What are the cheapest airlines to fly from Seattle to New South Wales one-way?

The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $469. However, be on the lookout for offers from Qantas Airways and American Airlines, as they are both options that can get you from Seattle to New South Wales for a low price.

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?

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

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

To save up to 15% on this flight, we recommend booking at least 10 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to New South Wales from $880 1-2 weeks out and tickets from $1,183 for flights departing within the next 72 hours.

What is the cheapest month to fly from Seattle to New South Wales?

The best pricing can be found in the month of March. Prices to New South Wales from Seattle average $1,144. You can even find prices in March for less than $1,144, as users have found deals to New South Wales from as low as $833. The month of December appears to be one of the more expensive times to travel to New South Wales from Seattle. Flying in the targeted month can save you up to 31%.

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.

$466+ Flights from Seattle to New South Wales

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Cheap flight deals from Seattle to New South Wales

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$996 (Delta)
One-way from	$466 (Kiwi.com)
Popular in	December
Cheapest in	March
Average price	$1,170

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

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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

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

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($129 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

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Find 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 May 1, 2025.

Wed 6/113:55 pmSEA - SYD

1 stop29h 45mMultiple Airlines

Wed 6/184:20 pmSYD - SEA

1 stop24h 04mMultiple Airlines

Deal found 4/29

$1,002

Sun 10/1911:35 pmSEA - SYD

1 stop39h 25mPhilippine Airlines

Sun 10/2611:15 amSYD - SEA

1 stop26h 20mPhilippine Airlines

Deal found 4/29

$1,066

Sat 6/1412:44 pmSEA - SYD

2 stops25h 16mUnited Airlines

Sun 6/229:30 amSYD - SEA

1 stop21h 31mUnited Airlines

Deal found 4/30

$1,079

Sat 6/145:44 pmSEA - SYD

1 stop19h 51mDelta

Sat 6/219:25 amSYD - SEA

1 stop24h 35mDelta

Deal found 4/29

$1,089

Sun 5/254:00 pmSEA - SYD

1 stop22h 05mQantas Airways

Sun 6/85:45 pmSYD - SEA

1 stop21h 00mQantas Airways

Deal found 4/30

$1,138

Fri 5/28:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Sun 5/49:40 pmSYD - SEA

1 stop19h 04mHawaiian Airlines

Deal found 4/29

$1,152

Sun 9/71:45 pmSEA - SYD

1 stop24h 35mAir Canada

Tue 9/167:30 amSYD - SEA

2 stops22h 35mAir Canada

Deal found 4/29

$1,160

Wed 7/98:40 pmSEA - SYD

1 stop30h 05mAlaska Airlines

Fri 7/189:40 pmSYD - SEA

1 stop25h 20mAlaska Airlines

Deal found 4/29

$1,164

Mon 8/112:50 pmSEA - SYD

2 stops24h 55mAir New Zealand

Mon 8/258:45 amSYD - SEA

2 stops30h 30mAir New Zealand

Deal found 4/29

$1,166

Wed 6/111:45 pmSEA - SYD

2 stops26h 40mANA

Fri 6/208:55 pmSYD - SEA

2 stops38h 41mANA

Deal found 4/29

$1,212

Mon 5/197:20 amSEA - SYD

2 stops32h 40mChina Eastern

Mon 6/28:30 pmSYD - SEA

2 stops37h 15mChina Eastern

Deal found 4/30

$1,258

Fri 6/68:25 amSEA - OOL

2 stops29h 55mMultiple Airlines

Fri 6/136:00 amOOL - SEA

2 stops34h 24mMultiple Airlines

Deal found 4/28

$1,312

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 May 1, 2025.

Sun 10/1911:25 amSEA - SYD

2 stops26h 10mDelta

Thu 10/3010:05 amSYD - SEA

2 stops22h 54mDelta

Deal found 4/30

$996

Mon 6/26:52 pmSEA - SYD

1 stop19h 38mMultiple Airlines

Thu 6/54:20 pmSYD - SEA

2 stops31h 16mMultiple Airlines

Deal found 4/30

$997

Sun 9/71:45 pmSEA - SYD

2 stops26h 40mANA

Tue 9/1611:50 amSYD - SEA

2 stops23h 46mANA

Deal found 4/30

$1,070

Sat 6/1412:44 pmSEA - SYD

2 stops25h 16mUnited Airlines

Sun 6/229:30 amSYD - SEA

2 stops28h 41mUnited Airlines

Deal found 4/30

$1,079

Sun 5/254:00 pmSEA - SYD

1 stop22h 05mQantas Airways

Sun 6/85:45 pmSYD - SEA

1 stop21h 00mQantas Airways

Deal found 4/30

$1,138

Thu 8/288:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Tue 9/29:40 pmSYD - SEA

