How long is the flight from Seattle to New South Wales?

There are many flights that can get you from Seattle to New South Wales in 24h 05m. Fly via Qantas Airways or Air New Zealand to get the fastest option. The distance between Seattle and New South Wales is about 7367 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in New South Wales ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit New South Wales when rainfall is around 2.0 in.

If weather is an important factor for your trip to New South Wales, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular routes from Seattle to New South Wales?

The most popular flight routes from Seattle to New South Wales are Seattle/Tacoma Intl - Sydney Kingsford Smith, Seattle/Tacoma Intl - Newcastle Williamtown and Seattle/Tacoma Intl - Coolangatta Gold Coast.

What are the most popular airlines that fly from Seattle to New South Wales?

United Airlines, Air Canada and Alaska Airlines are the most popular airlines when flying from Seattle to New South Wales.

What is the cheapest time of day to fly from SEA to NSW?

When flying from Seattle to New South Wales, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Seattle to New South Wales?

For a flight from Seattle to New South Wales, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

Can I find deals for flights from Seattle to New South Wales that include hotel bookings?

Yes. In addition to deals on Seattle to New South Wales flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to New South Wales?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to New South Wales.

Can I find deals for business class flights from Seattle to New South Wales?

Yes. Cheapflights offers flight deals from Seattle to New South Wales by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$377+ Flights from Seattle to New South Wales

Q: How much does it cost to fly round-trip from Seattle to New South Wales?

Airfare is below average for this route at the moment. Seattle to New South Wales flights typically cost between $1,141 and $1,511 in February. The cheapest round-trip price found within the last 3 days was $1,090 on Multiple Airlines (Feb 17-Mar 10).

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Cheap flight deals from Seattle to New South Wales

Cheapest flights from Seattle to New South Wales
Explore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Wed 12/316:00 amSEA - SYD

1 stop32h 00mQantas Airways

Wed 1/74:20 pmSYD - SEA

2 stops44h 45mQantas Airways

Deal found 12/30

$1,160

Wed 12/313:40 pmSEA - SYD

1 stop22h 55mAir Canada

Tue 2/1011:20 amSYD - SEA

1 stop22h 11mAir Canada

Deal found 12/31

$1,230

Wed 12/313:49 pmSEA - SYD

2 stops44h 26mCathay Pacific

Tue 2/1011:05 amSYD - SEA

2 stops41h 56mCathay Pacific

Deal found 12/31

$1,343

Wed 12/318:00 pmSEA - SYD

1 stop18h 35mMultiple Airlines

Tue 1/65:50 pmSYD - SEA

2 stops34h 25mMultiple Airlines

Deal found 12/30

$1,527

Tue 12/308:00 pmSEA - SYD

2 stops24h 15mMultiple Airlines

Mon 1/57:15 pmSYD - SEA

2 stops33h 00mMultiple Airlines

Deal found 12/29

$1,542

Wed 12/318:57 amSEA - SYD

2 stops27h 03mUnited Airlines

Tue 1/611:20 amSYD - SEA

2 stops26h 06mUnited Airlines

Deal found 12/30

$1,559

Tue 12/3011:45 amSEA - SYD

1 stop24h 05mDelta

Mon 1/510:40 amSYD - SEA

1 stop25h 18mDelta

Deal found 12/29

$1,703

Tue 12/307:12 pmSEA - SYD

1 stop19h 03mUnited Airlines

Tue 1/612:10 pmSYD - SEA

1 stop18h 20mUnited Airlines

Deal found 12/29

$1,730

Tue 12/308:00 pmSEA - SYD

2 stops22h 00mMultiple Airlines

Tue 1/65:00 pmSYD - SEA

3 stops40h 31mMultiple Airlines

Deal found 12/29

$1,772

Best flights from Seattle to New South Wales
Discover carefully curated flight deals from Seattle to New South Wales that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 1, 2026.

