What is the cheapest airline that flies from New South Wales to Seattle/Tacoma Intl?

Delta and United Airlines are the most popular carriers operating from New South Wales to Seattle/Tacoma Intl

Which airlines fly to Seattle?

Air Canada, United Airlines and Qantas Airways are the top three most popular airlines that fly to Seattle from New South Wales according to our data. Air Canada is the first choice among our users, with 51% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from New South Wales to Seattle/Tacoma Intl Airport?

Prices for flights from New South Wales to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights from New South Wales to Seattle/Tacoma Intl Airport?

As of August 2026, there are 6 operators available to choose from for flights from New South Wales to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from New South Wales to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from New South Wales to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$837 Cheap Flights from New South Wales to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from New South Wales to Seattle

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:20 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 45m1 stop Vancouver Intl

10:10 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m1 stop Vancouver Intl

$1,306Air Canada

Tue, 20 Oct - Tue, 27 Oct

08:00 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 05m2 stops Brisbane Vancouver Intl

19:05 - 08:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 30m1 stop Vancouver Intl

$1,326Air Canada

Tue, 20 Oct - Tue, 27 Oct

14:15 - 19:50SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 35m2 stops Nadi Los Angeles Los Angeles

06:10 - 22:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

46h 15m2 stops Los Angeles Los Angeles Nadi

$1,387Multiple Airlines

Sun, 11 Oct - Sun, 18 Oct

06:00 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 05m2 stops Brisbane Vancouver Intl

10:50 - 08:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

$1,408Multiple Airlines

Tue, 13 Oct - Tue, 20 Oct

10:10 - 22:37SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 27m1 stop Los Angeles Los Angeles

14:26 - 06:55SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 29m1 stop Dallas/Fort Worth

$1,541American Airlines

Tue, 20 Oct - Tue, 27 Oct

12:00 - 21:52SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 52m1 stop Dallas/Fort Worth

07:10 - 07:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles Los Angeles

$1,602Qantas Airways

Wed, 9 Sep - Tue, 22 Sep

12:00 - 19:48SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 48m1 stop Dallas/Fort Worth

07:10 - 07:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles Los Angeles

$1,602Qantas Airways

Wed, 9 Sep - Mon, 21 Sep

13:20 - 09:49SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

39h 29m2 stops San Francisco Denver Intl

09:02 - 06:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

26h 18m1 stop San Francisco

$1,744United Airlines

Thu, 24 Dec - Fri, 15 Jan

09:10 - 15:57SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 47m1 stop Los Angeles Los Angeles

07:10 - 07:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 55m1 stop Los Angeles Los Angeles

$1,751American Airlines

Thu, 24 Sep - Thu, 1 Oct

10:20 - 21:01SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 41m1 stop San Francisco

14:27 - 07:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 33m2 stops Denver Intl Los Angeles Los Angeles

$1,778United Airlines

Thu, 24 Sep - Thu, 1 Oct

Cheap last-minute flights

Enter your travel dates to find the best prices.

20:45 - 21:29SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 44m1 stop Honolulu

07:20 - 18:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

$1,538Alaska Airlines

Thu, 3 Sep - Wed, 16 Sep

20:45 - 06:11SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 26m1 stop Honolulu

07:20 - 18:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 30m1 stop Honolulu

$1,616Multiple Airlines

Tue, 1 Sep - Fri, 11 Sep

09:30 - 11:34SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 04m1 stop Los Angeles Los Angeles

05:00 - 07:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

33h 00m2 stops Denver Intl Los Angeles Los Angeles

$1,697United Airlines

Mon, 31 Aug - Sun, 13 Sep

09:30 - 17:42SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

25h 12m2 stops Los Angeles Los Angeles Denver Intl

16:45 - 07:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 15m1 stop Los Angeles Los Angeles

$1,697United Airlines

Mon, 31 Aug - Tue, 8 Sep

09:10 - 23:21SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

31h 11m1 stop Los Angeles Los Angeles

17:02 - 07:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles Los Angeles

$1,743Qantas Airways

Wed, 2 Sep - Sun, 20 Sep

09:10 - 23:21SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

31h 11m1 stop Los Angeles Los Angeles

15:42 - 06:55SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 13m1 stop Dallas/Fort Worth

