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

United Airlines and Delta 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 48% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 7 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 November 2026, there are 7 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.

$680 Cheap Flights from New South Wales to Seattle in 2026/27

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.

13:20 - 18:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 12m1 stop San Francisco

13:17 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 03m1 stop San Francisco

$1,355United Airlines

Thu, 21 Jan - Sun, 31 Jan

11:20 - 11:42SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 22m1 stop Los Angeles

13:17 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 03m1 stop San Francisco

$1,355United Airlines

Wed, 20 Jan - Sun, 31 Jan

11:20 - 11:22SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 02m1 stop Los Angeles

08:45 - 08:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 20m2 stops San Francisco Los Angeles

$1,381American Airlines

Wed, 10 Mar - Tue, 30 Mar

11:20 - 16:29SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 09m2 stops Los Angeles San Francisco

16:12 - 08:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 53m1 stop Los Angeles

$1,381American Airlines

Mon, 8 Mar - Tue, 30 Mar

10:40 - 12:59SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m1 stop Los Angeles

14:40 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 50m1 stop Los Angeles

$1,387Delta

Wed, 20 Jan - Sun, 31 Jan

10:40 - 14:26SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 46m1 stop Los Angeles

09:25 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 05m2 stops Salt Lake City Los Angeles

$1,387Delta

Wed, 20 Jan - Sun, 31 Jan

11:10 - 16:47SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 37m1 stop Los Angeles

13:20 - 06:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 05m1 stop San Francisco

$1,403Qantas Airways

Wed, 27 Jan - Wed, 3 Feb

21:40 - 23:59SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 19m1 stop Honolulu

07:00 - 19:45SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

$1,446Multiple Airlines

Fri, 20 Nov - Fri, 27 Nov

21:40 - 21:36SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 56m2 stops Honolulu Kahului

07:00 - 19:45SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

$1,520Multiple Airlines

Thu, 4 Feb - Mon, 8 Feb

21:25 - 09:15SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 50m1 stop San Francisco

14:22 - 06:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles

$1,546Qantas Airways

Fri, 29 Jan - Fri, 5 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:40 - 10:05SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 25m1 stop Los Angeles

17:52 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 38m1 stop Los Angeles

$1,387Delta

Mon, 9 Nov - Sun, 22 Nov

10:40 - 14:55SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 15m2 stops Los Angeles Salt Lake City

07:15 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 15m1 stop Los Angeles

$1,387Delta

Mon, 9 Nov - Sun, 22 Nov

11:50 - 14:39SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 49m1 stop San Francisco

16:39 - 09:05SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 26m1 stop Los Angeles

$1,400Lufthansa

Mon, 9 Nov - Sun, 22 Nov

11:10 - 13:00SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 50m1 stop Los Angeles

16:45 - 10:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 35m2 stops Los Angeles Brisbane

$1,731Qantas Airways

Mon, 9 Nov - Sun, 22 Nov

14:05 - 22:11SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

27h 06m1 stop Dallas/Fort Worth

09:46 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 14m2 stops San Francisco Los Angeles

$1,732American Airlines

Mon, 9 Nov - Sun, 22 Nov

20:30 - 21:20SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 50m2 stops Honolulu Los Angeles

09:46 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 14m2 stops San Francisco Los Angeles

$1,732American Airlines

Mon, 9 Nov - Sun, 22 Nov

14:00 - 19:28SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

24h 28m2 stops Nadi Los Angeles

16:45 - 12:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 50m2 stops Los Angeles Nadi

$1,882Multiple Airlines

Mon, 9 Nov - Sun, 22 Nov

11:20 - 18:22SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 02m1 stop Vancouver Intl

10:10 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 25m1 stop Vancouver Intl

$16,847Air Canada

Fri, 13 Nov - Thu, 19 Nov

11:50 - 12:20SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 30m1 stop San Francisco

09:05 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

29h 15m1 stop San Francisco

$20,329Virgin Australia

Thu, 12 Nov - Fri, 20 Nov

11:10 - 16:00SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 50m1 stop Los Angeles

18:03 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 57m1 stop Los Angeles

$23,671Qantas Airways

Sat, 14 Nov - Fri, 27 Nov

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United Airlines flights from New South Wales to Seattle