Fri 2/134:50 pmSEA - SYD

1 stop19h 35mMultiple Airlines

Fri 2/209:25 pmSYD - SEA

1 stop18h 22mMultiple Airlines

Deal found 12/30

$1,104

Tue 2/36:00 amSEA - SYD

1 stop32h 00mQantas Airways

Fri 2/135:45 pmSYD - SEA

1 stop21h 13mQantas Airways

Deal found 12/30

$1,140

Sun 2/17:30 pmSEA - SYD

1 stop18h 45mUnited Airlines

Mon 2/1611:50 amSYD - SEA

2 stops25h 13mUnited Airlines

Deal found 12/30

$1,155

Fri 2/133:40 pmSEA - OOL

2 stops24h 05mAir New Zealand

Fri 2/206:00 amOOL - SEA

3 stops34h 13mAir New Zealand

Deal found 12/31

$1,945

Wed 2/45:53 pmSEA - SYD

1 stop20h 07mQantas Airways

Tue 2/1711:20 amSYD - SEA

1 stop26h 38mQantas Airways

Deal found 12/30

$1,140

Tue 1/67:00 amSEA - SYD

1 stop17h 45mMultiple Airlines

Wed 1/149:40 pmSYD - SEA

1 stop19h 37mMultiple Airlines

Deal found 12/31

$1,162

Sun 2/17:30 pmSEA - SYD

1 stop18h 45mUnited Airlines

Tue 2/1711:50 amSYD - SEA

2 stops25h 13mUnited Airlines

Deal found 12/30

$1,164

Thu 2/56:00 amSEA - SYD

1 stop30h 25mQantas Airways

Thu 2/1911:20 amSYD - SEA

1 stop26h 37mQantas Airways

Deal found 12/30

$1,140

Tue 2/36:00 amSEA - SYD

1 stop30h 25mQantas Airways

Sat 2/1411:20 amSYD - SEA

1 stop24h 40mQantas Airways

Deal found 12/30

$1,140

Sun 2/16:00 amSEA - SYD

1 stop32h 00mQantas Airways

Thu 2/1911:20 amSYD - SEA

1 stop26h 37mQantas Airways

Deal found 12/30

$1,140

Sat 1/316:00 amSEA - SYD

1 stop32h 00mQantas Airways

Thu 2/195:45 pmSYD - SEA

1 stop20h 12mQantas Airways

Deal found 12/30

$1,140

Sat 1/316:00 amSEA - SYD

1 stop32h 00mQantas Airways

Wed 2/1811:20 amSYD - SEA

1 stop26h 38mQantas Airways

Deal found 12/30

$1,140

Wed 2/45:53 pmSEA - SYD

1 stop20h 07mQantas Airways

Wed 2/185:45 pmSYD - SEA

1 stop20h 12mQantas Airways

Deal found 12/30

$1,140

Sun 3/85:50 pmSEA - OOL

2 stops32h 55mQantas Airways

Thu 3/126:00 amOOL - SEA

2 stops31h 58mQantas Airways

Deal found 12/30

$1,474

Fri 2/135:45 amSEA - OOL

3 stops33h 55mMultiple Airlines

Fri 2/2012:10 pmOOL - SEA

3 stops65h 30mMultiple Airlines

Deal found 12/31

$2,777

Fri 2/134:50 pmSEA - OOL

2 stops27h 15mQantas Airways

Fri 2/2010:25 amOOL - SEA

2 stops26h 32mQantas Airways

Deal found 12/31

$1,508

Wed 5/134:12 pmSEA - NTL

2 stops25h 23mQantas Airways

Sun 5/173:40 pmNTL - SEA

2 stops48h 09mQantas Airways

Deal found 12/31

$1,649

Sat 2/2112:50 pmSEA - DBO

2 stops32h 35mQantas Airways

Wed 2/254:50 pmDBO - SEA

2 stops45h 08mQantas Airways

Deal found 12/30

$1,681

Last-minute flights from Seattle to New South Wales
Discover last-minute flight deals from Seattle to New South Wales. Data last updated January 1, 2026 and is based on user searches.

