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

To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $949. Air Canada flights start at $986 while deals on Cathay Pacific start at $1,105 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 $1,551 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,800.

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 $1,782. Cheapflights users have found deals in the month of March for as cheap as $1,251. 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.

$2,035+ Flights from Seattle to Australia

Cheap flight deals from Seattle to Australia

Round-trip from	$1,432
One-way from	$721

Air Canada
2/2-12/2
3 total stops
48h 45m total
Seattle to Australia

Search Deals

22/2
1 total stop
26h 49m 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 19 December 2024.

Tue 24/1218:13SEA - SYD

1 stop41h 07mUnited Airlines

Fri 3/112:10SYD - SEA

1 stop28h 05mUnited Airlines

Deal found 18/12$2,261

Tue 24/1217:49SEA - MEL

1 stop27h 31mMultiple Airlines

Tue 31/1213:40MEL - SEA

2 stops34h 30mMultiple Airlines

Deal found 18/12$2,611

Mon 30/1210:35SEA - AVV

3 stops34h 10mMultiple Airlines

Tue 4/208:10AVV - SEA

3 stops27h 50mMultiple Airlines

Deal found 17/12$2,748

Sun 29/1215:05SEA - SYD

2 stops35h 40mMultiple Airlines

Wed 8/107:05SYD - SEA

2 stops30h 25mMultiple Airlines

Deal found 18/12$2,835

Mon 30/1212:32SEA - MEL

1 stop26h 28mUnited Airlines

Mon 20/111:30MEL - SEA

2 stops28h 50mUnited Airlines

Deal found 18/12$2,840

Tue 31/1200:10SEA - BNE

1 stop26h 10mMultiple Airlines

Fri 7/211:10BNE - SEA

1 stop25h 00mMultiple Airlines

Deal found 17/12$2,900

Fri 27/1212:45SEA - SYD

1 stop24h 35mAsiana Airlines

Sat 8/210:20SYD - SEA

1 stop43h 35mAsiana Airlines

Deal found 18/12$3,104

Fri 20/1218:13SEA - BNE

1 stop19h 17mUnited Airlines

Sun 5/111:40BNE - SEA

2 stops42h 34mUnited Airlines

Deal found 18/12$3,348

Tue 31/1200:10SEA - PER

2 stops57h 15mMultiple Airlines

Fri 28/322:45PER - SEA

1 stop28h 55mMultiple Airlines

Deal found 17/12$3,594

Fri 27/1218:13SEA - SYD

1 stop20h 02mAir New Zealand

Sat 8/219:15SYD - SEA

2 stops45h 45mAir New Zealand

Deal found 18/12$3,801

Wed 25/1216:05SEA - ADL

1 stop30h 30mMultiple Airlines

Wed 15/108:20ADL - SEA

2 stops40h 30mMultiple Airlines

Deal found 18/12$3,921

Sun 29/1200:10SEA - MEL

1 stop40h 55mChina Airlines

Sun 19/100:35MEL - SEA

1 stop36h 40mChina Airlines

Deal found 18/12$3,997

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 19 December 2024.

