How long is the flight from Australia to Seattle?

Airlines like American Airlines, Delta, and United Airlines fly from Australia to Seattle in about 27h 22m. The time it takes to get you to your destination can typically vary by up to 1h 48m. Australia and Seattle are separated by a distance of 12463 km. This flight may include one or multiple stops.

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

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $572. However, be on the lookout for offers from Air Canada and Hawaiian Airlines, as they are both options that can get you from Australia to Seattle for a low price.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from Australia to Seattle?

The most popular route from Australia to Seattle is Brisbane - Seattle/Tacoma Intl. You may also consider Melbourne - Seattle/Tacoma Intl or Sydney Kingsford Smith - Seattle/Tacoma Intl.

What are the most popular airlines that fly from Australia to Seattle?

Air Canada, United Airlines and Qantas Airways are the most popular airlines when flying from Australia to Seattle.

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

When flying from Australia to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Australia to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.

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

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

How can I find direct flights from Australia to Seattle?

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

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

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

$772+ Cheap Flights from Australia to Seattle

Cheap flight deals from Australia to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Australia to Seattle
Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Mon 5/1010:10 -

1 stop20h 57m

Sun 18/1006:00 -

2 stops32h 05m

Deal found 20/9$1,284

Mon 5/1010:10 -

2 stops25h 23m

Sun 18/1011:44 -

2 stops26h 21m

Deal found 18/9$1,301

Wed 4/1111:10 -

2 stops25h 43m

Wed 11/1113:35 -

1 stop24h 25m

Deal found 20/9$1,308

Mon 5/1010:15 -

2 stops22h 35m

Tue 3/1114:30 -

1 stop23h 00m

Deal found 18/9$1,311

Mon 5/1010:15 -

2 stops26h 21m

Sun 18/1007:15 -

2 stops30h 35m

Deal found 18/9$1,312

Mon 19/1010:15 -

1 stop20h 25m

Mon 26/1005:30 -

2 stops31h 50m

Deal found 21/9$1,313

Mon 19/1010:10 -

1 stop20h 57m

Mon 26/1016:37 -

1 stop22h 23m

Deal found 21/9$1,316

Mon 5/1010:15 -

1 stop20h 12m

Wed 4/1112:30 -

1 stop25h 00m

Deal found 18/9$1,323

Tue 6/1010:15 -

2 stops22h 35m

Wed 4/1117:45 -

1 stop19h 45m

Deal found 18/9$1,330

Mon 5/1010:15 -

1 stop24h 29m

Sat 7/1121:35 -

1 stop39h 55m

Deal found 18/9$1,344

Tue 3/1110:45 -

1 stop16h 47m

Tue 10/1110:10 -

1 stop28h 35m

Deal found 20/9$1,391

Tue 20/1010:00 -

1 stop17h 05m

Tue 27/1019:05 -

1 stop19h 40m

Deal found 19/9$1,398

Best flights from Australia to Seattle
Discover carefully curated flight deals from Australia to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Wed 4/1111:10 -