$2,109American Airlines

Wed, 2 Sep - Sun, 20 Sep

07:30 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 35m2 stops Brisbane Vancouver Intl

19:15 - 07:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 05m1 stop Vancouver Intl

$2,218Air Canada

Thu, 3 Sep - Tue, 8 Sep

09:20 - 18:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 12m1 stop Vancouver Intl

10:50 - 07:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

$2,245Air Canada

Wed, 2 Sep - Sun, 20 Sep

09:10 - 23:21SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

31h 11m1 stop Los Angeles Los Angeles

15:42 - 06:55SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 13m1 stop Dallas/Fort Worth

$2,276American Airlines

Wed, 2 Sep - Sun, 20 Sep

09:15 - 14:50SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 35m2 stops Los Angeles Los Angeles Salt Lake City

13:24 - 06:50SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 26m2 stops Salt Lake City Los Angeles Los Angeles

$2,421Delta

Mon, 31 Aug - Thu, 10 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from New South Wales to Seattle

Our best Air Canada deals on New South Wales to Seattle flight tickets

Air Canada

20 Oct

SYD10:20Sydney Kingsford Smith

17h 45m

1 stop

SEA10:05Seattle/Tacoma Intl

27 Oct

SEA10:10Seattle/Tacoma Intl

28h 25m

1 stop

SYD08:35Sydney Kingsford Smith

$1,306

Air Canada

20 Oct

SYD08:00Sydney Kingsford Smith

20h 05m

2 stops

SEA10:05Seattle/Tacoma Intl

27 Oct

SEA19:05Seattle/Tacoma Intl

19h 30m

1 stop

SYD08:35Sydney Kingsford Smith

$1,326

Air Canada

27 Sept

SYD09:20Sydney Kingsford Smith

21h 57m

1 stop

SEA14:17Seattle/Tacoma Intl

12 Oct

SEA19:15Seattle/Tacoma Intl

22h 25m

2 stops

SYD11:40Sydney Kingsford Smith

$1,368

American Airlines flights from New South Wales to Seattle

Our best American Airlines deals on New South Wales to Seattle flight tickets

American Airlines

20 Oct

SYD10:10Sydney Kingsford Smith

30h 27m

1 stop

SEA22:37Seattle/Tacoma Intl

27 Oct

SEA14:26Seattle/Tacoma Intl

22h 29m

1 stop

SYD06:55Sydney Kingsford Smith

$1,541

American Airlines

2 Sept

SYD09:10Sydney Kingsford Smith

31h 11m

1 stop

SEA23:21Seattle/Tacoma Intl

20 Sept

SEA15:42Seattle/Tacoma Intl

22h 13m

1 stop

SYD06:55Sydney Kingsford Smith

$2,109

American Airlines

2 Sept

SYD09:10Sydney Kingsford Smith

31h 11m

1 stop

SEA23:21Seattle/Tacoma Intl

20 Sept

SEA15:42Seattle/Tacoma Intl

22h 13m

1 stop

SYD06:55Sydney Kingsford Smith

$2,268

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:20-10:05

1 stop17h 45m

Seattle/Tacoma Intl

Tue 27/10

10:10-08:35

1 stop28h 25m

$1,306

Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

08:00-10:05

2 stops20h 05m

Seattle/Tacoma Intl

Tue 27/10

19:05-08:35

1 stop19h 30m

$1,326

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 11/10

14:15-19:50

2 stops23h 35m

Seattle/Tacoma Intl

Sun 18/10

06:10-22:25

2 stops46h 15m

$1,387

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 13/10

06:00-10:05

2 stops22h 05m

Seattle/Tacoma Intl

Tue 20/10

10:50-08:20

1 stop27h 30m

$1,408

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Tue 20/10

10:10-22:37

1 stop30h 27m

Seattle/Tacoma Intl

Tue 27/10

14:26-06:55

1 stop22h 29m

$1,541

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 9/9

12:00-21:52

1 stop26h 52m

Seattle/Tacoma Intl

Tue 22/9

07:10-07:05

1 stop30h 55m

$1,602

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 9/9

12:00-19:48

1 stop24h 48m

Seattle/Tacoma Intl

Mon 21/9

07:10-07:05

1 stop30h 55m

$1,602

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 24/12

13:20-09:49

2 stops39h 29m

Seattle/Tacoma Intl

Fri 15/1

09:02-06:20

1 stop26h 18m

$1,744

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 24/9

09:10-15:57

1 stop23h 47m

Seattle/Tacoma Intl

Thu 1/10

07:10-07:05

1 stop30h 55m

$1,751

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 24/9

10:20-21:01

1 stop27h 41m

Seattle/Tacoma Intl

Thu 1/10

14:27-07:00

2 stops23h 33m

$1,778

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from New South Wales to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Seattle?

