What airlines fly to Australia?

United Airlines, Air Canada and Qantas Airways are the top three most popular airlines that fly to Australia from State of Washington according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 11 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

How long is the flight from State of Washington to Australia?

Flight times from State of Washington to Australia vary, but if you’re flying out of Spokane and flying into Sydney (one of the most popular routes), then the duration is 19h 25m on average. Another popular route from State of Washington to Australia is flying from Seattle to Sydney, which will take roughly 21h 10m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Washington to Australia?

Air Canada, American Airlines, and Cathay Pacific are the most popular carriers operating from Washington to Australia

When did momondo last update prices for flights from Washington to Australia?

Prices for flights from Washington to Australia are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Australia?

As of February 2026, there are 11 operators available to choose from for flights from Washington to Australia.

How old do you have to be to fly from Washington to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$404 Cheap Flights from Washington to Australia in 2026

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Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 pm - 7:45 am

SEA

BNE

18h 45m

1 stop

10:00 am - 6:30 pm

BNE

SEA

25h 30m

1 stop

$804Air Canada

Tue, Mar 10 - Sun, May 10

3:40 pm - 8:45 am

SEA

BNE

23h 05m

1 stop

10:45 am - 7:16 pm

BNE

SEA

26h 31m

1 stop

$809Air Canada

Thu, Feb 19 - Wed, Mar 4

5:59 pm - 11:50 am

SEA

SYD

24h 51m

2 stops

1:20 pm - 8:22 pm

SYD

SEA

24h 02m

2 stops

$883Multiple Airlines

Tue, Apr 21 - Wed, May 13

10:08 am - 7:25 am

PDX

SYD

26h 17m

1 stop

2:00 pm - 11:52 am

SYD

PDX

39h 52m

2 stops

$890Multiple Airlines

Fri, Mar 6 - Fri, Mar 13

6:25 am - 9:00 am

PDX

SYD

31h 35m

1 stop

7:15 pm - 10:02 pm

SYD

PDX

44h 47m

2 stops

$911Qantas Airways

Tue, Feb 17 - Tue, Mar 10

6:25 am - 8:50 pm

PDX

SYD

43h 25m

2 stops

11:20 am - 5:13 pm

SYD

PDX

24h 53m

1 stop

$913Qantas Airways

Mon, Feb 23 - Mon, Mar 2

5:38 pm - 9:30 am

PDX

MEL

21h 52m

1 stop

12:00 pm - 5:08 pm

MEL

PDX

23h 08m

1 stop

$959American Airlines

Thu, Mar 19 - Tue, Mar 24

11:48 am - 6:45 am

PDX

MEL

25h 57m

2 stops

9:45 am - 3:10 pm

MEL

PDX

22h 25m

1 stop

$963American Airlines

Fri, May 8 - Thu, May 21

11:45 am - 6:50 am

SEA

PER

28h 05m

1 stop

12:10 am - 10:05 am

PER

SEA

24h 55m

1 stop

$984Cathay Pacific

Tue, Apr 7 - Mon, Apr 27

11:45 am - 10:40 pm

SEA

PER

43h 55m

1 stop

12:10 am - 10:05 am

PER

SEA

24h 55m

1 stop

$985Cathay Pacific

Tue, Apr 7 - Mon, Apr 27

Qantas Airways flights from State of Washington to Australia

Our best Qantas Airways deals on State of Washington to Australia flight tickets

Qantas Airways

Feb 8

SEA6:00 amSeattle/Tacoma Intl

38h 35m

2 stops

MEL3:35 pmMelbourne

Feb 14

MEL12:00 pmMelbourne

24h 00m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$904

Qantas Airways

Feb 17

PDX6:25 amPortland

31h 35m

1 stop

SYD9:00 amSydney Kingsford Smith

Mar 10

SYD7:15 pmSydney Kingsford Smith

44h 47m

2 stops

PDX10:02 pmPortland

$911

Qantas Airways

Feb 7

SEA6:00 amSeattle/Tacoma Intl

32h 00m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 24

SYD7:15 pmSydney Kingsford Smith

42h 42m

2 stops

