$629 Cheap Flights from Cairns (CNS) to Seattle (SEA)

View $629 flight on Tue, Feb 17, 2026Opens in a new window

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

Cheap Flights from Cairns to Seattle (CNS-SEA)

Prices were available within the past 7 days and start at $629 for one-way flights and $1,376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,376 Roundtrip, found 3 days ago
$1,376
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,376 found 3 days ago
Air Canada
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,377 Roundtrip, found 3 days ago
$1,377
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,377 found 3 days ago
Qantas Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,381 Roundtrip, found 3 days ago
$1,381
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,381 found 3 days ago
Qantas Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,383 Roundtrip, found 3 days ago
$1,383
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,383 found 3 days ago
Qantas Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,387 Roundtrip, found 3 days ago
$1,387
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,387 found 3 days ago
Qantas Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,387 Roundtrip, found 3 days ago
$1,387
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,387 found 3 days ago
Qantas Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,419 Roundtrip, found 3 days ago
$1,419
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,419 found 3 days ago
Fiji Airways
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,447 Roundtrip, found 3 days ago
$1,447
Roundtrip
found 3 days ago
Select Fiji Airways flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,447 found 3 days ago
Virgin Australia
Mon, Jul 27 - Mon, Aug 10
CNS
Cairns
SEA
Seattle
$1,498 Roundtrip, found 3 days ago
$1,498
Roundtrip
found 3 days ago
Select Virgin Australia flight, departing Mon, Jul 27 from Cairns to Seattle, returning Mon, Aug 10, priced at $1,498 found 3 days ago
Jetstar
Mon, Jan 12 - Sun, Jan 25
CNS
Cairns
SEA
Seattle
$1,524 Roundtrip, found 6 days ago
$1,524
Roundtrip
found 6 days ago
Select Jetstar flight, departing Mon, Jan 12 from Cairns to Seattle, returning Sun, Jan 25, priced at $1,524 found 6 days ago

Frequently asked questions

How much does a flight from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $629 or cheap return flight from $1,376 from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA)?
July is the cheapest month to fly from CNS to SEA. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from CNS to SEA. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CNS to SEA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on a range of factors, including 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 Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA)?
To land at Seattle - Tacoma Intl. Airport (SEA) on time, book a flight that leaves Cairns Intl. Airport (CNS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Seattle - Tacoma Intl. Airport (SEA) last-minute?
Waiting until right before your break to book a flight from CNS to SEA often results in higher prices. While you may come across some last-minute offers, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a CNS to SEA flight and hotel package?
Securing a CNS to SEA 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 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 Cairns Intl. Airport (CNS) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, it's possible to reschedule or cancel your CNS to SEA flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Cairns Intl.
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
$1,376
Distance
7160 mi

Book with confidence

Cairns to Seattle Flights

The cheapest times to fly from Cairns to Seattle

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

 

The best time to book a flight from Cairns to Seattle

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

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 Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $629 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 Seattle 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 Seattle 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.

 

Cairns to Seattle Flights

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*Available to One Key members.