The month of March is, on average, the cheapest month to fly to Seattle from New South Wales, with most prices found around $1,393. If you are unable to visit Seattle during the month of March, then departing from New South Wales during the month August is also very affordable. Most momondo users find prices during this month for around $1,398.

How far in advance should I book a flight from New South Wales to Seattle?

You are more likely to see cheaper flights to Seattle from New South Wales when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $1,538 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from New South Wales for as low as $952 on momondo.

Can stopping save me money on New South Wales to Seattle flights?

You could potentially save up to 13% on your flight if you consider stops on a New South Wales to Seattle flight.

Cheap New South Wales to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from New South Wales to Seattle

Best price found	$837
Fastest flight time	17h 44m
Direct flights	None

The best one-way flight to Seattle from New South Wales in the past 72 hours is $837. The best return flight deal from New South Wales to Seattle found on momondo in the last 72 hours is $1,306.

The fastest flight from New South Wales to Seattle takes 17h 44m

There are no direct flights from New South Wales to Seattle. There are no popular flight routes from New South Wales to Seattle.

Search flight deals

Frequently asked questions about flying from New South Wales to Seattle

When did momondo last update prices for flights from New South Wales to Seattle/Tacoma Intl Airport?
Prices for flights from New South Wales to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from New South Wales to Seattle/Tacoma Intl Airport?
As of August 2026, there are 6 operators available to choose from for flights from New South Wales to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from New South Wales to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from New South Wales to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from New South Wales to Seattle

Compare and see reviews for airlines that fly from New South Wales to Seattle with momondo

Airline	Rating	Free cancellation	Price
Air Canada	PriceFrom $1,116	Free cancellation	Rating 7.1 11,556 reviews	Search Air Canada flights
Hawaiian Airlines	PriceFrom $1,132	Free cancellation	Rating 7.8 2,816 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $1,169	Free cancellation	Rating 7.8 8,537 reviews	Search Delta flights
Qantas Airways	PriceFrom $1,184	Free cancellation	Rating 7.5 1,087 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,187	Free cancellation	Rating 7.4 10,139 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,230	Free cancellation	Rating 7.1 12,016 reviews	Search American Airlines flights

Leavenworth

SeaTac

Why use momondo?

Why should I use momondo to find a flight deal from New South Wales to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from New South Wales to Seattle . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from New South Wales to Seattle with flexible booking policies on momondo?

Flights from New South Wales to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from New South Wales to Seattle?

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

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

Yes momondo offers price alerts on flights to Seattle from New South Wales. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Tue 29/9

Tue 6/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from New South Wales

Complete your trip

Feeling lucky

Airports servicing Washington

Spokane Airport

Cheap flights from New South Wales to Seattle from $837

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New South Wales to Seattle departing on 4/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from New South Wales to Seattle

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from New South Wales to Seattle

Our best Air Canada deals on New South Wales to Seattle flight tickets

American Airlines flights from New South Wales to Seattle

Our best American Airlines deals on New South Wales to Seattle flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from New South Wales to Seattle that are best for you.

See travel insights to Seattle from

How to get the cheapest flight ticket from New South Wales to Seattle

What is the cheapest month to fly to Seattle?

How far in advance should I book a flight from New South Wales to Seattle?

Can stopping save me money on New South Wales to Seattle flights?

What is the cheapest airline that flies from New South Wales to Seattle/Tacoma Intl?

Which airlines fly to Seattle?

Cheap New South Wales to Seattle flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from New South Wales to Seattle

Best airlines flying from New South Wales to Seattle

Compare and see reviews for airlines that fly from New South Wales to Seattle with momondo

Travelling to a place near Seattle?

Why use momondo?

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington

Fly your favourite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

Popular Cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from New South Wales

According to popular flight searches on momondo this year

Complete your trip to Seattle

Explore popular destinations other users love

According to popular flight searches on momondo this year