1 stop18h 32mHawaiian Airlines

Deal found 4/30

$1,152

Sun 8/242:55 pmSEA - SYD

2 stops24h 50mAir New Zealand

Fri 9/1211:50 amSYD - SEA

2 stops27h 25mAir New Zealand

Deal found 4/30

$1,209

Tue 8/265:59 pmSEA - SYD

1 stop20h 06mAlaska Airlines

Fri 9/59:10 amSYD - SEA

1 stop24h 40mAlaska Airlines

Deal found 4/30

$1,218

Mon 10/201:45 pmSEA - SYD

1 stop24h 35mAir Canada

Mon 10/277:30 amSYD - SEA

2 stops19h 46mAir Canada

Deal found 4/30

$1,249

Mon 5/197:20 amSEA - SYD

2 stops32h 40mChina Eastern

Mon 6/28:30 pmSYD - SEA

2 stops37h 15mChina Eastern

Deal found 4/30

$1,258

Tue 8/262:32 pmSEA - SYD

2 stops28h 13mFiji Airways

Tue 9/96:00 amSYD - SEA

3 stops34h 09mFiji Airways

Deal found 4/30

$1,571

Thu 8/217:10 pmSEA - SYD

2 stops54h 50mTurkish Airlines

Wed 9/38:55 pmSYD - SEA

2 stops37h 20mTurkish Airlines

Deal found 4/30

$1,624

Last-minute flights from Seattle to New South Wales
Discover last-minute flight deals from Seattle to New South Wales. Data last updated May 1, 2025 and is based on user searches.

Fri 5/28:15 amSEA - SYD

1 stop18h 30mHawaiian Airlines

Sun 5/49:40 pmSYD - SEA

1 stop19h 04mHawaiian Airlines

Deal found 4/29

$1,152

Fri 5/28:40 pmSEA - SYD

1 stop30h 05mAlaska Airlines

Tue 5/69:40 pmSYD - SEA

2 stops25h 55mAlaska Airlines

Deal found 4/30

$1,175

Sun 5/41:10 amSEA - SYD

1 stop40h 35mChina Airlines

Mon 5/1210:10 pmSYD - SEA

1 stop38h 20mChina Airlines

Deal found 4/29

$1,718

Mon 5/58:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Sun 5/119:40 pmSYD - SEA

2 stops25h 56mAlaska Airlines

Deal found 4/29

$1,158

Mon 5/59:55 amSEA - SYD

2 stops27h 40mDelta

Sun 5/119:25 amSYD - SEA

2 stops30h 00mDelta

Deal found 4/29

$1,502

Tue 5/61:10 amSEA - SYD

1 stop40h 35mChina Airlines

Fri 5/2310:10 pmSYD - SEA

1 stop38h 20mChina Airlines

Deal found 4/30

$1,754

Wed 5/712:50 pmSEA - SYD

2 stops49h 30mMultiple Airlines

Fri 5/234:20 pmSYD - SEA

1 stop33h 15mMultiple Airlines

Deal found 4/30

$1,097

Wed 5/76:50 pmSEA - SYD

1 stop31h 55mHawaiian Airlines

Fri 5/239:40 pmSYD - SEA

1 stop17h 20mHawaiian Airlines

Deal found 4/30

$1,175

Wed 5/710:13 amSEA - SYD

1 stop27h 42mAmerican Airlines

Wed 5/219:10 amSYD - SEA

2 stops21h 49mAmerican Airlines

Deal found 4/29

$1,496

Fri 5/96:25 pmSEA - SYD

1 stop20h 05mQantas Airways

Wed 5/149:10 amSYD - SEA

1 stop22h 43mQantas Airways

Deal found 4/30

$1,404

Fri 5/93:25 pmSEA - SYD

2 stops22h 30mUnited Airlines

Wed 5/149:30 amSYD - SEA

2 stops26h 00mUnited Airlines

Deal found 4/30

$1,638

Fri 5/96:25 pmSEA - SYD

3 stops27h 45mAir Tahiti Nui

Wed 5/145:50 pmSYD - SEA

3 stops41h 37mAir Tahiti Nui

Deal found 4/30

$1,925

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 May 1, 2025.

