How long is the flight from Seattle to Australia?

Delta, United Airlines, and Alaska Airlines can get you from Seattle to Australia in just under 17h 45m. Your travel time can differ by up to 8h 30m. There are 12463 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 $596. Delta flights start at $685 while deals on Air Canada start at $739 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.

$588+ Flights from Seattle to Australia

Cheap flight deals from Seattle to Australia

Round-trip from	$1,308
One-way from	$588
Popular in	December
Cheapest in	August
Average price	$1,511

Air Canada
4/3-18/3
2 total stops
50h 56m total
Seattle to Australia

Search Deals

Philippine Airlines
25/3
1 total stop
41h 20m total
Seattle to Australia

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($361 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($61 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 7 November 2025.

Wed 26/1115:40SEA - BNE

1 stop23h 05mMultiple Airlines

Wed 10/1219:40BNE - SEA

2 stops36h 51mMultiple Airlines

Deal found 5/11$1,317

Mon 1/1212:40SEA - BNE

1 stop25h 40mDelta

Fri 12/1210:40BNE - SEA

1 stop24h 30mDelta

Deal found 7/11$1,333

Mon 10/1112:40SEA - BNE

1 stop25h 40mDelta

Fri 21/1110:40BNE - SEA

1 stop28h 16mDelta

Deal found 6/11$1,334

Tue 2/1213:34SEA - BNE

2 stops48h 46mDelta

Fri 12/1210:40BNE - SEA

1 stop18h 05mDelta

Deal found 5/11$1,357

Thu 27/1105:50SEA - BNE

1 stop32h 55mMultiple Airlines

Wed 10/1219:40BNE - SEA

2 stops36h 51mMultiple Airlines

Deal found 5/11$1,363

Wed 12/1120:00SEA - BNE

1 stop18h 45mMultiple Airlines

Wed 26/1106:10BNE - SEA

2 stops21h 21mMultiple Airlines

Deal found 5/11$1,402

Wed 12/1106:05SEA - BNE

1 stop28h 55mAmerican Airlines

Wed 26/1119:40BNE - SEA

1 stop20h 44mAmerican Airlines

Deal found 5/11$1,408

Thu 11/1205:50SEA - BNE

1 stop32h 55mAir Canada

Wed 24/1210:45BNE - SEA

1 stop30h 01mAir Canada

Deal found 5/11$1,436

Sun 16/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Sat 22/1107:30SYD - SEA

2 stops34h 29mMultiple Airlines

Deal found 7/11$1,437

Sat 15/1106:20SEA - BNE

1 stop28h 40mAmerican Airlines

Tue 25/1119:40BNE - SEA

1 stop20h 44mAmerican Airlines

Deal found 7/11$1,445

Wed 12/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Thu 11/1221:40SYD - SEA

2 stops20h 53mMultiple Airlines

Deal found 5/11$1,553

Wed 12/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Thu 27/1106:20SYD - SEA

2 stops22h 11mMultiple Airlines

Deal found 7/11$1,554

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 7 November 2025.