1 stop29h 10m

Wed 11/1113:35 -

1 stop24h 25m

Deal found 20/9$1,308

Tue 3/1110:40 -

2 stops27h 22m

Tue 10/1109:25 -

2 stops28h 05m

Deal found 18/9$1,311

Fri 5/311:20 -

2 stops27h 52m

Wed 31/317:30 -

1 stop20h 00m

Deal found 17/9$1,409

Tue 20/1005:05 -

2 stops30h 27m

Tue 27/1019:05 -

1 stop19h 40m

Deal found 19/9$1,429

Tue 3/1106:00 -

2 stops27h 54m

Tue 10/1112:47 -

2 stops32h 08m

Deal found 19/9$1,549

Wed 4/1107:15 -

2 stops22h 59m

Wed 11/1119:35 -

1 stop19h 55m

Deal found 20/9$1,771

Thu 8/1006:00 -

2 stops24h 16m

Fri 23/1017:59 -

2 stops23h 41m

Deal found 18/9$1,798

Tue 3/1117:05 -

1 stop30h 00m

Tue 10/1108:40 -

1 stop38h 05m

Deal found 21/9$1,824

Sun 18/1023:45 -

1 stop30h 40m

Sat 24/1016:25 -

1 stop31h 25m

Deal found 21/9$1,864

Wed 21/1009:00 -

1 stop29h 05m

Sun 25/1022:30 -

1 stop39h 00m

Deal found 18/9$2,050

Thu 5/1108:50 -

3 stops28h 32m

Thu 12/1115:35 -

3 stops30h 20m

Deal found 21/9$2,102

Wed 21/1012:15 -

2 stops37h 20m

Sun 25/1013:00 -

2 stops42h 55m

Deal found 17/9$2,343

Thu 8/1010:15 -

1 stop22h 35m

Mon 9/1115:13 -

1 stop22h 17m

Deal found 18/9$1,311

Sun 18/1010:10 -

2 stops24h 38m

Mon 2/1116:30 -

1 stop21h 30m

Deal found 19/9$1,378

Tue 6/1010:15 -

2 stops24h 40m

Tue 3/1117:45 -

1 stop19h 45m

Deal found 18/9$1,311

Wed 4/1110:40 -

2 stops27h 22m

Wed 11/1111:30 -

2 stops26h 00m

Deal found 21/9$1,313

Thu 5/1108:05 -

2 stops23h 55m

Thu 12/1113:35 -

2 stops25h 30m

Deal found 21/9$1,621

Mon 2/1112:45 -

2 stops27h 34m

Mon 23/1112:45 -

2 stops26h 45m

Deal found 17/9$1,668

Mon 19/1010:15 -

1 stop20h 25m

Mon 26/1005:30 -

2 stops31h 50m

Deal found 21/9$1,313

Sun 25/1019:50 -

2 stops30h 37m

Thu 29/1010:10 -

1 stop28h 35m

Deal found 21/9$1,643

Mon 2/1112:45 -

1 stop18h 35m

Mon 16/1113:16 -

1 stop26h 14m

Deal found 18/9$1,681

Sat 24/1014:25 -

2 stops25h 42m

Sat 31/1016:20 -

2 stops27h 55m

Deal found 21/9$1,868

Thu 24/1211:20 -

1 stop23h 12m

Thu 31/1217:35 -

1 stop19h 55m

Deal found 21/9$1,892

Wed 21/1014:35 -

1 stop27h 35m

Sun 25/1007:10 -

2 stops34h 20m

Deal found 21/9$1,727

Thu 8/1017:10 -

1 stop37h 15m

Fri 23/1016:25 -

1 stop31h 25m

Deal found 18/9$1,953

Sat 3/1009:15 -

2 stops24h 35m

Sun 8/1117:45 -

1 stop19h 45m

Deal found 18/9$1,379

Tue 3/1121:10 -

1 stop25h 55m

Tue 10/1111:00 -

2 stops37h 25m

Deal found 19/9$1,694

Tue 24/1106:10 -

2 stops30h 42m

Tue 15/1215:15 -

2 stops25h 10m

Deal found 20/9$2,098

Tue 3/1106:35 -

3 stops25h 37m

Tue 10/1115:59 -

2 stops25h 51m

Deal found 19/9$2,009

Wed 4/1108:15 -

2 stops28h 06m

Wed 11/1114:59 -

2 stops24h 56m

Deal found 20/9$1,695

Find flight deals from Australia to Seattle

Round-trip from	$1,284
One-way from	$772
Popular in	December
Cheapest in	August
Average price	$1,661

British Airways
5/10-18/10
3 total stops
53h 02m total
Australia to Seattle

Search Deals

Delta
31/1-31/12
1 total stop
17h 55m total
Australia to Seattle

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($130 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($27 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Thu 5/11

10:40-14:50

1 stop23h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$772

Fastest return journey

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Sun 31/1

10:40-10:35

1 stop17h 55m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$773

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Wed 17/2

10:40-13:00

1 stop20h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$814

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Sun 31/1

19:50-10:35

2 stops32h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$843

SydneySeattle

SYD Sydney Kingsford Smith - SEA Seattle/Tacoma Intl

SYDSEA

Sydney Kingsford Smith

Fri 16/10

10:15-16:45

1 stop24h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$855

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Sun 15/11

20:25-07:05

3 stops50h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$874

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Fri 30/10

20:40-14:20

3 stops56h 40m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$958

BrisbaneSeattle

BNE Brisbane - SEA Seattle/Tacoma Intl

BNESEA

Brisbane

Tue 3/11

23:55-18:54

3 stops36h 59m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$977

MelbourneSeattle

MEL Melbourne - SEA Seattle/Tacoma Intl

MELSEA

Melbourne

Sun 21/2

20:00-09:32

2 stops32h 32m

Seattle/Tacoma Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

$981

PerthSeattle

PER Perth - SEA Seattle/Tacoma Intl

PERSEA

Perth

Thu 18/2

08:35-18:45

1 stop26h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

$989

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Australia to Seattle

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

SYD-SEA

BNE-SEA

CNS-SEA

MEL-SEA

PER-SEA

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 Australia to Seattle

AU0-SEA

SYD-SEA

BNE-SEA

CNS-SEA

MEL-SEA

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

Currently, March is the cheapest month in which you can book a flight from Australia to Seattle (average of $1,247). Flying from Australia to Seattle in December is currently the most expensive (average of $1,730). 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.

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

To ensure you get the cheapest price possible for a flight from Australia to Seattle, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Australia to Seattle, such as Singapore Airlines,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

One would expect that one of a major global airlines has ability to cancel the flight without 50% charge when there are very clear, urgent, and extremely serious health reasons with doctor notes. But one would be wrong.

