How long is the flight from Seattle to Australia?

Delta, United Airlines, and Qantas Airways can get you from Seattle to Australia in just under 20h 19m. Your travel time can differ by up to 4h 21m. There are 11822 km between Seattle and Australia. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops. Find deals

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

To fly one-way, consider booking your trip with Philippine Airlines, which is currently one of the cheapest options available, starting at $607. Air Canada flights start at $624 while deals on Qantas Airways start at $1,328 one-way. Find deals

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. Find deals

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).

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.

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.

$585+ Flights from Seattle to Australia

Cheap flight deals from Seattle to Australia

Round-trip from	$1,211
One-way from	$585
Popular in	December
Cheapest in	August
Average price	$1,486

Air Canada
11/1-24/1
2 total stops
62h 16m total
Seattle to Australia

Search Deals

Philippine Airlines
18/3
1 total stop
41h 20m total
Seattle to Australia

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($420 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($72 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Find flight deals from Seattle to Australia

Enter your travel dates to find the best prices.

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 25 November 2025.

Fri 28/1115:40SEA - BNE

1 stop23h 05mMultiple Airlines

Mon 8/1219:40BNE - SEA

1 stop18h 55mMultiple Airlines

Deal found 22/11$1,268

Fri 5/1210:05SEA - BNE

1 stop28h 40mMultiple Airlines

Mon 8/1219:40BNE - SEA

1 stop18h 55mMultiple Airlines

Deal found 21/11$1,270

Fri 28/1115:40SEA - BNE

1 stop23h 05mAir Canada

Fri 5/1210:45BNE - SEA

1 stop21h 46mAir Canada

Deal found 22/11$1,282

Sat 6/1220:00SEA - BNE

1 stop18h 45mAir Canada

Fri 16/110:45BNE - SEA

1 stop21h 46mAir Canada

Deal found 24/11$1,318

Sat 6/1210:05SEA - BNE

1 stop28h 40mMultiple Airlines

Tue 9/1218:30BNE - SEA

2 stops33h 01mMultiple Airlines

Deal found 22/11$1,321

Mon 1/1205:25SEA - BNE

2 stops32h 55mDelta

Wed 10/1211:05BNE - SEA

1 stop19h 34mDelta

Deal found 22/11$1,324

Thu 4/1212:35SEA - BNE

2 stops24h 55mUnited Airlines

Fri 12/1211:40BNE - SEA

1 stop18h 38mUnited Airlines

Deal found 22/11$1,325

Sun 7/1213:05SEA - BNE

1 stop24h 25mUnited Airlines

Thu 15/111:40BNE - SEA

1 stop22h 04mUnited Airlines

Deal found 24/11$1,341

Mon 8/1217:59SEA - BNE

1 stop20h 21mDelta

Wed 14/111:05BNE - SEA

2 stops25h 24mDelta

Deal found 24/11$1,347

Mon 15/1205:00SEA - BNE

2 stops32h 30mUnited Airlines

Thu 15/111:40BNE - SEA

2 stops27h 35mUnited Airlines

Deal found 24/11$1,348

Sun 30/1107:00SEA - BNE

1 stop30h 30mUnited Airlines

Sun 14/1211:40BNE - SEA

2 stops28h 48mUnited Airlines

Deal found 22/11$1,358

Wed 31/1206:00SEA - SYD

1 stop32h 00mQantas Airways

Tue 10/207:05SYD - SEA

2 stops24h 24mQantas Airways

Deal found 23/11$1,528

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 25 November 2025.