Fri 20/217:50SEA - BNE

1 stop20h 30mDelta

Sun 1/310:40BNE - SEA

1 stop27h 57mDelta

Deal found 6/11$1,333

Fri 20/312:45SEA - MEL

1 stop26h 15mUnited Airlines

Sat 28/312:00MEL - SEA

1 stop22h 14mUnited Airlines

Deal found 7/11$1,684

Sun 1/308:45SEA - PER

1 stop27h 30mMultiple Airlines

Tue 10/317:45PER - SEA

3 stops32h 10mMultiple Airlines

Deal found 7/11$1,780

Wed 4/207:00SEA - SYD

1 stop17h 45mAlaska Airlines

Thu 19/221:40SYD - SEA

1 stop20h 00mAlaska Airlines

Deal found 7/11$1,784

Sun 15/315:40SEA - ADL

2 stops28h 45mAir Canada

Thu 19/306:10ADL - SEA

2 stops33h 26mAir Canada

Deal found 4/11$1,819

Sat 14/306:10SEA - PER

2 stops33h 45mCathay Pacific

Thu 19/300:25PER - SEA

2 stops37h 11mCathay Pacific

Deal found 6/11$2,045

Tue 13/115:57SEA - HBA

2 stops26h 58mQantas Airways

Tue 17/216:50HBA - SEA

2 stops22h 12mQantas Airways

Deal found 6/11$2,256

Mon 20/416:30SEA - PER

1 stop28h 25mQatar Airways

Thu 23/415:40PER - SEA

1 stop36h 05mQatar Airways

Deal found 4/11$2,402

Fri 13/208:45SEA - PER

1 stop28h 40mSingapore Airlines

Mon 23/201:15PER - SEA

1 stop21h 55mSingapore Airlines

Deal found 7/11$2,416

Wed 3/1212:45SEA - BNE

1 stop25h 35mDelta

Wed 10/1211:05BNE - SEA

1 stop24h 05mDelta

Deal found 7/11$1,333

Sun 11/119:30SEA - HBA

2 stops25h 35mAir New Zealand

Sat 17/116:50HBA - SEA

3 stops41h 54mAir New Zealand

Deal found 7/11$2,928

Mon 1/1212:40SEA - BNE

1 stop25h 40mDelta

Fri 12/1210:40BNE - SEA

1 stop24h 30mDelta

Deal found 7/11$1,333

Wed 4/311:15SEA - BNE

2 stops27h 05mDelta

Wed 18/310:05BNE - SEA

2 stops25h 27mDelta

Deal found 6/11$1,340

Tue 17/212:37SEA - MEL

1 stop26h 23mUnited Airlines

Sun 1/311:30MEL - SEA

2 stops28h 31mUnited Airlines

Deal found 7/11$1,684

Fri 27/207:20SEA - SYD

1 stop17h 25mAlaska Airlines

Thu 5/321:40SYD - SEA

1 stop17h 35mAlaska Airlines

Deal found 7/11$1,784

Mon 1/1213:44SEA - BNE

2 stops24h 36mDelta

Wed 10/1211:05BNE - SEA

1 stop21h 39mDelta

Deal found 7/11$1,340

Wed 11/217:12SEA - MEL

1 stop21h 18mUnited Airlines

Sun 22/211:30MEL - SEA

2 stops28h 31mUnited Airlines

Deal found 6/11$1,684

Tue 10/219:00SEA - BNE

2 stops43h 20mDelta

Fri 27/210:40BNE - SEA

2 stops25h 49mDelta

Deal found 6/11$1,356

Thu 4/1214:40SEA - SYD

1 stop34h 05mAlaska Airlines

Thu 11/1221:40SYD - SEA

1 stop19h 29mAlaska Airlines

Deal found 7/11$1,810

Mon 2/312:15SEA - MEL

1 stop26h 15mUnited Airlines

Thu 12/310:30MEL - SEA

1 stop26h 46mUnited Airlines

Deal found 6/11$1,684

Thu 19/208:45SEA - PER

1 stop35h 50mMultiple Airlines

Tue 10/301:15PER - SEA

2 stops32h 41mMultiple Airlines

Deal found 6/11$2,071

Thu 19/216:55SEA - BNE

2 stops45h 25mDelta

Wed 4/311:05BNE - SEA

2 stops25h 24mDelta

Deal found 6/11$1,356

Wed 15/409:02SEA - MEL

1 stop30h 13mUnited Airlines

Sun 26/410:55MEL - SEA

1 stop26h 53mUnited Airlines

Deal found 5/11$1,685

Fri 5/1206:25SEA - CNS

2 stops34h 35mQantas Airways

Sat 10/115:35CNS - SEA

2 stops45h 47mQantas Airways

Deal found 6/11$2,276

Fri 13/208:45SEA - PER

1 stop39h 45mMultiple Airlines

Tue 24/222:55PER - SEA

1 stop35h 45mMultiple Airlines

Deal found 7/11$2,093

Tue 6/117:50SEA - SYD

1 stop30h 55mAlaska Airlines

Tue 27/121:40SYD - SEA

1 stop18h 20mAlaska Airlines

Deal found 6/11$1,925

Mon 20/410:10SEA - PER

2 stops44h 20mAir Canada

Thu 23/422:40PER - SEA

2 stops25h 53mAir Canada

Deal found 4/11$2,347

Wed 15/411:50SEA - HBA

2 stops52h 45mCathay Pacific

Sun 26/410:20HBA - SEA

2 stops40h 50mCathay Pacific

Deal found 5/11$2,368

Sat 21/217:20SEA - MEL

1 stop21h 40mUnited Airlines

Sat 7/313:00MEL - SEA

2 stops29h 04mUnited Airlines

Deal found 4/11$1,691

Tue 13/115:57SEA - HBA

2 stops26h 58mMultiple Airlines

Tue 17/214:30HBA - SEA

3 stops24h 32mMultiple Airlines

Deal found 6/11$2,148

Last-minute flights from Seattle to Australia
Discover last-minute flight deals from Seattle to Australia. Data last updated 7 November 2025 and is based on user searches.

Mon 10/1112:40SEA - BNE

1 stop25h 40mDelta

Fri 21/1110:40BNE - SEA

1 stop28h 16mDelta

Deal found 6/11$1,334

Wed 12/1114:11SEA - BNE

1 stop24h 09mDelta

Wed 26/1111:05BNE - SEA

1 stop23h 55mDelta

Deal found 7/11$1,333

Wed 12/1120:00SEA - BNE

1 stop18h 45mMultiple Airlines

Wed 26/1106:10BNE - SEA

2 stops21h 21mMultiple Airlines

Deal found 5/11$1,402

Wed 12/1106:05SEA - BNE

1 stop28h 55mAmerican Airlines

Wed 26/1119:40BNE - SEA

1 stop20h 44mAmerican Airlines

Deal found 5/11$1,408

Wed 12/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Thu 11/1221:40SYD - SEA