Sun 2/219:05SEA - SYD

2 stops26h 35mMultiple Airlines

Wed 12/211:20SYD - SEA

1 stop22h 10mMultiple Airlines

Deal found 17/12$1,432

Sun 2/219:05SEA - SYD

2 stops26h 35mAir Canada

Mon 10/211:20SYD - SEA

1 stop17h 30mAir Canada

Deal found 18/12$1,437

Wed 7/523:30SEA - BNE

1 stop41h 25mPhilippine Airlines

Wed 28/511:15BNE - SEA

1 stop25h 05mPhilippine Airlines

Deal found 18/12$1,559

Sat 17/513:45SEA - SYD

2 stops26h 40mANA

Mon 26/511:50SYD - SEA

2 stops23h 43mANA

Deal found 18/12$1,727

Mon 10/214:00SEA - SYD

1 stop23h 35mDelta

Mon 3/314:15SYD - SEA

1 stop28h 16mDelta

Deal found 18/12$1,780

Mon 27/107:00SEA - SYD

1 stop29h 00mUnited Airlines

Tue 4/316:15SYD - SEA

1 stop21h 14mUnited Airlines

Deal found 18/12$1,795

Thu 20/207:00SEA - SYD

1 stop17h 45mHawaiian Airlines

Sat 8/321:40SYD - SEA

1 stop18h 20mHawaiian Airlines

Deal found 18/12$1,810

Wed 7/519:05SEA - MEL

2 stops55h 10mTurkish Airlines

Wed 28/507:00MEL - SEA

3 stops51h 10mTurkish Airlines

Deal found 18/12$2,046

Mon 3/308:00SEA - PER

2 stops42h 45mQatar Airways

Mon 10/322:45PER - SEA

1 stop28h 55mQatar Airways

Deal found 18/12$2,054

Mon 3/317:59SEA - PER

2 stops36h 46mCathay Pacific

Mon 10/311:05PER - SEA

2 stops39h 49mCathay Pacific

Deal found 18/12$2,094

Sat 1/209:20SEA - BNE

1 stop28h 10mLufthansa

Sat 8/211:40BNE - SEA

1 stop19h 52mLufthansa

Deal found 18/12$2,165

Mon 17/215:04SEA - MEL

1 stop23h 26mAir New Zealand

Tue 11/312:05MEL - SEA

2 stops24h 20mAir New Zealand

Deal found 18/12$2,338

Last-minute flights from Seattle to Australia
Discover last-minute flight deals from Seattle to Australia. Data last updated 19 December 2024 and is based on user searches.

Tue 24/1218:13SEA - SYD

1 stop41h 07mUnited Airlines

Fri 3/112:10SYD - SEA

1 stop28h 05mUnited Airlines

Deal found 18/12$2,261

Tue 24/1217:49SEA - MEL

1 stop27h 31mMultiple Airlines

Tue 31/1213:40MEL - SEA

2 stops34h 30mMultiple Airlines

Deal found 18/12$2,611

Tue 24/1216:30SEA - MEL

1 stop22h 30mUnited Airlines

Wed 1/111:30MEL - SEA

1 stop20h 11mUnited Airlines

Deal found 18/12$3,197

Tue 24/1215:59SEA - MEL

3 stops30h 51mAir Tahiti Nui

Tue 31/1206:45MEL - SEA

3 stops35h 02mAir Tahiti Nui

Deal found 18/12$4,737

Wed 25/1216:05SEA - ADL

1 stop30h 30mMultiple Airlines

Wed 15/108:20ADL - SEA

2 stops40h 30mMultiple Airlines

Deal found 18/12$3,921

Thu 26/1211:00SEA - AVV

2 stops32h 10mMultiple Airlines

Wed 5/206:00AVV - SEA

3 stops30h 00mMultiple Airlines

Deal found 17/12$4,050

Thu 26/1215:59SEA - SYD

3 stops26h 01mFiji Airways

Sat 18/115:20SYD - SEA

2 stops24h 00mFiji Airways

Deal found 18/12$4,529

Fri 27/1212:45SEA - SYD

1 stop24h 35mAsiana Airlines

Sat 8/210:20SYD - SEA

1 stop43h 35mAsiana Airlines

Deal found 18/12$3,104

Fri 27/1218:13SEA - SYD

1 stop20h 02mAir New Zealand

Sat 8/219:15SYD - SEA

2 stops45h 45mAir New Zealand

Deal found 18/12$3,801

Fri 27/1206:21SEA - SYD

2 stops37h 34mQantas Airways

Sun 5/111:15SYD - SEA

1 stop26h 37mQantas Airways

Deal found 18/12$4,315

Fri 27/1210:40SEA - SYD

1 stop25h 15mKorean Air

Sun 5/109:10SYD - SEA

1 stop23h 09mKorean Air

Deal found 18/12$4,705

Sun 29/1215:05SEA - SYD

2 stops35h 40mMultiple Airlines

Wed 8/107:05SYD - SEA

2 stops30h 25mMultiple Airlines

Deal found 18/12$2,835

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 19 December 2024.