Sat 1/105:45 pmSEA - OOL

2 stops43h 50mMultiple Airlines

Mon 1/198:20 amOOL - SEA

2 stops31h 57mMultiple Airlines

Deal found 1/1

$1,448

Sun 1/118:00 pmSEA - SYD

2 stops23h 40mAir Canada

Sun 1/2511:20 amSYD - SEA

1 stop26h 56mAir Canada

Deal found 12/30

$1,120

Tue 1/137:00 amSEA - SYD

1 stop17h 45mMultiple Airlines

Fri 1/169:40 pmSYD - SEA

1 stop19h 37mMultiple Airlines

Deal found 12/30

$1,138

Sun 1/188:00 pmSEA - SYD

2 stops27h 05mAir Canada

Tue 1/278:30 amSYD - SEA

2 stops20h 01mAir Canada

Deal found 12/30

$1,098

Tue 1/208:00 pmSEA - SYD

2 stops23h 40mAir Canada

Sat 2/2111:20 amSYD - SEA

1 stop17h 11mAir Canada

Deal found 12/31

$1,111

Tue 1/208:00 pmSEA - SYD

2 stops25h 40mMultiple Airlines

Sat 2/219:00 amSYD - SEA

2 stops19h 31mMultiple Airlines

Deal found 12/29

$1,126

Mon 1/268:00 pmSEA - SYD

1 stop18h 35mAir Canada

Mon 2/211:20 amSYD - SEA

1 stop26h 56mAir Canada

Deal found 12/30

$1,134

Wed 1/283:57 pmSEA - SYD

1 stop20h 28mQantas Airways

Sun 2/87:05 amSYD - SEA

2 stops31h 17mQantas Airways

Deal found 1/1

$1,142

Thu 1/293:57 pmSEA - SYD

2 stops25h 38mMultiple Airlines

Thu 2/52:00 pmSYD - SEA

2 stops22h 52mMultiple Airlines

Deal found 1/1

$1,141

Sat 1/316:00 amSEA - SYD

1 stop32h 00mQantas Airways

Mon 2/165:45 pmSYD - SEA

1 stop20h 12mQantas Airways

Deal found 12/30

$1,140

One-way flights from Seattle to New South Wales
Search for one-way flight options from Seattle to New South Wales. Find affordable one-way fares based on user searches. Data last updated January 1, 2026.

Sun 3/810:30 pmSEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 12/31

$377

Sun 2/812:01 pmSEA - SYD

1 stop24h 24mMultiple Airlines

Deal found 12/31

$459

Wed 3/186:24 pmSEA - SYD

1 stop20h 36mMultiple Airlines

Deal found 12/30

$464

Thu 1/2910:51 amSEA - SYD

1 stop25h 34mMultiple Airlines

Deal found 12/30

$488

Thu 3/59:30 pmSEA - SYD

2 stops40h 45mMultiple Airlines

Deal found 12/30

$496

Sun 3/110:03 amSEA - SYD

2 stops52h 47mMultiple Airlines

Deal found 12/30

$497

Wed 2/259:30 pmSEA - SYD

2 stops40h 45mMultiple Airlines

Deal found 12/30

$502

Tue 3/310:53 amSEA - SYD

3 stops51h 22mMultiple Airlines

Deal found 12/30

$508

Mon 2/21:11 pmSEA - SYD

2 stops45h 59mMultiple Airlines

Deal found 12/31

$516

Sun 2/110:05 amSEA - SYD

1 stop28h 30mAir Canada

Deal found 12/30

$517

Sat 1/3112:54 pmSEA - SYD

2 stops46h 16mMultiple Airlines

Deal found 12/31

$522

Thu 1/223:57 pmSEA - OOL

2 stops30h 13mQantas Airways

Deal found 1/1

$1,082

Find flight deals from Seattle to New South Wales

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,090 (FlightHub)
One-way from	$377 (SmartFares)
Popular in	December
Cheapest in	August
Average price	$1,332

Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.

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From Seattle/Tacoma Intl to New South Wales

Search Deals

One-way flight from Seattle/Tacoma Intl to New South Wales

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($194 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Fri 2/13

4:50 pm-7:25 am

1 stop19h 35m

Sydney Kingsford Smith

Fri 2/20

9:25 pm-8:47 pm

1 stop18h 22m

$1,104

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 2/3

6:00 am-9:00 am

1 stop32h 00m

Sydney Kingsford Smith

Fri 2/13

5:45 pm-7:58 pm

1 stop21h 13m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 2/4

5:53 pm-9:00 am

1 stop20h 07m

Sydney Kingsford Smith

Tue 2/17

11:20 am-6:58 pm

1 stop26h 38m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 2/5

6:00 am-7:25 am

1 stop30h 25m

Sydney Kingsford Smith

Thu 2/19

11:20 am-6:57 pm

1 stop26h 37m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 2/3

6:00 am-7:25 am

1 stop30h 25m

Sydney Kingsford Smith

Sat 2/14

11:20 am-5:00 pm

1 stop24h 40m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 2/1

6:00 am-9:00 am

1 stop32h 00m

Sydney Kingsford Smith

Thu 2/19

11:20 am-6:57 pm

1 stop26h 37m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 1/31

6:00 am-9:00 am

1 stop32h 00m

Sydney Kingsford Smith

Thu 2/19

5:45 pm-6:57 pm

1 stop20h 12m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 1/31

6:00 am-9:00 am

1 stop32h 00m

Sydney Kingsford Smith

Wed 2/18

11:20 am-6:58 pm

1 stop26h 38m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 2/4

5:53 pm-9:00 am

1 stop20h 07m

Sydney Kingsford Smith

Wed 2/18

5:45 pm-6:57 pm

1 stop20h 12m

$1,140

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 2/1

7:30 pm-9:15 am

1 stop18h 45m

Sydney Kingsford Smith

Mon 2/16

11:50 am-6:03 pm

2 stops25h 13m

$1,155

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 32 results

Best time to book a flight from Seattle to New South Wales

Have a flexible travel schedule? Discover the best time to fly to New South Wales from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to New South Wales

What is the cheapest month to book a flight from Seattle to New South Wales?