SEA6:57 pmSeattle/Tacoma Intl

$930

Air Canada flights from State of Washington to Australia

Our best Air Canada deals on State of Washington to Australia flight tickets

Air Canada

Mar 10

SEA8:00 pmSeattle/Tacoma Intl

18h 45m

1 stop

BNE7:45 amBrisbane

May 10

BNE10:00 amBrisbane

25h 30m

1 stop

SEA6:30 pmSeattle/Tacoma Intl

$804

Air Canada

Feb 19

SEA3:40 pmSeattle/Tacoma Intl

23h 05m

1 stop

BNE8:45 amBrisbane

Mar 4

BNE10:45 amBrisbane

26h 31m

1 stop

SEA7:16 pmSeattle/Tacoma Intl

$809

Air Canada

Feb 19

SEA9:55 amSeattle/Tacoma Intl

28h 50m

1 stop

BNE8:45 amBrisbane

Mar 4

BNE10:45 amBrisbane

22h 16m

1 stop

SEA3:01 pmSeattle/Tacoma Intl

$810

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Tue 3/10

8:00 pm-7:45 am

1 stop18h 45m

Brisbane

Sun 5/10

10:00 am-6:30 pm

1 stop25h 30m

$804

SeattleBrisbane

SEA - BNE

SEABNE

Seattle/Tacoma Intl

Thu 2/19

3:40 pm-8:45 am

1 stop23h 05m

Brisbane

Wed 3/4

10:45 am-7:16 pm

1 stop26h 31m

$809

SeattleSydney

SEA - SYD

SEASYD

Seattle/Tacoma Intl

Tue 4/21

5:59 pm-11:50 am

2 stops24h 51m

Sydney Kingsford Smith

Wed 5/13

1:20 pm-8:22 pm

2 stops24h 02m

$883

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 3/6

10:08 am-7:25 am

1 stop26h 17m

Sydney Kingsford Smith

Fri 3/13

2:00 pm-11:52 am

2 stops39h 52m

$890

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 2/17

6:25 am-9:00 am

1 stop31h 35m

Sydney Kingsford Smith

Tue 3/10

7:15 pm-10:02 pm

2 stops44h 47m

$911

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 2/23

6:25 am-8:50 pm

2 stops43h 25m

Sydney Kingsford Smith

Mon 3/2

11:20 am-5:13 pm

1 stop24h 53m

$913

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 3/19

5:38 pm-9:30 am

1 stop21h 52m

Melbourne

Tue 3/24

12:00 pm-5:08 pm

1 stop23h 08m

$959

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

11:48 am-6:45 am

2 stops25h 57m

Melbourne

Thu 5/21

9:45 am-3:10 pm

1 stop22h 25m

$963

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

11:45 am-6:50 am

1 stop28h 05m

Perth

Mon 4/27

12:10 am-10:05 am

1 stop24h 55m

$984

SeattlePerth

SEA - PER

SEAPER

Seattle/Tacoma Intl

Tue 4/7

11:45 am-10:40 pm

1 stop43h 55m

Perth

Mon 4/27

12:10 am-10:05 am

1 stop24h 55m

$985

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Australia?

The month of August is, on average, the cheapest month to fly to Australia from State of Washington, with most prices found around $846. If you aren’t able to travel during the month of August, then book flights to Australia from State of Washington during September instead. Flights to Australia in September, while not as cheap as those in August, still average around $860.

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

You are more likely to see cheaper flights to Australia from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,056 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from State of Washington for as low as $876 on momondo.

Can stopping save me money on State of Washington to Australia flights?

You could potentially save up to 21% on your flight if you consider stops on a State of Washington to Australia flight.

Cheap State of Washington to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Australia

Fastest flight time	17h 55m
Direct flights	None

The fastest flight from State of Washington to Australia takes 17h 55m

There are no direct flights from State of Washington to Australia. There are no popular flight routes from State of Washington to Australia.

