What are the cheapest airlines to fly from Seattle to Australia one-way?

To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $740. United Airlines flights start at $758 while deals on Hawaiian Airlines start at $904 one-way. Find deals

What are the most popular routes from Seattle to Australia?

Most travellers choose Seattle/Tacoma Intl - Sydney Kingsford Smith, Seattle/Tacoma Intl - Melbourne or Seattle/Tacoma Intl - Brisbane when deciding on the best route from Seattle to Australia.

How far in advance should I book a flight from Seattle to Australia?

To save on the cost of your flight from Seattle to Australia, book at least 38 days before your planned departure. Booking around this time can save you about 34% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,416 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,825.

What is the cheapest month to fly from Seattle to Australia?

March can be a great time to fly to Australia from Seattle with a flight ticket averaging about $1,819. Cheapflights users have found deals in the month of March for as cheap as $1,265. The most expensive prices can be found in the month of December.

What airport do you fly from for flights from Seattle to Australia?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Australia. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

Can I find deals for flights from Seattle to Australia that include hotel bookings?

Yes. In addition to deals on Seattle to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Seattle to Australia?

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

Can I find deals for business class flights from Seattle to Australia?

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

$1,723+ Flights from Seattle to Australia

Cheap flight deals from Seattle to Australia

Round-trip from	$1,331
One-way from	$668

21/2-28/2
5 total stops
53h 47m total
Seattle to Australia

Search Deals

7/2
2 total stops
36h 52m total
Seattle to Australia

Search Deals

Find flight deals from Seattle to Australia

Cheapest flights from Seattle to Australia
Explore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Fri 21/217:38SEA - BNE

2 stops22h 42mMultiple Airlines

Fri 28/211:20BNE - SEA

3 stops31h 05mMultiple Airlines

Deal found 16/1$1,331

Fri 21/212:37SEA - BNE

1 stop24h 53mUnited Airlines

Fri 28/211:40BNE - SEA

1 stop20h 42mUnited Airlines

Deal found 16/1$1,389

Sun 16/305:15SEA - BNE

2 stops32h 15mLufthansa

Sun 23/310:40BNE - SEA

1 stop19h 59mLufthansa

Deal found 16/1$1,405

Mon 3/215:05SEA - SYD

2 stops30h 35mMultiple Airlines

Mon 10/207:05SYD - SEA

2 stops21h 52mMultiple Airlines

Deal found 16/1$1,431

Sun 9/219:05SEA - SYD

2 stops24h 35mAir Canada

Mon 17/208:30SYD - SEA

2 stops20h 27mAir Canada

Deal found 17/1$1,439

Sun 2/1110:35SEA - SYD

2 stops38h 40mANA

Sun 9/1121:45SYD - SEA

1 stop34h 35mANA

Deal found 16/1$1,445

Sun 2/314:07SEA - BNE

1 stop22h 08mAmerican Airlines

Sun 9/308:05BNE - SEA

1 stop24h 43mAmerican Airlines

Deal found 16/1$1,464

Fri 21/214:00SEA - BNE

1 stop23h 45mDelta

Fri 28/210:45BNE - SEA

1 stop24h 14mDelta

Deal found 16/1$1,469

Sat 8/205:45SEA - BNE

1 stop32h 55mAir Canada

Sat 15/210:45BNE - SEA

1 stop17h 12mAir Canada

Deal found 16/1$1,485

Mon 3/307:00SEA - SYD

1 stop17h 45mAlaska Airlines

Tue 11/321:40SYD - SEA

1 stop18h 15mAlaska Airlines

Deal found 17/1$1,522

Wed 5/218:31SEA - SYD

1 stop30h 14mHawaiian Airlines

Tue 4/321:40SYD - SEA

1 stop29h 14mHawaiian Airlines

Deal found 16/1$1,559

Wed 12/211:00SEA - PER

2 stops41h 15mMultiple Airlines

Wed 19/221:30PER - SEA

2 stops51h 30mMultiple Airlines

Deal found 16/1$1,582

Best flights from Seattle to Australia
Discover carefully curated flight deals from Seattle to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.