2 stops20h 53mMultiple Airlines

Deal found 5/11$1,553

Wed 12/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Thu 27/1106:20SYD - SEA

2 stops22h 11mMultiple Airlines

Deal found 7/11$1,554

Sat 15/1106:20SEA - BNE

1 stop28h 40mAmerican Airlines

Tue 25/1119:40BNE - SEA

1 stop20h 44mAmerican Airlines

Deal found 7/11$1,445

Sun 16/1121:30SEA - SYD

1 stop41h 20mMultiple Airlines

Sat 22/1107:30SYD - SEA

2 stops34h 29mMultiple Airlines

Deal found 7/11$1,437

Wed 26/1115:40SEA - BNE

1 stop23h 05mMultiple Airlines

Wed 10/1219:40BNE - SEA

2 stops36h 51mMultiple Airlines

Deal found 5/11$1,317

Thu 27/1105:50SEA - BNE

1 stop32h 55mMultiple Airlines

Wed 10/1219:40BNE - SEA

2 stops36h 51mMultiple Airlines

Deal found 5/11$1,363

Tue 2/1213:34SEA - BNE

2 stops48h 46mDelta

Fri 12/1210:40BNE - SEA

1 stop18h 05mDelta

Deal found 5/11$1,357

Thu 11/1205:50SEA - BNE

1 stop32h 55mAir Canada

Wed 24/1210:45BNE - SEA

1 stop30h 01mAir Canada

Deal found 5/11$1,436

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 7 November 2025.

Wed 25/322:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 5/11$588

Sun 1/321:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 6/11$596

Tue 24/322:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 5/11$605

Sun 22/322:30SEA - SYD

1 stop41h 20mPhilippine Airlines

Deal found 5/11$626

Wed 4/209:49SEA - BNE

1 stop28h 31mDelta

Deal found 6/11$685

Fri 27/322:30SEA - SYD

1 stop41h 15mPhilippine Airlines

Deal found 5/11$686

Sun 15/322:30SEA - MEL

1 stop31h 35mMultiple Airlines

Deal found 6/11$722

Mon 19/120:00SEA - BNE

1 stop18h 45mAir Canada

Deal found 5/11$739

Thu 12/309:45SEA - DRW

2 stops38h 00mMultiple Airlines

Deal found 6/11$766

Sat 21/320:00SEA - BNE

1 stop18h 45mAir Canada

Deal found 5/11$782

Sat 14/205:50SEA - BNE

1 stop32h 55mAir Canada

Deal found 5/11$783

Sun 3/523:05SEA - SYD

2 stops39h 15mMultiple Airlines

Deal found 6/11$805

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Fri 20/2

17:50-08:20

1 stop20h 30m

Brisbane

Sun 1/3

10:40-20:37

1 stop27h 57m

$1,333

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Wed 3/12

12:45-08:20

1 stop25h 35m

Brisbane

Wed 10/12

11:05-17:10

1 stop24h 05m

$1,333

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Mon 1/12

12:40-08:20

1 stop25h 40m

Brisbane

Fri 12/12

10:40-17:10

1 stop24h 30m

$1,333

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Wed 4/3

11:15-08:20

2 stops27h 05m

Brisbane

Wed 18/3

10:05-18:32

2 stops25h 27m

$1,340

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Mon 1/12

13:44-08:20

2 stops24h 36m

Brisbane

Wed 10/12

11:05-14:44

1 stop21h 39m

$1,340

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 10/2

19:00-08:20

2 stops43h 20m

Brisbane

Fri 27/2

10:40-18:29

2 stops25h 49m

$1,356

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 19/2

16:55-08:20

2 stops45h 25m

Brisbane

Wed 4/3

11:05-18:29

2 stops25h 24m

$1,356

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 20/3

12:45-09:00

1 stop26h 15m

Melbourne

Sat 28/3

12:00-16:14

1 stop22h 14m

$1,684

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 17/2

12:37-10:00

1 stop26h 23m

Melbourne

Sun 1/3

11:30-21:01

2 stops28h 31m

$1,684

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 11/2

17:12-09:30

1 stop21h 18m

Melbourne

Sun 22/2

11:30-21:01

2 stops28h 31m

$1,684

Flights are sorted by cheapest return flights first.

Deals found on 6/11

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 $840). Flying from Seattle to Australia in January is currently the most expensive (average of $1,297). 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

9,009 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

9,009 reviews

United Airlines

7.4

Good

9,009 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

10,421 reviews

United Airlines

7.4

Good

9,009 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 Alaska Airlines can get you from Seattle to Australia in just under 17h 45m. Your travel time can differ by up to 8h 30m. There are 12463 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 $596. Delta flights start at $685 while deals on Air Canada start at $739 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 $840). Flying from Seattle to Australia in January is currently the most expensive (average of $1,297). 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$1,229	Average$2,093	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Canada	Cheapest$1,293	Average$1,792	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 $588

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 25/3. 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 7 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 7 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 7 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 7 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 7 November 2025.