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 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 October 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.

$647 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.

11:10 - 16:07SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 57m1 stop Los Angeles

07:21 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

30h 39m1 stop Los Angeles

$1,307American Airlines

Tue, 24 Nov - Tue, 1 Dec

11:10 - 16:07SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 57m1 stop Los Angeles

15:00 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

47h 00m2 stops Phoenix Sky Harbor Intl Los Angeles

$1,307American Airlines

Wed, 25 Nov - Sat, 5 Dec

10:40 - 20:09SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

28h 29m1 stop Los Angeles

20:15 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

41h 15m1 stop Los Angeles

$1,314Delta

Mon, 23 Nov - Sun, 29 Nov

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

$1,314Delta

Wed, 20 Jan - Sun, 31 Jan

09:15 - 13:25SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 10m1 stop Houston George Bush Intcntl

23:59 - 07:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

36h 01m1 stop Houston George Bush Intcntl

$1,314United Airlines

Wed, 25 Nov - Tue, 1 Dec

11:20 - 11:14SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 54m1 stop Los Angeles

19:30 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 50m1 stop San Francisco

$1,314United Airlines

Mon, 23 Nov - Wed, 2 Dec

11:15 - 00:42SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

32h 27m2 stops Los Angeles Chicago O'Hare Intl

12:11 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 49m1 stop Los Angeles

$1,352British Airways

Sat, 21 Nov - Sun, 29 Nov

11:10 - 13:08SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

20h 58m1 stop Los Angeles

12:11 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 49m1 stop Los Angeles

$1,358British Airways

Sat, 21 Nov - Sun, 29 Nov

11:10 - 00:20SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

32h 10m1 stop Los Angeles

13:35 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 25m1 stop Los Angeles

$1,452Qantas Airways

Sun, 22 Nov - Fri, 4 Dec

11:10 - 11:03SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 53m1 stop Los Angeles

15:55 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 05m1 stop Los Angeles

$1,452Qantas Airways

Fri, 20 Nov - Thu, 3 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:40 - 14:50SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 10m1 stop Los Angeles

19:55 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

65h 35m2 stops Salt Lake City Los Angeles

$1,317Delta

Mon, 2 Nov - Fri, 27 Nov

10:40 - 14:50SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 10m1 stop Los Angeles

19:55 - 08:30SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

65h 35m2 stops Salt Lake City Los Angeles

$1,317Delta

Tue, 3 Nov - Fri, 27 Nov

10:55 - 11:14SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 19m1 stop Los Angeles

13:16 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

25h 04m1 stop San Francisco

$1,317United Airlines

Mon, 2 Nov - Wed, 25 Nov

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

19h 30m1 stop San Francisco

15:35 - 09:20SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

22h 45m1 stop San Francisco

$1,317United Airlines

Tue, 3 Nov - Sun, 22 Nov

21:40 - 06:15SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 35m2 stops Honolulu Kahului

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

17h 45m1 stop Honolulu

$1,317Multiple Airlines

Sat, 31 Oct - Mon, 23 Nov

21:40 - 22:52SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 12m1 stop Honolulu

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

17h 45m1 stop Honolulu

$1,317Multiple Airlines

Sat, 31 Oct - Mon, 23 Nov

09:00 - 09:32SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 32m2 stops Brisbane Vancouver Intl

