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Cheap flights from Seattle to Cairns from $580

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Cairns departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:37 pm - 11:05 am
SEA
-
CNS
28h 28m
2 stops
American Airlines Logo
6:00 am - 4:00 pm
CNS
-
SEA
28h 00m
2 stops
$1,179American Airlines
Mon, Oct 26 - Wed, Nov 11
American Airlines Logo
5:02 pm - 12:55 pm
SEA
-
CNS
26h 53m
2 stops
American Airlines Logo
1:55 pm - 11:21 pm
CNS
-
SEA
26h 26m
2 stops
$1,366American Airlines
Fri, Aug 21 - Fri, Aug 28
Qantas Airways Logo
3:20 pm - 7:30 pm
SEA
-
CNS
35h 10m
2 stops
Qantas Airways Logo
11:20 am - 10:37 pm
CNS
-
SEA
28h 17m
2 stops
$1,550Qantas Airways
Sat, Oct 17 - Wed, Oct 21
Qantas Airways Logo
3:20 pm - 7:30 pm
SEA
-
CNS
35h 10m
2 stops
Qantas Airways Logo
11:20 am - 10:37 pm
CNS
-
SEA
28h 17m
2 stops
$1,551Qantas Airways
Sat, Oct 17 - Wed, Oct 21
Multiple Airlines Logo
5:04 pm - 11:20 am
SEA
-
CNS
25h 16m
2 stops
Multiple Airlines Logo
6:20 pm - 7:10 am
CNS
-
SEA
54h 50m
1 stop
$1,622Multiple Airlines
Mon, Oct 26 - Wed, Nov 11
Multiple Airlines Logo
5:02 pm - 12:55 pm
SEA
-
CNS
26h 53m
2 stops
Multiple Airlines Logo
11:20 am - 8:39 pm
CNS
-
SEA
26h 19m
3 stops
$1,648Multiple Airlines
Fri, Aug 21 - Fri, Aug 28
Air New Zealand Logo
5:28 pm - 4:55 pm
SEA
-
CNS
30h 27m
3 stops
Air New Zealand Logo
6:00 am - 9:57 pm
CNS
-
SEA
33h 57m
3 stops
$1,883Air New Zealand
Mon, Oct 26 - Wed, Nov 11
Multiple Airlines Logo
1:20 pm - 4:30 am
SEA
-
CNS
22h 10m
1 stop
Multiple Airlines Logo
6:45 am - 5:51 pm
CNS
-
SEA
52h 06m
2 stops
$2,021Multiple Airlines
Fri, Aug 21 - Fri, Aug 28
Singapore Airlines Logo
10:15 am - 11:20 pm
SEA
-
CNS
44h 05m
2 stops
Singapore Airlines Logo
6:15 pm - 8:45 am
CNS
-
SEA
31h 30m
1 stop
$2,103Singapore Airlines
Sat, Oct 17 - Wed, Oct 21
Singapore Airlines Logo
10:15 am - 11:20 pm
SEA
-
CNS
44h 05m
2 stops
Singapore Airlines Logo
6:15 pm - 8:45 am
CNS
-
SEA
31h 30m
1 stop
$2,104Singapore Airlines
Sat, Oct 17 - Wed, Oct 21

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Qantas Airways flights from Seattle to Cairns

Our best Qantas Airways deals on Seattle to Cairns flight tickets
Qantas Airways
Oct 17
SEA3:20 pmSeattle/Tacoma Intl
35h 10m
2 stops
CNS7:30 pmCairns
Oct 21
CNS11:20 amCairns
28h 17m
2 stops
SEA10:37 pmSeattle/Tacoma Intl
$1,550
Qantas Airways
Oct 17
SEA3:20 pmSeattle/Tacoma Intl
35h 10m
2 stops
CNS7:30 pmCairns
Oct 21
CNS11:20 amCairns
28h 17m
2 stops
SEA10:37 pmSeattle/Tacoma Intl
$1,551