Sat 22/218:31SEA - MEL

1 stop26h 49mMultiple Airlines

Deal found 18/12$721

Tue 25/212:45SEA - PER

2 stops35h 50mMultiple Airlines

Deal found 18/12$899

Sun 26/112:50SEA - SYD

1 stop25h 25mUnited Airlines

Deal found 18/12$949

Fri 21/210:35SEA - MEL

2 stops34h 10mAir Canada

Deal found 18/12$986

Fri 2/513:45SEA - BNE

1 stop24h 20mAir Canada

Deal found 18/12$1,051

Sun 8/619:15SEA - CNS

2 stops23h 50mMultiple Airlines

Deal found 18/12$1,054

Fri 10/119:05SEA - SYD

2 stops31h 40mMultiple Airlines

Deal found 18/12$1,083

Tue 4/317:59SEA - MEL

2 stops34h 01mCathay Pacific

Deal found 18/12$1,105

Fri 2/506:00SEA - BNE

2 stops43h 20mMultiple Airlines

Deal found 18/12$1,141

Fri 9/514:55SEA - ADL

2 stops34h 45mAir Canada

Deal found 18/12$1,154

Mon 20/119:05SEA - SYD

2 stops24h 35mAir Canada

Deal found 18/12$1,183

Tue 25/208:40SEA - PER

1 stop35h 55mSingapore Airlines

Deal found 18/12$1,222

Find flights from Seattle to Australia within your budget

Fly from

Fly to

Route

Depart

Return

Price

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 2/2

19:05-16:40

2 stops26h 35m

Sydney Kingsford Smith

Wed 12/2

11:20-14:30

1 stop22h 10m

$1,432

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sun 2/2

19:05-16:40

2 stops26h 35m

Sydney Kingsford Smith

Mon 10/2

11:20-09:50

1 stop17h 30m

$1,437

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Wed 7/5

23:30-09:55

1 stop41h 25m

Brisbane

Wed 28/5

11:15-19:20

1 stop25h 05m

$1,559

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Wed 5/3

22:35-09:30

1 stop39h 55m

Sydney Kingsford Smith

Wed 19/3

11:10-19:10

1 stop26h 00m

$1,583

SeattleCairns

SEA - CNS

SEACNS

Seattle/Tacoma Intl

Sun 2/2

19:05-17:10

2 stops28h 05m

Cairns

Sun 9/2

06:00-09:50

2 stops21h 50m

$1,602

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Wed 2/4

19:05-07:00

1 stop18h 55m

Brisbane

Tue 15/4

10:00-09:53

1 stop16h 53m

$1,624

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 1/4

19:05-11:05

2 stops23h 00m

Brisbane

Tue 15/4

10:00-09:53

1 stop16h 53m

$1,667

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Sat 17/5

13:45-09:25

2 stops26h 40m

Sydney Kingsford Smith

Mon 26/5

11:50-18:33

2 stops23h 43m

$1,727

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 10/2

14:00-08:35

1 stop23h 35m

Sydney Kingsford Smith

Mon 3/3

14:15-23:31

1 stop28h 16m

$1,780

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Mon 27/1

07:00-07:00

1 stop29h 00m

Sydney Kingsford Smith

Tue 4/3

16:15-18:29

1 stop21h 14m

$1,795

Flights are sorted by cheapest return flights first.

Deals found on 18/12

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 Qantas Airways, Fiji Airways and Philippine 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

8.6

Very Good

65 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

8.6

Very Good

65 reviews

Air Tahiti Nui

8.6

Very Good

65 reviews

Check prices

Reviews

1 / 2

EVA Air

8.4

Very Good

1,273 reviews

Air Tahiti Nui

8.6

Very Good

65 reviews

Check prices

Reviews

1 / 2

ANA

8.4

Very Good

839 reviews

Air Tahiti Nui

8.6

Very Good

65 reviews

Check prices

Reviews

1 / 2

Japan Airlines

8.3

Very Good

1,442 reviews

Air Tahiti Nui

8.6

Very Good

65 reviews

Check prices

Reviews

1 / 2

Asiana Airlines

8.3

Very Good

477 reviews

Air Tahiti Nui

8.6

Very Good

65 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 United Airlines, which is currently one of the cheapest options available, starting at $949. Air Canada flights start at $986 while deals on Cathay Pacific start at $1,105 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$1,197	Average$1,991	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,270	Average$1,802	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 $721

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 22/2. 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 19 December 2024.

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 19 December 2024.

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 19 December 2024.

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

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 19 December 2024.