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

United Airlines

20 Jan

SYD11:20Sydney Kingsford Smith

19h 22m

1 stop

SEA11:42Seattle/Tacoma Intl

31 Jan

SEA13:17Seattle/Tacoma Intl

25h 03m

1 stop

SYD09:20Sydney Kingsford Smith

$1,355

United Airlines

3 Dec

SYD11:50Sydney Kingsford Smith

25h 34m

2 stops

SEA18:24Seattle/Tacoma Intl

25 Jan

SEA19:28Seattle/Tacoma Intl

18h 52m

1 stop

SYD09:20Sydney Kingsford Smith

$1,409

United Airlines

3 Dec

SYD11:50Sydney Kingsford Smith

19h 30m

1 stop

SEA12:20Seattle/Tacoma Intl

25 Jan

SEA05:00Seattle/Tacoma Intl

30h 20m

1 stop

SYD06:20Sydney Kingsford Smith

$1,413

Alaska Airlines flights from New South Wales to Seattle

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

Alaska Airlines

22 Apr

SYD20:45Sydney Kingsford Smith

26h 15m

1 stop

SEA06:00Seattle/Tacoma Intl

13 May

SEA08:05Seattle/Tacoma Intl

17h 45m

1 stop

SYD18:50Sydney Kingsford Smith

$1,526

Alaska Airlines

20 Apr

SYD20:45Sydney Kingsford Smith

26h 15m

1 stop

SEA06:00Seattle/Tacoma Intl

15 May

SEA08:05Seattle/Tacoma Intl

17h 45m

1 stop

SYD18:50Sydney Kingsford Smith

$1,617

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 21/1

13:20-18:32

1 stop24h 12m

Seattle/Tacoma Intl

Sun 31/1

13:17-09:20

1 stop25h 03m

$1,355

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

11:20-11:42

1 stop19h 22m

Seattle/Tacoma Intl

Sun 31/1

13:17-09:20

1 stop25h 03m

$1,355

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 10/3

11:20-11:22

1 stop19h 02m

Seattle/Tacoma Intl

Tue 30/3

08:45-08:05

2 stops29h 20m

$1,381

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 8/3

11:20-16:29

2 stops24h 09m

Seattle/Tacoma Intl

Tue 30/3

16:12-08:05

1 stop21h 53m

$1,381

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

10:40-12:59

1 stop21h 19m

Seattle/Tacoma Intl

Sun 31/1

14:40-08:30

1 stop22h 50m

$1,387

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 20/1

10:40-14:26

1 stop22h 46m

Seattle/Tacoma Intl

Sun 31/1

09:25-08:30

2 stops28h 05m

$1,387

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 27/1

11:10-16:47

1 stop24h 37m

Seattle/Tacoma Intl

Wed 3/2

13:20-06:25

1 stop22h 05m

$1,403

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

21:40-23:59

1 stop21h 19m

Seattle/Tacoma Intl

Fri 27/11

07:00-19:45

1 stop17h 45m

$1,446

Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 4/2

21:40-21:36

2 stops18h 56m

Seattle/Tacoma Intl

Mon 8/2

07:00-19:45

1 stop17h 45m

$1,520

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 29/1

21:25-09:15

1 stop30h 50m

Seattle/Tacoma Intl

Fri 5/2

14:22-06:25

1 stop21h 03m

$1,546

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 November is, on average, the cheapest month to fly to Seattle from New South Wales, with most prices found around $1,361. If you are unable to visit Seattle during the month of November, then departing from New South Wales during the month August is also very affordable. Most momondo users find prices during this month for around $1,459.

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 $1,622 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 $1,460 on momondo.

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

You could potentially save up to 9% 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	$680
Fastest flight time	18h 45m
Direct flights	None

The best one-way flight to Seattle from New South Wales in the past 72 hours is $680. The best return flight deal from New South Wales to Seattle found on momondo in the last 72 hours is $1,355.

The fastest flight from New South Wales to Seattle takes 18h 45m

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 November 2026, there are 7 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
Virgin Australia	PriceFrom $943	Free cancellation	Rating 7.6 484 reviews	Search Virgin Australia flights
Delta	PriceFrom $1,002	Free cancellation	Rating 7.8 8,699 reviews	Search Delta flights
United Airlines	PriceFrom $1,079	Free cancellation	Rating 7.3 10,470 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,212	Free cancellation	Rating 7.1 11,876 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,283	Free cancellation	Rating 7.0 12,228 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $1,337	Free cancellation	Rating 7.5 1,123 reviews	Search Qantas Airways flights
Hawaiian Airlines	PriceFrom $1,582	Free cancellation	Rating 7.8 2,803 reviews	Search Hawaiian Airlines flights

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.

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Cheap flights from New South Wales to Seattle from $680

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 27/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from New South Wales to Seattle

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

Alaska Airlines flights from New South Wales to Seattle

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

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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.

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

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According to popular flight searches on momondo this year

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