Fri 5/1213:40SEA - BNE

2 stops24h 40mDelta

Fri 12/1210:40BNE - SEA

2 stops31h 40mDelta

Deal found 22/11$1,324

Thu 4/1217:11SEA - BNE

1 stop20h 19mUnited Airlines

Wed 10/1211:40BNE - SEA

1 stop24h 52mUnited Airlines

Deal found 22/11$1,325

Tue 13/115:57SEA - ADL

2 stops24h 28mQantas Airways

Sat 28/216:10ADL - SEA

2 stops22h 18mQantas Airways

Deal found 24/11$1,748

Sat 28/220:00SEA - ADL

2 stops25h 50mAir Canada

Wed 4/318:55ADL - SEA

2 stops42h 51mAir Canada

Deal found 22/11$1,757

Mon 13/420:00SEA - AVV

2 stops31h 05mMultiple Airlines

Tue 28/420:55AVV - SEA

2 stops29h 38mMultiple Airlines

Deal found 23/11$1,872

Sun 22/206:10SEA - CNS

2 stops33h 45mCathay Pacific

Thu 26/211:25CNS - SEA

2 stops28h 23mCathay Pacific

Deal found 22/11$2,109

Sun 8/309:45SEA - PER

1 stop23h 10mSingapore Airlines

Wed 11/313:50PER - SEA

1 stop33h 20mSingapore Airlines

Deal found 23/11$2,257

Tue 13/116:05SEA - ADL

2 stops50h 05mQatar Airways

Sat 28/222:00ADL - SEA

1 stop32h 10mQatar Airways

Deal found 23/11$2,550

Fri 5/1209:30SEA - BNE

2 stops28h 50mDelta

Wed 10/1211:05BNE - SEA

2 stops23h 49mDelta

Deal found 22/11$1,324

Thu 4/1219:34SEA - BNE

1 stop17h 56mUnited Airlines

Sat 13/1211:40BNE - SEA

1 stop29h 35mUnited Airlines

Deal found 22/11$1,325

Sun 10/509:02SEA - MCY

2 stops33h 08mAir New Zealand

Sat 16/507:00MCY - SEA

3 stops52h 36mAir New Zealand

Deal found 22/11$2,819

Thu 4/1212:35SEA - BNE

2 stops24h 55mUnited Airlines

Fri 12/1211:40BNE - SEA

1 stop18h 38mUnited Airlines

Deal found 22/11$1,325

Fri 20/217:50SEA - BNE

1 stop20h 30mDelta

Sun 1/310:40BNE - SEA

1 stop20h 19mDelta

Deal found 21/11$1,341

Fri 5/1212:35SEA - BNE

2 stops24h 55mUnited Airlines

Mon 8/1211:40BNE - SEA

1 stop24h 52mUnited Airlines

Deal found 22/11$1,325

Wed 4/311:20SEA - BNE

2 stops27h 00mDelta

Wed 18/310:05BNE - SEA

2 stops30h 58mDelta

Deal found 23/11$1,347

Thu 4/1219:34SEA - BNE

1 stop17h 56mUnited Airlines

Sun 14/1211:40BNE - SEA

1 stop24h 52mUnited Airlines

Deal found 22/11$1,325

Tue 13/115:40SEA - ADL

2 stops30h 10mAir Canada

Sat 28/206:10ADL - SEA

2 stops26h 51mAir Canada

Deal found 22/11$1,790

Fri 6/300:59SEA - DRW

2 stops41h 31mAmerican Airlines

Wed 11/312:50DRW - SEA

2 stops26h 16mAmerican Airlines

Deal found 22/11$3,612

Tue 3/320:00SEA - AVV

2 stops24h 50mMultiple Airlines

Thu 12/306:00AVV - SEA

2 stops21h 31mMultiple Airlines

Deal found 23/11$1,946

Tue 9/1219:34SEA - BNE

1 stop17h 56mUnited Airlines

Thu 15/111:40BNE - SEA

1 stop17h 49mUnited Airlines

Deal found 24/11$1,341

Wed 7/117:53SEA - HBA

2 stops29h 22mQantas Airways

Wed 14/114:35HBA - SEA

2 stops25h 17mQantas Airways

Deal found 22/11$2,061

Tue 10/319:05SEA - MEL

2 stops33h 55mMultiple Airlines

Mon 23/300:45MEL - SEA

2 stops36h 02mMultiple Airlines