Singapore Airlines

8.2

Very Good

1,607 reviews

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Qantas Airways

7.5

Good

1,101 reviews

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

United Airlines

7.4

Good

10,226 reviews

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Air Canada

7.1

Good

11,665 reviews

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

American Airlines

7.0

Good

12,081 reviews

Singapore Airlines

8.2

Very Good

1,607 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Sept 2026

SIN - SEA

Related info for your journey

What airport do you fly into for flights to Seattle from Australia?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Australia to Seattle. It is only a 18.4 km journey from Seattle/Tacoma Intl (SEA) to Seattle’s city centre.
How long is the flight from Australia to Seattle?
Airlines like American Airlines, Delta, and United Airlines fly from Australia to Seattle in about 27h 22m. The time it takes to get you to your destination can typically vary by up to 1h 48m. Australia and Seattle are separated by a distance of 12463 km. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Australia to Seattle one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $572. However, be on the lookout for offers from Air Canada and Hawaiian Airlines, as they are both options that can get you from Australia to Seattle for a low price.
What are the most popular routes from Australia to Seattle?
The most popular route from Australia to Seattle is Brisbane - Seattle/Tacoma Intl. You may also consider Melbourne - Seattle/Tacoma Intl or Sydney Kingsford Smith - Seattle/Tacoma Intl.
Can I find deals for flights from Australia to Seattle that include hotel bookings?
Yes. In addition to deals on Australia to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Australia to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Australia to Seattle.
Can I find deals for business class flights from Australia to Seattle?
Yes. Cheapflights offers flight deals from Australia to Seattle 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 Australia to Seattle?
Currently, March is the cheapest month in which you can book a flight from Australia to Seattle (average of $1,247). Flying from Australia to Seattle in December is currently the most expensive (average of $1,730). 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

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Seattle flight routes

Fly from Australia to Seattle on these airlines

United Airlines flights from Australia to Seattle/Tacoma Intl

Top 10 airlines flying from Australia to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$759	Average$1,369	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest$816	Average$1,459	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Air Canada	Cheapest$901	Average$1,465	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$941	Average$1,359	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Australia	Cheapest$949	Average$1,610	FlexibilityNo cancel fee	On-time80%	Search Virgin Australia flights
Qantas Airways	Cheapest$1,056	Average$1,644	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Hawaiian Airlines	Cheapest$1,149	Average$1,820	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights
Japan Airlines	Cheapest$1,269	Average$2,228	FlexibilityNo cancel fee	On-time79%	Search Japan Airlines flights
Air New Zealand	Cheapest$1,376	Average$1,623	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Singapore Airlines	Cheapest$1,499	Average$1,778	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

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

Cheapflights makes it easy to find Australia to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Cheapflights helps you find that perfect flight to Seattle from Australia by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Yes, we can. To see specific flights from Australia to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Australia today and book when prices fit your budget.

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Cheap flights from Australia to Seattle from $772

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Australia to Seattle

Cheapest flights from Australia to SeattleExplore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Best flights from Australia to SeattleDiscover carefully curated flight deals from Australia to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Discover carefully curated flight deals from Australia to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Last-minute flights from Australia to SeattleDiscover last-minute flight deals from Australia to Seattle. Data last updated 22 September 2026 and is based on user searches.

Discover last-minute flight deals from Australia to Seattle. Data last updated 22 September 2026 and is based on user searches.

One-way flights from Australia to SeattleSearch for one-way flight options from Australia to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.

Search for one-way flight options from Australia to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.

Find flight deals from Australia to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Australia to Seattle

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

Cheapflights Insights

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

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

To ensure you get the cheapest price possible for a flight from Australia to Seattle, you should look to book at least 8 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Australia to Seattle, such as Singapore Airlines,Qantas Airways, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Australia to Seattle?

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

What are the most popular routes from Australia to Seattle?

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

How can I find direct flights from Australia to Seattle?

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

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

Travelling to a place near Seattle?

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.

Fly from Australia to Seattle on these airlines

Choose from the following airlines for your flight from Australia to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 22 September 2026.

Alternative routes for Australia to Seattle

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

Complete your trip

Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Australia to Seattle by cabin class

Find flights from Australia to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Australia and Seattle flights

Browse other Australia and Seattle flight options. Last updated on 22 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 22 September 2026.

Top 10 airlines flying from Australia to Seattle

Fly with Cheapflights

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

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

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

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

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Book with flexibility

Travel Smart

Cheapest flights from Australia to Seattle
Explore the most affordable flight options available from Australia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 September 2026.

Best flights from Australia to Seattle
Discover carefully curated flight deals from Australia to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 September 2026.

Last-minute flights from Australia to Seattle
Discover last-minute flight deals from Australia to Seattle. Data last updated 22 September 2026 and is based on user searches.

One-way flights from Australia to Seattle
Search for one-way flight options from Australia to Seattle. Find affordable one-way fares based on user searches. Data last updated 22 September 2026.