Currently, July is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $518). Flying from Seattle to New South Wales in December is currently the most expensive (average of $851). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to New South Wales?

Reviews of airlines servicing New South Wales

Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Qantas Airways from Seattle to New South Wales to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

Alaska Airlines

8.0

Very good

11,599 reviews

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

Delta

7.9

Good

8,021 reviews

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

Qantas Airways

7.5

Good

961 reviews

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

United Airlines

7.4

Good

9,132 reviews

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

Air Canada

7.1

Good

10,573 reviews

Alaska Airlines

8.0

Very good

11,599 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Dec 2025

SEA - MSY

Related info for your journey

What airport do you fly from for flights from Seattle to New South Wales?
For a flight from Seattle to New South Wales, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.
How long is the flight from Seattle to New South Wales?
There are many flights that can get you from Seattle to New South Wales in 24h 05m. Fly via Qantas Airways or Air New Zealand to get the fastest option. The distance between Seattle and New South Wales is about 7367 mi. This flight may include one or multiple stops.
What are the most popular routes from Seattle to New South Wales?
The most popular flight routes from Seattle to New South Wales are Seattle/Tacoma Intl - Sydney Kingsford Smith, Seattle/Tacoma Intl - Newcastle Williamtown and Seattle/Tacoma Intl - Coolangatta Gold Coast.
Can I find deals for flights from Seattle to New South Wales that include hotel bookings?
Yes. In addition to deals on Seattle to New South Wales flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to New South Wales?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to New South Wales.
Can I find deals for business class flights from Seattle to New South Wales?
Yes. Cheapflights offers flight deals from Seattle to New South Wales by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to New South Wales?
Currently, July is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $518). Flying from Seattle to New South Wales in December is currently the most expensive (average of $851). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to New South Wales

Complete your trip

New South Wales car rentals

Sydney Kingsford Smith Airport car rentals

Newcastle Williamtown Airport car rentals

Ballina Byron Airport car rentals

Wagga Wagga Forrest Hill Airport car rentals

Dubbo Airport car rentals

Tamworth Airport car rentals

Taree Airport car rentals

Parkes Airport car rentals

Sydney car rentals

Port Macquarie car rentals

Lismore car rentals

Top 9 airlines flying from Seattle to New South Wales

Airline	Cheapest	Average	Flexibility	On-time
ANA	Cheapest$583	Average$615	FlexibilityNo cancel fee	On-time80%
Alaska Airlines	Cheapest$591	Average$1,180	FlexibilityNo cancel fee	On-time75%
Philippine Airlines	Cheapest$758	Average$880	FlexibilityNo cancel fee	On-time60%
Air Canada	Cheapest$779	Average$1,051	FlexibilityNo cancel fee	On-time67%
Qantas Airways	Cheapest$789	Average$894	FlexibilityNo cancel fee	On-time74%
American Airlines	Cheapest$804	Average$976	FlexibilityNo cancel fee	On-time71%
Hawaiian Airlines	Cheapest$812	Average$1,162	FlexibilityNo cancel fee	On-time85%
United Airlines	Cheapest$830	Average$1,080	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$842	Average$1,193	FlexibilityNo cancel fee	On-timeN/A

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$377+ Cheap flights from Seattle (SEA) to New South Wales

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/8. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Seattle to New South Wales

Cheapest flights from Seattle to New South WalesExplore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Explore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Find flight deals from Seattle to New South Wales

Keep the following information in mind while searching for Seattle to New South Wales flight deals. Data was last updated January 1, 2026.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Seattle to New South Wales

Have a flexible travel schedule? Discover the best time to fly to New South Wales from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to New South Wales

What is the cheapest month to book a flight from Seattle to New South Wales?

How much does it cost to fly round-trip from Seattle to New South Wales?

Reviews of airlines servicing New South Wales

Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Qantas Airways from Seattle to New South Wales to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to New South Wales. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Seattle to New South Wales?

How long is the flight from Seattle to New South Wales?

What are the most popular routes from Seattle to New South Wales?

Can I find deals for flights from Seattle to New South Wales that include hotel bookings?

How can I find direct flights from Seattle to New South Wales?

Can I find deals for business class flights from Seattle to New South Wales?

What is the cheapest month to book a flight from Seattle to New South Wales?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to New South Wales

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Seattle to New South Wales

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Cheapest flights from Seattle to New South Wales
Explore the most affordable flight options available from Seattle to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.