Fri 21/217:38SEA - BNE

2 stops22h 42mMultiple Airlines

Fri 28/211:20BNE - SEA

3 stops31h 05mMultiple Airlines

Deal found 16/1$1,331

Fri 21/212:37SEA - BNE

1 stop24h 53mUnited Airlines

Fri 28/211:40BNE - SEA

1 stop20h 42mUnited Airlines

Deal found 16/1$1,389

Sun 16/305:15SEA - BNE

2 stops32h 15mLufthansa

Sun 23/310:40BNE - SEA

1 stop19h 59mLufthansa

Deal found 16/1$1,405

Sun 9/219:05SEA - SYD

2 stops24h 35mAir Canada

Mon 17/208:30SYD - SEA

2 stops20h 27mAir Canada

Deal found 17/1$1,439

Tue 20/513:45SEA - SYD

2 stops26h 40mANA

Thu 5/611:50SYD - SEA

2 stops23h 43mANA

Deal found 16/1$1,445

Sun 2/314:07SEA - BNE

1 stop22h 08mAmerican Airlines

Sun 9/308:05BNE - SEA

1 stop24h 43mAmerican Airlines

Deal found 16/1$1,464

Fri 21/214:00SEA - BNE

1 stop23h 45mDelta

Fri 28/210:45BNE - SEA

1 stop24h 14mDelta

Deal found 16/1$1,469

Mon 3/307:00SEA - SYD

1 stop17h 45mAlaska Airlines

Tue 11/321:40SYD - SEA

1 stop18h 15mAlaska Airlines

Deal found 17/1$1,522

Wed 5/218:31SEA - SYD

1 stop30h 14mHawaiian Airlines

Tue 4/321:40SYD - SEA

1 stop29h 14mHawaiian Airlines

Deal found 16/1$1,559

Fri 14/323:35SEA - SYD

1 stop39h 55mPhilippine Airlines

Sun 30/311:10SYD - SEA

1 stop26h 10mPhilippine Airlines

Deal found 16/1$1,651

Thu 20/200:25SEA - BNE

1 stop35h 50mBritish Airways

Fri 28/209:40BNE - SEA

1 stop41h 54mBritish Airways

Deal found 16/1$1,772

Mon 3/316:05SEA - PER

1 stop34h 40mQatar Airways

Mon 10/322:45PER - SEA

1 stop28h 55mQatar Airways

Deal found 16/1$2,039

Last-minute flights from Seattle to Australia
Discover last-minute flight deals from Seattle to Australia. Data last updated 17 January 2025 and is based on user searches.