15:15 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

$1,606Air Canada

Tue, 3 Nov - Thu, 26 Nov

08:00 - 09:27SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

19h 27m2 stops Brisbane Vancouver Intl

15:15 - 09:35SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

$1,655Air Canada

Sat, 31 Oct - Thu, 26 Nov

19:50 - 15:12SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

37h 22m2 stops Brisbane Los Angeles

13:38 - 09:00SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

24h 22m1 stop Los Angeles

$1,695Qantas Airways

Sun, 1 Nov - Wed, 25 Nov

21:50 - 23:42SYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

44h 52m2 stops Brisbane Los Angeles

18:03 - 06:25SEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

41h 22m1 stop Los Angeles

$1,697Qantas Airways

Sun, 1 Nov - Mon, 23 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

25 Nov

SYD11:50Sydney Kingsford Smith

27h 57m

1 stop

SEA20:47Seattle/Tacoma Intl

5 Dec

SEA19:30Seattle/Tacoma Intl

39h 50m

1 stop

SYD06:20Sydney Kingsford Smith

$1,315

United Airlines

23 Nov

SYD11:50Sydney Kingsford Smith

19h 30m

1 stop

SEA12:20Seattle/Tacoma Intl

5 Dec

SEA19:30Seattle/Tacoma Intl

39h 50m

1 stop

SYD06:20Sydney Kingsford Smith

$1,344

United Airlines

24 Nov

SYD11:50Sydney Kingsford Smith

27h 57m

1 stop

SEA20:47Seattle/Tacoma Intl

5 Dec

SEA19:30Seattle/Tacoma Intl

39h 50m

1 stop

SYD06:20Sydney Kingsford Smith

$1,348

Delta flights from New South Wales to Seattle

Our best Delta deals on New South Wales to Seattle flight tickets

Delta

24 Nov

SYD10:40Sydney Kingsford Smith

18h 25m

1 stop

SEA10:05Seattle/Tacoma Intl

1 Dec

SEA21:20Seattle/Tacoma Intl

40h 10m

1 stop

SYD08:30Sydney Kingsford Smith

$1,314

Delta

20 Jan

SYD10:40Sydney Kingsford Smith

24h 56m

2 stops

SEA16:36Seattle/Tacoma Intl

31 Jan

SEA11:00Seattle/Tacoma Intl

26h 30m

2 stops

SYD08:30Sydney Kingsford Smith

$1,317

Delta

6 Nov

SYD10:40Sydney Kingsford Smith

30h 25m

2 stops

SEA22:05Seattle/Tacoma Intl

18 Nov

SEA05:35Seattle/Tacoma Intl

31h 55m

2 stops

SYD08:30Sydney Kingsford Smith

$1,384

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 24/11

11:10-16:07

1 stop23h 57m

Seattle/Tacoma Intl

Tue 1/12

07:21-09:00

1 stop30h 39m

$1,307

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 25/11

11:10-16:07

1 stop23h 57m

Seattle/Tacoma Intl

Sat 5/12

15:00-09:00

2 stops47h 00m

$1,307

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 23/11

10:40-20:09

1 stop28h 29m

Seattle/Tacoma Intl

Sun 29/11

20:15-08:30

1 stop41h 15m

$1,314

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

$1,314

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Wed 25/11

09:15-13:25

1 stop23h 10m

Seattle/Tacoma Intl

Tue 1/12

23:59-07:00

1 stop36h 01m

$1,314

Fastest return journey

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Mon 23/11

11:20-11:14

1 stop18h 54m

Seattle/Tacoma Intl

Wed 2/12

19:30-09:20

1 stop18h 50m

$1,314

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 21/11

11:15-00:42

2 stops32h 27m

Seattle/Tacoma Intl

Sun 29/11

12:11-09:00

1 stop25h 49m

$1,352

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sat 21/11

11:10-13:08

1 stop20h 58m

Seattle/Tacoma Intl

Sun 29/11

12:11-09:00

1 stop25h 49m

$1,358

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Sun 22/11

11:10-00:20

1 stop32h 10m

Seattle/Tacoma Intl

Fri 4/12

13:35-09:00

1 stop24h 25m

$1,452

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 20/11

11:10-11:03

1 stop18h 53m

Seattle/Tacoma Intl

Thu 3/12

15:55-09:00

1 stop22h 05m

$1,452

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 $1,330. 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 $1,425.

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 $1,590 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 $1,426 on momondo.

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

You could potentially save up to 17% 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	$647
Fastest flight time	20h 37m
Direct flights	None

The best one-way flight to Seattle from New South Wales in the past 72 hours is $647. The best return flight deal from New South Wales to Seattle found on momondo in the last 72 hours is $1,307.

The fastest flight from New South Wales to Seattle takes 20h 37m

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 October 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 $921	Free cancellation	Rating 7.6 482 reviews	Search Virgin Australia flights
Delta	PriceFrom $979	Free cancellation	Rating 7.8 8,698 reviews	Search Delta flights
United Airlines	PriceFrom $1,054	Free cancellation	Rating 7.3 10,460 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,208	Free cancellation	Rating 7.1 11,835 reviews	Search Air Canada flights
American Airlines	PriceFrom $1,253	Free cancellation	Rating 7.0 12,222 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $1,273	Free cancellation	Rating 7.5 1,122 reviews	Search Qantas Airways flights
Hawaiian Airlines	PriceFrom $1,545	Free cancellation	Rating 7.8 2,805 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 $647

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 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from New South Wales to Seattle

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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

Delta flights from New South Wales to Seattle

Our best Delta 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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