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

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

Which airlines fly to Seattle?

United Airlines, Air Canada and Qantas Airways are the top three most popular airlines that fly to Seattle from New South Wales according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 10 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 April 2026, there are 10 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.

$692 Cheap Flights from New South Wales to Seattle in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from New South Wales to Seattle

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:15 - 14:51

SYD

SEA

22h 36m

1 stop

19:55 - 06:50

SEA

SYD

41h 55m

1 stop

$1,348Delta

Tue, 5 May - Mon, 11 May

09:15 - 12:23

SYD

SEA

20h 08m

1 stop

05:30 - 06:50

SEA

SYD

32h 20m

2 stops

$1,358Delta

Tue, 12 May - Tue, 19 May

09:15 - 16:53

SYD

SEA

24h 38m

1 stop

09:25 - 06:50

SEA

SYD

28h 25m

2 stops

$1,363Delta

Tue, 12 May - Tue, 19 May

09:15 - 16:53

SYD

SEA

24h 38m

1 stop

12:40 - 06:50

SEA

SYD

25h 10m

1 stop

$1,368Delta

Tue, 12 May - Tue, 19 May

13:15 - 18:40

SYD

SEA

22h 25m

2 stops

17:59 - 11:50

SEA

SYD

24h 51m

2 stops

$1,404Multiple Airlines

Tue, 12 May - Wed, 27 May

17:50 - 21:58

SYD

SEA

21h 08m

1 stop

14:40 - 07:05

SEA

SYD

23h 25m

1 stop

$1,407Qantas Airways

Wed, 10 Jun - Wed, 24 Jun

09:15 - 12:25

SYD

SEA

20h 10m

2 stops

13:25 - 06:50

SEA

SYD

24h 25m

2 stops

$1,416Delta

Sat, 2 May - Sun, 10 May

09:10 - 12:56

SYD

SEA

20h 46m

1 stop

17:28 - 07:30

SEA

SYD

21h 02m

1 stop

$1,423Qantas Airways

Thu, 14 May - Fri, 29 May

09:10 - 21:49

SYD

SEA

29h 39m

1 stop

17:00 - 07:05

SEA

SYD

21h 05m

1 stop

$1,426Qantas Airways

Mon, 1 Jun - Mon, 8 Jun

09:15 - 18:26

SYD

SEA

26h 11m

1 stop

07:25 - 06:50

SEA

SYD

30h 25m

1 stop

$1,428Delta

Fri, 1 May - Mon, 1 Jun

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Asiana Airlines flights from New South Wales to Seattle

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

Asiana Airlines

29 May

SYD09:30Sydney Kingsford Smith

22h 25m

1 stop

SEA14:55Seattle/Tacoma Intl

4 June

SEA00:55Seattle/Tacoma Intl

37h 35m

1 stop

SYD07:30Sydney Kingsford Smith

$1,439

Asiana Airlines

9 Sept

SYD21:00Sydney Kingsford Smith

34h 55m

1 stop

SEA14:55Seattle/Tacoma Intl

15 Sept

SEA00:55Seattle/Tacoma Intl

25h 30m

1 stop

SYD19:25Sydney Kingsford Smith

$1,444

American Airlines flights from New South Wales to Seattle

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

American Airlines

31 May

SYD09:10Sydney Kingsford Smith

28h 54m

2 stops

SEA21:04Seattle/Tacoma Intl

27 June

SEA07:00Seattle/Tacoma Intl

31h 05m

1 stop

SYD07:05Sydney Kingsford Smith

$1,469

American Airlines

31 May

SYD09:10Sydney Kingsford Smith

25h 34m

2 stops

SEA17:44Seattle/Tacoma Intl

27 June

SEA07:00Seattle/Tacoma Intl

31h 05m

1 stop

SYD07:05Sydney Kingsford Smith

$1,479

American Airlines

15 May

SYD09:10Sydney Kingsford Smith

30h 48m

1 stop

SEA22:58Seattle/Tacoma Intl

30 May

SEA14:03Seattle/Tacoma Intl

24h 02m

2 stops

SYD07:05Sydney Kingsford Smith

$1,482

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 5/5

09:15-14:51

1 stop22h 36m

Seattle/Tacoma Intl

Mon 11/5

19:55-06:50

1 stop41h 55m

$1,348

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/5

09:15-12:23

1 stop20h 08m

Seattle/Tacoma Intl

Tue 19/5

05:30-06:50

2 stops32h 20m

$1,358

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/5

09:15-16:53

1 stop24h 38m

Seattle/Tacoma Intl

Tue 19/5

09:25-06:50

2 stops28h 25m

$1,363

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/5

09:15-16:53

1 stop24h 38m

Seattle/Tacoma Intl

Tue 19/5

12:40-06:50

1 stop25h 10m

$1,368

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/5

13:15-18:40

2 stops22h 25m

Seattle/Tacoma Intl

Wed 27/5

17:59-11:50

2 stops24h 51m

$1,404

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Wed 10/6

17:50-21:58

1 stop21h 08m

Seattle/Tacoma Intl

Wed 24/6

14:40-07:05

1 stop23h 25m

$1,407

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Sat 2/5

09:15-12:25

2 stops20h 10m

Seattle/Tacoma Intl

Sun 10/5

13:25-06:50

2 stops24h 25m

$1,416

Fastest return journey

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 14/5

09:10-12:56

1 stop20h 46m

Seattle/Tacoma Intl

Fri 29/5

17:28-07:30

1 stop21h 02m

$1,423

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 1/6

09:10-21:49

1 stop29h 39m

Seattle/Tacoma Intl

Mon 8/6

17:00-07:05

1 stop21h 05m

$1,426

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Fri 1/5

09:15-18:26

1 stop26h 11m

Seattle/Tacoma Intl

Mon 1/6

07:25-06:50

1 stop30h 25m

$1,428

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 September is, on average, the cheapest month to fly to Seattle from New South Wales, with most prices found around $1,221. If you are unable to visit Seattle during the month of September, then departing from New South Wales during the month August is also very affordable. Most momondo users find prices during this month for around $1,232.

How far in advance should I book a flight 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 $1,457 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 $1,241 on momondo.

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

You could potentially save up to 21% 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

Fastest flight time	21h 08m
Direct flights	None

The fastest flight from New South Wales to Seattle takes 21h 08m

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 April 2026, there are 10 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
Delta	PriceFrom $677	Free cancellation	Rating 7.9 8,422 reviews	Search Delta flights
Air Canada	PriceFrom $1,040	Free cancellation	Rating 7.1 10,939 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,048	Free cancellation	Rating 7.6 452 reviews	Search Virgin Australia flights
Alaska Airlines	PriceFrom $1,091	Free cancellation	Rating 7.9 12,260 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $1,107	Free cancellation	Rating 7.4 9,604 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $1,116	Free cancellation	Rating 7.5 1,020 reviews	Search Qantas Airways flights
Hawaiian Airlines	PriceFrom $1,131	Free cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
American Airlines	PriceFrom $1,229	Free cancellation	Rating 7.1 11,620 reviews	Search American Airlines flights
ANA	PriceFrom $1,278	Free cancellation	Rating 8.4 1,179 reviews	Search ANA flights
Asiana Airlines	PriceFrom $1,360	Free cancellation	Rating 8.0 518 reviews	Search Asiana 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.

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Cheap flights from New South Wales to Seattle from $692

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 31/8. 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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Asiana Airlines flights from New South Wales to Seattle

Our best Asiana Airlines 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

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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 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

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

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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According to popular flight searches on momondo this year

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