Wed 22/112:50SEA - SYD

1 stop25h 25mUnited Airlines

Sat 8/212:10SYD - SEA

1 stop25h 58mUnited Airlines

Deal found 16/1$1,918

Wed 22/117:55SEA - MEL

2 stops54h 15mMultiple Airlines

Wed 29/116:50MEL - SEA

1 stop22h 45mMultiple Airlines

Deal found 16/1$2,308

Wed 22/112:50SEA - MEL

2 stops48h 05mAir New Zealand

Wed 29/112:05MEL - SEA

2 stops25h 25mAir New Zealand

Deal found 16/1$2,897

Wed 22/119:00SEA - MEL

3 stops63h 40mTurkish Airlines

Wed 29/107:45MEL - SEA

3 stops52h 20mTurkish Airlines

Deal found 16/1$3,098

Wed 22/107:00SEA - MEL

1 stop32h 00mUnited Airlines

Tue 28/111:30MEL - SEA

1 stop21h 30mUnited Airlines

Deal found 16/1$3,336

Wed 22/109:20SEA - SYD

3 stops28h 25mMultiple Airlines

Sat 8/211:45SYD - SEA

2 stops25h 42mMultiple Airlines

Deal found 16/1$3,701

Wed 22/106:55SEA - MEL

2 stops45h 05mCathay Pacific

Tue 28/100:45MEL - SEA

2 stops36h 17mCathay Pacific

Deal found 15/1$3,910

Wed 22/122:35SEA - MEL

1 stop34h 35mPhilippine Airlines

Wed 29/110:20MEL - SEA

1 stop26h 50mPhilippine Airlines

Deal found 15/1$10,257

Mon 27/110:15SEA - SYD

1 stop27h 20mDelta

Tue 4/311:05SYD - SEA

1 stop22h 55mDelta

Deal found 16/1$1,695

Mon 27/107:00SEA - SYD

1 stop17h 45mAlaska Airlines

Tue 4/321:40SYD - SEA

1 stop29h 14mAlaska Airlines

Deal found 16/1$2,110

Mon 27/116:05SEA - SYD

3 stops58h 45mFiji Airways

Tue 4/314:00SYD - SEA

2 stops23h 45mFiji Airways

Deal found 16/1$3,284

Mon 27/100:10SEA - BNE

1 stop40h 35mChina Airlines

Sun 9/223:10BNE - SEA

1 stop37h 05mChina Airlines

Deal found 15/1$11,548

One-way flights from Seattle to Australia
Search for one-way flight options from Seattle to Australia. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.

Fri 7/213:58SEA - SYD

2 stops36h 52mMultiple Airlines

Deal found 16/1$668

Sat 8/213:58SEA - MEL

2 stops27h 17mMultiple Airlines

Deal found 16/1$687

Fri 2/516:20SEA - BNE

2 stops25h 15mMultiple Airlines

Deal found 16/1$724

Tue 18/314:50SEA - BNE

1 stop22h 40mAir Canada

Deal found 16/1$740

Wed 26/306:15SEA - BNE

3 stops31h 15mUnited Airlines

Deal found 17/1$758

Sat 8/213:58SEA - AVV

3 stops46h 37mMultiple Airlines

Deal found 16/1$808

Thu 27/207:00SEA - SYD

1 stop17h 45mHawaiian Airlines

Deal found 17/1$904

Wed 26/217:59SEA - SYD

2 stops30h 46mAlaska Airlines

Deal found 17/1$932

Mon 21/416:26SEA - OOL

3 stops54h 04mMultiple Airlines

Deal found 15/1$938

Mon 21/419:05SEA - SYD

1 stop19h 15mAir Canada

Deal found 15/1$954

Fri 14/315:05SEA - MEL

2 stops30h 40mAir Canada

Deal found 16/1$985

Wed 12/217:15SEA - MEL

1 stop21h 45mUnited Airlines

Deal found 16/1$1,003

Find flights from Seattle to Australia within your budget

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 21/2

17:38-10:20

2 stops22h 42m

Brisbane

Fri 28/2

11:20-00:25

3 stops31h 05m

$1,331

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 21/2

12:37-07:30

1 stop24h 53m

Brisbane

Fri 28/2

11:40-14:22

1 stop20h 42m

$1,389

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 16/3

05:15-06:30

2 stops32h 15m

Brisbane

Sun 23/3

10:40-13:39

1 stop19h 59m

$1,405

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 3/2

15:05-16:40

2 stops30h 35m

Sydney Kingsford Smith

Mon 10/2

07:05-09:57

2 stops21h 52m

$1,431

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 9/2

19:05-14:40

2 stops24h 35m

Sydney Kingsford Smith

Mon 17/2

08:30-09:57

2 stops20h 27m

$1,439

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 20/5

13:45-09:25

2 stops26h 40m

Sydney Kingsford Smith

Thu 5/6

11:50-18:33

2 stops23h 43m

$1,445

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 2/3

14:07-06:15

1 stop22h 08m

Brisbane

Sun 9/3

08:05-14:48

1 stop24h 43m

$1,464

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 21/2

14:00-07:45

1 stop23h 45m

Brisbane

Fri 28/2

10:45-16:59

1 stop24h 14m

$1,469

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sat 8/2

05:45-08:40

1 stop32h 55m

Brisbane

Sat 15/2

10:45-09:57

1 stop17h 12m

$1,485

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 3/3

07:00-19:45

1 stop17h 45m

Sydney Kingsford Smith

Tue 11/3

21:40-21:55

1 stop18h 15m

$1,522

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 60 results

...

