can I find deals for business class flights from Seattle to Cairns?

    Yes. Cheapflights offers flight deals from Seattle to Cairns by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Cairns?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Cairns (average of $1,158). Flying from Seattle to Cairns in December is currently the most expensive (average of $1,882). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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