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 41% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 12 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

American Airlines, United Airlines, and Delta are the most popular carriers operating from Washington to Australia

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 Seattle and flying into Sydney (one of the most popular routes), then the duration is 20h 56m on average. Another popular route from State of Washington to Australia is flying from Pasco to Sydney, which will take roughly 21h 25m. Keep in mind that layovers or delays could extend your travel time.

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 August 2026, there are 12 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.

$533 Cheap Flights from Washington to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

9:20 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 45m1 stop Vancouver Intl

$923Air Canada

Mon, Sep 14 - Mon, Sep 21

10:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 30m1 stop Vancouver Intl

9:20 am - 2:17 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 57m1 stop Vancouver Intl

$933Air Canada

Mon, Sep 14 - Tue, Sep 22

11:06 am - 12:35 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

31h 29m2 stops Los Angeles Nadi

2:00 pm - 6:26 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

23h 26m2 stops Nadi Los Angeles

$939Multiple Airlines

Sun, Oct 25 - Wed, Nov 4

7:57 pm - 8:35 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

18h 38m1 stop Vancouver Intl

11:20 am - 9:27 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

17h 07m1 stop Vancouver Intl

$949Multiple Airlines

Sun, Oct 25 - Wed, Nov 25

4:30 pm - 9:25 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 55m1 stop Tokyo Haneda

8:55 pm - 11:26 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

43h 31m2 stops Tokyo Haneda San Francisco

$968ANA

Mon, Aug 24 - Sun, Aug 30

3:00 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

9:20 am - 6:32 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 12m1 stop Vancouver Intl

$999Air New Zealand

Sun, Aug 30 - Mon, Sep 14

3:00 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 20m1 stop Vancouver Intl

9:20 am - 6:32 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

26h 12m1 stop Vancouver Intl

$999Air New Zealand

Sun, Aug 30 - Sun, Sep 13

4:30 pm - 7:10 pmSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

33h 40m1 stop Tokyo Haneda

8:55 pm - 2:25 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

34h 30m1 stop Tokyo Haneda

$1,025ANA

Mon, Aug 24 - Sun, Aug 30

9:05 am - 6:55 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 50m1 stop San Francisco

9:30 am - 11:24 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

18h 54m1 stop Los Angeles

$1,040United Airlines

Sun, Aug 30 - Wed, Sep 9

9:05 am - 6:55 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

28h 50m1 stop San Francisco

10:20 am - 2:24 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

21h 04m1 stop San Francisco

$1,040United Airlines

Mon, Aug 31 - Wed, Sep 9

Cheap last minute flights

Enter your travel dates to find the best prices.

5:50 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

32h 30m1 stop Vancouver Intl

9:20 am - 10:47 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 27m1 stop Vancouver Intl

$939Air Canada

Sun, Aug 16 - Tue, Sep 8

10:40 am - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

27h 40m1 stop Vancouver Intl

8:15 pm - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 50m2 stops Brisbane Vancouver Intl