Deal found 23/11$1,952

Sun 8/319:32SEA - BNE

1 stop17h 58mUnited Airlines

Thu 12/310:40BNE - SEA

1 stop22h 34mUnited Airlines

Deal found 22/11$1,341

Tue 20/111:17SEA - SYD

1 stop24h 33mDelta

Tue 17/210:40SYD - SEA

1 stop23h 04mDelta

Deal found 22/11$1,720

Thu 15/106:20SEA - PER

2 stops32h 35mCathay Pacific

Mon 16/208:30PER - SEA

2 stops29h 18mCathay Pacific

Deal found 22/11$2,339

Sun 10/517:40SEA - MCY

2 stops34h 25mQantas Airways

Sat 16/516:50MCY - SEA

2 stops46h 59mQantas Airways

Deal found 24/11$2,130

Wed 21/121:30SEA - PER

2 stops45h 20mMultiple Airlines

Tue 17/222:55PER - SEA

1 stop35h 45mMultiple Airlines

Deal found 22/11$2,016

Wed 18/213:38SEA - SYD

2 stops23h 52mDelta

Mon 9/313:15SYD - SEA

2 stops21h 30mDelta

Deal found 22/11$1,726

Thu 15/106:20SEA - PER

2 stops32h 35mCathay Pacific

Wed 18/208:30PER - SEA

2 stops28h 17mCathay Pacific

Deal found 22/11$2,339

Sat 28/216:50SEA - MEL

1 stop21h 40mQantas Airways

Wed 4/316:25MEL - SEA

2 stops22h 33mQantas Airways

Deal found 23/11$2,208

Last-minute flights from Seattle to Australia
Discover last-minute flight deals from Seattle to Australia. Data last updated 25 November 2025 and is based on user searches.

Sun 30/1107:00SEA - BNE

1 stop30h 30mUnited Airlines

Sun 14/1211:40BNE - SEA

2 stops28h 48mUnited Airlines

Deal found 22/11$1,358

Sun 30/1105:45SEA - BNE

2 stops41h 10mAir Canada

Sun 14/1211:05BNE - SEA

2 stops40h 26mAir Canada

Deal found 22/11$1,417

Sun 30/1115:40SEA - BNE

1 stop23h 05mAir Canada

Sat 13/1206:35BNE - SEA

2 stops44h 56mAir Canada

Deal found 22/11$1,421

Sun 30/1121:30SEA - BNE

2 stops39h 15mMultiple Airlines

Mon 8/1219:40BNE - SEA

1 stop18h 55mMultiple Airlines

Deal found 22/11$1,592

Sun 30/1115:40SEA - SYD

1 stop22h 55mAir Canada

Sun 14/1211:20SYD - SEA

1 stop26h 56mAir Canada

Deal found 21/11$1,612

Sun 30/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Sun 7/1214:50SYD - SEA

2 stops25h 53mMultiple Airlines

Deal found 24/11$1,691

Sun 30/1107:00SEA - BNE

1 stop30h 30mUnited Airlines

Tue 9/1206:05BNE - SEA

2 stops24h 13mUnited Airlines

Deal found 22/11$1,722

Mon 1/1209:30SEA - BNE

2 stops28h 50mDelta

Wed 10/1211:05BNE - SEA

2 stops21h 54mDelta

Deal found 22/11$1,324

Tue 2/1219:34SEA - BNE

1 stop17h 56mUnited Airlines

Sun 14/1211:40BNE - SEA

2 stops28h 48mUnited Airlines

Deal found 22/11$1,348

Tue 2/1217:00SEA - BNE

2 stops45h 20mDelta

Wed 10/1211:05BNE - SEA

2 stops23h 49mDelta

Deal found 22/11$1,364

Thu 4/1217:11SEA - BNE

1 stop20h 19mUnited Airlines

Mon 8/1211:40BNE - SEA

1 stop24h 52mUnited Airlines

Deal found 22/11$1,325

Thu 4/1219:11SEA - BNE

2 stops43h 09mDelta

Wed 10/1211:05BNE - SEA

2 stops21h 54mDelta

Deal found 22/11$1,367

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 25 November 2025.