Thu 6/128:40 pmSEA - SYD

1 stop25h 00mMultiple Airlines

Deal found 4/30

$466

Sun 6/12:55 pmSEA - SYD

1 stop23h 25mAir Canada

Deal found 4/30

$469

Sat 6/76:52 pmSEA - SYD

1 stop19h 13mQantas Airways

Deal found 4/30

$486

Thu 6/53:17 pmSEA - SYD

2 stops22h 48mAmerican Airlines

Deal found 4/30

$513

Thu 6/57:20 amSEA - SYD

3 stops30h 40mUnited Airlines

Deal found 4/30

$515

Fri 6/132:40 pmSEA - OOL

2 stops27h 00mQantas Airways

Deal found 4/30

$584

Sat 6/1411:40 amSEA - NTL

2 stops33h 20mUnited Airlines

Deal found 4/30

$643

Tue 5/206:25 pmSEA - SYD

1 stop32h 20mHawaiian Airlines

Deal found 4/30

$669

Sat 5/108:15 amSEA - SYD

1 stop18h 30mAlaska Airlines

Deal found 4/30

$696

Wed 7/91:45 pmSEA - SYD

2 stops36h 30mANA

Deal found 4/30

$711

Tue 7/1511:22 amSEA - SYD

2 stops26h 13mDelta

Deal found 4/30

$720

Thu 5/812:50 pmSEA - NTL

3 stops50h 10mMultiple Airlines

Deal found 4/30

$776

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

Wed 6/11

3:55 pm-2:40 pm

1 stop29h 45m

Sydney Kingsford Smith

Wed 6/18

4:20 pm-11:24 pm

1 stop24h 04m

$1,002

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 6/14

12:44 pm-7:00 am

2 stops25h 16m

Sydney Kingsford Smith

Sun 6/22

9:30 am-2:01 pm

1 stop21h 31m

$1,079

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 6/14

5:44 pm-6:35 am

1 stop19h 51m

Sydney Kingsford Smith

Sat 6/21

9:25 am-5:00 pm

1 stop24h 35m

$1,089

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 5/25

4:00 pm-7:05 am

1 stop22h 05m

Sydney Kingsford Smith

Sun 6/8

5:45 pm-9:45 pm

1 stop21h 00m

$1,138

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 5/5

8:15 am-7:45 pm

1 stop18h 30m

Sydney Kingsford Smith

Tue 6/3

9:40 pm-11:33 pm

1 stop18h 53m

$1,158

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 7/9

8:40 pm-7:45 pm

1 stop30h 05m

Sydney Kingsford Smith

Fri 7/18

9:40 pm-6:00 am

1 stop25h 20m

$1,164

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 6/11

1:45 pm-9:25 am

2 stops26h 40m

Sydney Kingsford Smith

Fri 6/20

8:55 pm-6:36 pm

2 stops38h 41m

$1,212

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 5/19

7:20 am-9:00 am

2 stops32h 40m

Sydney Kingsford Smith

Mon 6/2

8:30 pm-4:45 pm

2 stops37h 15m

$1,258

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Thu 7/3

5:14 pm-10:35 am

2 stops24h 21m

Sydney Kingsford Smith

Tue 8/5

11:50 am-6:58 pm

2 stops24h 08m

$1,280

SeattleCoolangatta

SEA - OOL

SEAOOL

Seattle/Tacoma Intl

Fri 6/6

8:25 am-7:20 am

2 stops29h 55m

Coolangatta Gold Coast

Fri 6/13

6:00 am-11:24 pm

2 stops34h 24m

$1,312

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 46 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, March is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $1,043). Flying from Seattle to New South Wales in December is currently the most expensive (average of $1,643). 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.

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.

Rainfall in New South Wales by month

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.

Temperature in New South Wales by month

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).

Reviews of airlines servicing New South Wales

Peruse reviews from past customers who have flown with Air Tahiti Nui, China Airlines and ANA 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.

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui

8.8

Very good

62 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

China Airlines

8.3

Very good

732 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very good

852 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Fiji Airways

8.1

Very good

190 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very good

1,292 reviews

Air Tahiti Nui

8.8

Very good

62 reviews

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

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.
What are the cheapest airlines to fly from Seattle to New South Wales one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $469. However, be on the lookout for offers from Qantas Airways and American Airlines, as they are both options that can get you from Seattle to New South Wales for a low price.
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, March is the cheapest month in which you can book a flight from Seattle to New South Wales (average of $1,043). Flying from Seattle to New South Wales in December is currently the most expensive (average of $1,643). 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

Parkes Airport car rentals

Taree Airport car rentals

Sydney car rentals

Port Macquarie car rentals

Orange car rentals

Top 8 airlines flying from Seattle to New South Wales

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$759	Average$1,133	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$807	Average$1,212	FlexibilityNo cancel fee	On-time71%
Air Canada	Cheapest$834	Average$1,066	FlexibilityNo cancel fee	On-time67%
Delta	Cheapest$854	Average$1,147	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$858	Average$1,144	FlexibilityNo cancel fee	On-time85%
ANA	Cheapest$861	Average$1,196	FlexibilityNo cancel fee	On-time80%
Qantas Airways	Cheapest$866	Average$1,241	FlexibilityNo cancel fee	On-time74%
Alaska Airlines	Cheapest$911	Average$1,276	FlexibilityNo cancel fee	On-time75%

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$466+ 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 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to New South Wales with Cheapflights

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Cheap 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 May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 May 1, 2025.

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 May 1, 2025.

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?

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

Find hourly flight availability from Seattle to New South Wales. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Rainfall in New South Wales by month

Plan your trip to New South Wales by taking into account the average rainfall totals by month.

Temperature in New South Wales by month

Plan your trip to New South Wales by taking into account the average temperature totals by month.

Reviews of airlines servicing New South Wales

Peruse reviews from past customers who have flown with Air Tahiti Nui, China Airlines and ANA 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?

What are the cheapest airlines to fly from Seattle to New South Wales one-way?

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 8 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 May 1, 2025.