Search flight deals

When did momondo last update prices for flights from Washington to Australia?
Prices for flights from Washington to Australia are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Australia?
As of February 2026, there are 11 operators available to choose from for flights from Washington to Australia.
How old do you have to be to fly from Washington to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Australia

Compare and see reviews for airlines that fly from State of Washington to Australia with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $97	Free Cancellation	Rating 8.0 11,848 reviews	Search Alaska Airlines flights
Delta	PriceFrom $491	Free Cancellation	Rating 7.9 8,166 reviews	Search Delta flights
ANA	PriceFrom $583	Free Cancellation	Rating 8.4 1,087 reviews	Search ANA flights
Qantas Airways	PriceFrom $647	Free Cancellation	Rating 7.5 988 reviews	Search Qantas Airways flights
Philippine Airlines	PriceFrom $758	Free Cancellation	Rating 7.2 953 reviews	Search Philippine Airlines flights
Air Canada	PriceFrom $779	Free Cancellation	Rating 7.1 10,697 reviews	Search Air Canada flights
American Airlines	PriceFrom $804	Free Cancellation	Rating 7.2 11,245 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $812	Free Cancellation	Rating 7.8 2,831 reviews	Search Hawaiian Airlines flights
United Airlines	PriceFrom $830	Free Cancellation	Rating 7.4 9,246 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $1,265	Free Cancellation	Rating 8.2 1,451 reviews	Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Australia?

Finding the right flight to Australia from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

Can I find flights from Washington to Australia with flexible booking policies on momondo?

All flight searches from Washington to Australia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Australia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Washington.

I’m not ready to book a flight from Washington to Australia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Australia, momondo offers a useful price alert feature which will track prices for flights to Australia from Washington and alert you when they change.

An easier way to manage your Australia trip

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Feeling lucky

Popular cities in Australia

Flights to Sydneyfrom $674

Flights to Melbournefrom $700

Flights to Brisbanefrom $663

Flights to Perthfrom $973

Flights to Adelaidefrom $758

Flights to Cairnsfrom $712

Flights to Coolangattafrom $871

Flights to Hobartfrom $976

Flights to Darwinfrom $1,155

Flights to Canberrafrom $733

Flights to Maroochydorefrom $1,121

Flights to Launcestonfrom $1,214

Cheap flights from Washington to Australia from $416

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Australia departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Washington to Australia

Cheap round-trip flights

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Qantas Airways flights from State of Washington to Australia

Our best Qantas Airways deals on State of Washington to Australia flight tickets

Air Canada flights from State of Washington to Australia

Our best Air Canada deals on State of Washington to Australia flight tickets

momondo Fare Finder

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

See travel insights to Australia from

How to get the cheapest flight ticket from State of Washington to Australia

What is the cheapest month to fly to Australia?

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

Can stopping save me money on State of Washington to Australia flights?

You could potentially save up to 21% on your flight if you consider stops on a State of Washington to Australia flight.

What is the cheapest airline that flies from Washington to Australia?

Air Canada, American Airlines, and Cathay Pacific are the most popular carriers operating from Washington to Australia

What airlines fly to Australia?

How long is the flight from State of Washington to Australia?

Cheap State of Washington to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Australia

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington to Australia?

How many operators does momondo search for flights from Washington to Australia?

How old do you have to be to fly from Washington to Australia?

What documentation or ID do you need to fly to Australia?

Best airlines flying from State of Washington to Australia

Compare and see reviews for airlines that fly from State of Washington to Australia with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Australia?

Can I find flights from Washington to Australia with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Australia?

I’m not ready to book a flight from Washington to Australia right now. Can momondo alert me if prices change?

An easier way to manage your Australia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

According to popular flight searches on momondo this year

Australia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Australia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Australia

List of cabin classes available on flights landing in Australia. Availability may vary depending on flight origin and airline.

Complete your trip to Australia

Explore popular destinations other users love

According to popular flight searches on momondo this year