Wed 18/322:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 23/11$585

Wed 25/322:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 22/11$598

Sun 30/1121:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 22/11$607

Thu 16/423:05SEA - SYD

1 stop41h 40mPhilippine Airlines

Deal found 21/11$613

Tue 23/1220:00SEA - BNE

1 stop18h 45mAir Canada

Deal found 22/11$624

Mon 9/310:05SEA - BNE

2 stops32h 25mAir Canada

Deal found 23/11$660

Tue 12/523:10SEA - BNE

1 stop41h 55mPhilippine Airlines

Deal found 24/11$667

Sat 29/1105:50SEA - BNE

1 stop32h 55mAir Canada

Deal found 24/11$681

Thu 5/321:30SEA - MEL

1 stop40h 05mPhilippine Airlines

Deal found 22/11$687

Tue 10/306:45SEA - BNE

2 stops30h 45mUnited Airlines

Deal found 23/11$689

Sun 8/208:25SEA - MEL

2 stops33h 20mMultiple Airlines

Deal found 23/11$695

Wed 18/314:35SEA - SYD

2 stops28h 00mMultiple Airlines

Deal found 23/11$697

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 5/12

13:40-08:20

2 stops24h 40m

Brisbane

Fri 12/12

10:40-00:20

2 stops31h 40m

$1,324

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 5/12

09:30-08:20

2 stops28h 50m

Brisbane

Wed 10/12

11:05-16:54

2 stops23h 49m

$1,324

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 4/12

17:11-07:30

1 stop20h 19m

Brisbane

Wed 10/12

11:40-18:32

1 stop24h 52m

$1,325

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 4/12

19:34-07:30

1 stop17h 56m

Brisbane

Sat 13/12

11:40-23:15

1 stop29h 35m

$1,325

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 4/12

12:35-07:30

2 stops24h 55m

Brisbane

Fri 12/12

11:40-12:18

1 stop18h 38m

$1,325

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 5/12

12:35-07:30

2 stops24h 55m

Brisbane

Mon 8/12

11:40-18:32

1 stop24h 52m

$1,325

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 4/12

19:34-07:30

1 stop17h 56m

Brisbane

Sun 14/12

11:40-18:32

1 stop24h 52m

$1,325

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 20/2

17:50-08:20

1 stop20h 30m

Brisbane

Sun 1/3

10:40-12:59

1 stop20h 19m

$1,341

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 9/12

19:34-07:30

1 stop17h 56m

Brisbane

Thu 15/1

11:40-11:29

1 stop17h 49m

$1,341

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Sun 8/3

19:32-06:30

1 stop17h 58m

Brisbane

Thu 12/3

10:40-16:14

1 stop22h 34m

$1,341

Flights are sorted by cheapest return flights first.

Deals found on 22/11

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Australia

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

Currently, July is the cheapest month in which you can book a flight from Seattle to Australia (average of $828). Flying from Seattle to Australia in December is currently the most expensive (average of $1,308). 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?

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from Seattle to Australia by exploring options for tickets in the evening.

Reviews of airlines servicing Australia

Read reviews from past customers who have flown with United Airlines and Air Canada from Seattle to Australia. 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.

United Airlines

7.4

Good

9,044 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,044 reviews

United Airlines

7.4

Good

9,044 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Air Canada

7.1

Good

10,469 reviews

United Airlines

7.4

Good

9,044 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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.
How long is the flight from Seattle to Australia?
Delta, United Airlines, and Qantas Airways can get you from Seattle to Australia in just under 20h 19m. Your travel time can differ by up to 4h 21m. There are 11822 km between Seattle and Australia. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from Seattle to Australia one-way?
To fly one-way, consider booking your trip with Philippine Airlines, which is currently one of the cheapest options available, starting at $607. Air Canada flights start at $624 while deals on Qantas Airways start at $1,328 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, July is the cheapest month in which you can book a flight from Seattle to Australia (average of $828). Flying from Seattle to Australia in December is currently the most expensive (average of $1,308). 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$1,237	Average$2,106	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,301	Average$1,803	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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Cheap flights from Seattle to Australia from $585

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Australia

Keep the following information in mind while searching for Seattle to Australia flight deals. Data was last updated 25 November 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 25 November 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 25 November 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Australia

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 25 November 2025.

Reviews of airlines servicing Australia

Read reviews from past customers who have flown with United Airlines and Air Canada from Seattle to Australia. 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?

How long is the flight 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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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 25 November 2025.