Singapore Airlines flights from Seattle to Cairns

Our best Singapore Airlines deals on Seattle to Cairns flight tickets
Singapore Airlines
Oct 17
SEA10:15 amSeattle/Tacoma Intl
44h 05m
2 stops
CNS11:20 pmCairns
Oct 21
CNS6:15 pmCairns
31h 30m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$2,103
Singapore Airlines
Oct 17
SEA10:15 amSeattle/Tacoma Intl
44h 05m
2 stops
CNS11:20 pmCairns
Oct 21
CNS6:15 pmCairns
31h 30m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$2,104
Singapore Airlines
Aug 21
SEA10:15 amSeattle/Tacoma Intl
37h 45m
1 stop
CNS5:00 pmCairns
Aug 28
CNS6:15 pmCairns
31h 30m
1 stop
SEA8:45 amSeattle/Tacoma Intl
$2,501

momondo 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, momondo users made 832,500 searches. Data last updated July 26, 2026.
Use the filters below to find and compare flights from Seattle to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Mon 10/26

1:37 pm-11:05 am

2 stops28h 28m

Cairns

Wed 11/11

6:00 am-4:00 pm

2 stops28h 00m

$1,179

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Fri 8/21

5:02 pm-12:55 pm

2 stops26h 53m

Cairns

Fri 8/28

1:55 pm-11:21 pm

2 stops26h 26m

$1,366

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 10/17

3:20 pm-7:30 pm

2 stops35h 10m

Cairns

Wed 10/21

11:20 am-10:37 pm

2 stops28h 17m

$1,550

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 10/17

3:20 pm-7:30 pm

2 stops35h 10m

Cairns

Wed 10/21

11:20 am-10:37 pm

2 stops28h 17m

$1,551

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Mon 10/26

5:04 pm-11:20 am

2 stops25h 16m

Cairns

Wed 11/11

6:20 pm-7:10 am

1 stop54h 50m

$1,622
Quickest round-trip

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Fri 8/21

5:02 pm-12:55 pm

2 stops26h 53m

Cairns

Fri 8/28

11:20 am-8:39 pm

3 stops26h 19m

$1,648

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Mon 10/26

5:28 pm-4:55 pm

3 stops30h 27m

Cairns

Wed 11/11

6:00 am-9:57 pm

3 stops33h 57m

$1,883

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Fri 8/21

1:20 pm-4:30 am

1 stop22h 10m

Cairns

Fri 8/28

6:45 am-5:51 pm

2 stops52h 06m

$2,021

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 10/17

10:15 am-11:20 pm

2 stops44h 05m

Cairns

Wed 10/21

6:15 pm-8:45 am

1 stop31h 30m

$2,103

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sat 10/17

10:15 am-11:20 pm

2 stops44h 05m

Cairns

Wed 10/21

6:15 pm-8:45 am

1 stop31h 30m

$2,104

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Seattle to Cairns

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Cairns according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Cairns (SEA to CNS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Cairns

Fastest flight time

25h 30m

Direct flights

None
The fastest flight from Seattle to Cairns takes 25h 30m
There are no direct flights from Seattle to Cairns. There are no popular flight routes from Seattle to Cairns.
Search flight deals

Frequently asked questions about flying from Seattle to Cairns

  • How far is Seattle/Tacoma Intl to Cairns by plane?

    The distance between Seattle/Tacoma Intl and Cairns is about 7157.5 mi. Typically, this will take 25h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Cairns Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Cairns Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Cairns Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Cairns Airport.

  • What documentation or ID do you need to fly to Cairns Airport?

    The necessary travel and health documents for your Cairns Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Seattle to Cairns

  • How do I get Price Alerts for flights from Seattle to Cairns?

    Confirm your travel details to search for the latest offers for flights from Seattle to Cairns. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Cairns with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Traveling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Port Douglas
Mission Beach
Palm Cove
Trinity Beach

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Cairns?

Finding the right flight to Cairns from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cairns quick and easy, saving you time and money.

Can I find flights from Seattle to Cairns with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cairns from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Cairns?

momondo provides multiple filters to help you find the best flight to Cairns from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Cairns right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cairns, momondo offers a useful price alert feature which will track prices for flights to Cairns from Seattle and alert you when they change.

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