Best time to book a flight from Seattle to Australia

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

Estimated return 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.

Travel insights for flights from Seattle to Australia

Get recent, data-driven insights about flights from Seattle to Australia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Australia?

Currently, May is the cheapest month in which you can book a flight from Seattle to Australia (average of $129). Flying from Seattle to Australia in October is currently the most expensive (average of $171). 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 AU?

When flying from Seattle to Australia, 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 Australia by month

In terms of precipitation, rainfall in Australia ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Australia when rainfall is around 50.0 mm.

Temperature in Australia by month

If weather is an important factor for your trip to Australia, 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 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Australia

Read through reviews of airlines operating flights from Seattle to Australia, such as Air Canada, ANA and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

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

Check prices

Reviews

1 / 2

EVA Air

8.4

Very Good

1,248 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

ANA

8.4

Very Good

847 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

Japan Airlines

8.3

Very Good

1,448 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

China Airlines

8.2

Very Good

737 reviews

Air Tahiti Nui

8.8

Very Good

62 reviews

Check prices

Reviews

1 / 2

Related info for your journey

What airport do you fly from for flights from Seattle to Australia?
Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Australia. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.
What are the cheapest airlines to fly from Seattle to Australia one-way?
To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $740. United Airlines flights start at $758 while deals on Hawaiian Airlines start at $904 one-way.
What are the most popular routes from Seattle to Australia?
Most travellers choose Seattle/Tacoma Intl - Sydney Kingsford Smith, Seattle/Tacoma Intl - Melbourne or Seattle/Tacoma Intl - Brisbane when deciding on the best route from Seattle to Australia.
Can I find deals for flights from Seattle to Australia that include hotel bookings?
Yes. In addition to deals on Seattle to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Seattle to Australia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Australia.
Can I find deals for business class flights from Seattle to Australia?
Yes. Cheapflights offers flight deals from Seattle to Australia 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 Australia?
Currently, May is the cheapest month in which you can book a flight from Seattle to Australia (average of $129). Flying from Seattle to Australia in October is currently the most expensive (average of $171). 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

Top 2 airlines flying from Seattle to Australia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,213	Average$2,039	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,288	Average$1,834	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Australia?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Australia. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Australia?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Australia.

Can Cheapflights find flights from Seattle to Australia with no change fees?

Certainly. Search results for flights to Australia from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Seattle to Australia become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Seattle to Australia from $668

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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Australia

Round-trip from

One-way from

Find flight deals from Seattle to Australia

Cheapest flights from Seattle to AustraliaExplore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Explore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Find flights from Seattle to Australia within your budget

Best time to book a flight from Seattle to Australia

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

Travel insights for flights from Seattle to Australia

Get recent, data-driven insights about flights from Seattle to Australia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Seattle to Australia?

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

Find hourly flight availability from Seattle to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 17 January 2025.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

Reviews of airlines servicing Australia

Read through reviews of airlines operating flights from Seattle to Australia, such as Air Canada, ANA and Alaska Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of 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 Australia. 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 Australia?

What are the cheapest airlines to fly from Seattle to Australia one-way?

What are the most popular routes from Seattle to Australia?

Can I find deals for flights from Seattle to Australia that include hotel bookings?

How can I find direct flights from Seattle to Australia?

Can I find deals for business class flights from Seattle to Australia?

What is the cheapest month to book a flight from Seattle to Australia?

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 Australia

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

Top 2 airlines flying from Seattle to Australia

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Australia?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Australia?

Can Cheapflights find flights from Seattle to Australia with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Australia become cheaper?

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Book with Flexibility

Travel Smart

Cheapest flights from Seattle to Australia
Explore the most affordable flight options available from Seattle to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.