$966Multiple Airlines

Sun, Aug 16 - Sat, Aug 22

7:20 pm - 7:20 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

19h 00m1 stop Vancouver Intl

10:30 am - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

40h 35m2 stops Brisbane Vancouver Intl

$970Air Canada

Sun, Aug 16 - Tue, Sep 8

7:20 pm - 11:55 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

23h 35m2 stops Vancouver Intl Brisbane

8:15 pm - 10:05 amSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

30h 50m2 stops Brisbane Vancouver Intl

$996Multiple Airlines

Sun, Aug 16 - Sat, Aug 22

11:40 am - 6:45 amSEA Seattle/Tacoma Intl-MEL Melbourne

26h 05m1 stop Los Angeles

1:35 pm - 10:26 pmMEL Melbourne-SEA Seattle/Tacoma Intl

25h 51m1 stop Dallas/Fort Worth

$1,013American Airlines

Thu, Aug 13 - Wed, Aug 26

11:40 am - 6:45 amSEA Seattle/Tacoma Intl-MEL Melbourne

26h 05m1 stop Los Angeles

1:35 pm - 11:21 pmMEL Melbourne-SEA Seattle/Tacoma Intl

26h 46m2 stops Dallas/Fort Worth Los Angeles

$1,013American Airlines

Thu, Aug 13 - Wed, Aug 26

11:03 am - 8:15 amSEA Seattle/Tacoma Intl-MEL Melbourne

28h 12m2 stops Denver Intl San Francisco

9:30 am - 7:14 pmMEL Melbourne-SEA Seattle/Tacoma Intl

26h 44m1 stop Los Angeles

$1,036United Airlines

Thu, Aug 13 - Wed, Aug 26

10:55 am - 8:15 amSEA Seattle/Tacoma Intl-MEL Melbourne

28h 20m1 stop San Francisco

9:30 am - 11:34 amMEL Melbourne-SEA Seattle/Tacoma Intl

19h 04m1 stop Los Angeles

$1,036United Airlines

Thu, Aug 13 - Wed, Aug 26

5:02 pm - 7:05 amSEA Seattle/Tacoma Intl-SYD Sydney Kingsford Smith

21h 03m1 stop Los Angeles

5:50 pm - 11:29 pmSYD Sydney Kingsford Smith-SEA Seattle/Tacoma Intl

22h 39m1 stop Los Angeles

$1,077Qantas Airways

Wed, Aug 12 - Sat, Aug 29

2:39 pm - 6:45 amPDX Portland-MEL Melbourne

23h 06m1 stop Los Angeles

9:45 am - 1:25 pmMEL Melbourne-PDX Portland

20h 40m1 stop Los Angeles

$1,181Qantas Airways

Thu, Aug 13 - Wed, Aug 26

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from State of Washington to Australia

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

Air Canada

Sep 14

SEA10:50 amSeattle/Tacoma Intl

27h 30m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 22

SYD9:20 amSydney Kingsford Smith

21h 57m

1 stop

SEA2:17 pmSeattle/Tacoma Intl

$933

Air Canada

Sep 8

SEA3:00 pmSeattle/Tacoma Intl

23h 20m

1 stop

SYD7:20 amSydney Kingsford Smith

Sep 14

SYD9:20 amSydney Kingsford Smith

22h 02m

1 stop

SEA2:22 pmSeattle/Tacoma Intl

$938

Air Canada

Nov 11

SEA3:15 pmSeattle/Tacoma Intl

23h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

Nov 30

SYD11:20 amSydney Kingsford Smith

26h 02m

1 stop

SEA6:22 pmSeattle/Tacoma Intl

$939

ANA flights from State of Washington to Australia

Our best ANA deals on State of Washington to Australia flight tickets

ANA

Aug 24

SEA4:30 pmSeattle/Tacoma Intl

23h 55m

1 stop

SYD9:25 amSydney Kingsford Smith

Aug 30

SYD8:55 pmSydney Kingsford Smith

43h 31m

2 stops

SEA11:26 pmSeattle/Tacoma Intl

$968

ANA

Aug 24

SEA4:30 pmSeattle/Tacoma Intl

33h 40m

1 stop

SYD7:10 pmSydney Kingsford Smith

Aug 30

SYD8:55 pmSydney Kingsford Smith

34h 30m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

$1,025

ANA

Aug 18

SEA4:30 pmSeattle/Tacoma Intl

23h 55m

1 stop

SYD9:25 amSydney Kingsford Smith

Aug 31

SYD11:45 amSydney Kingsford Smith

28h 41m

2 stops

SEA11:26 pmSeattle/Tacoma Intl

$1,041

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 9/14

10:50 am-7:20 am

1 stop27h 30m

Sydney Kingsford Smith

Mon 9/21

9:20 am-10:05 am

1 stop17h 45m

$923

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 9/14

10:50 am-7:20 am

1 stop27h 30m

Sydney Kingsford Smith

Tue 9/22

9:20 am-2:17 pm

1 stop21h 57m

$933

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 10/25

11:06 am-12:35 pm

2 stops31h 29m

Sydney Kingsford Smith

Wed 11/4

2:00 pm-6:26 pm

2 stops23h 26m

$939

Quickest round-trip

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 10/25

7:57 pm-8:35 am

1 stop18h 38m

Sydney Kingsford Smith

Wed 11/25

11:20 am-9:27 am

1 stop17h 07m

$949

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 8/24

4:30 pm-9:25 am

1 stop23h 55m

Sydney Kingsford Smith

Sun 8/30

8:55 pm-11:26 pm

2 stops43h 31m

$968

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 8/30

3:00 pm-7:20 am

1 stop23h 20m

Sydney Kingsford Smith

Mon 9/14

9:20 am-6:32 pm

1 stop26h 12m

$999

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 8/30

3:00 pm-7:20 am

1 stop23h 20m

Sydney Kingsford Smith

Sun 9/13

9:20 am-6:32 pm

1 stop26h 12m

$999

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 8/24

4:30 pm-7:10 pm

1 stop33h 40m

Sydney Kingsford Smith

Sun 8/30

8:55 pm-2:25 pm

1 stop34h 30m

$1,025

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Sun 8/30

9:05 am-6:55 am

1 stop28h 50m

Sydney Kingsford Smith

Wed 9/9

9:30 am-11:24 am

1 stop18h 54m

$1,040

SeattleSydney

SEA Seattle/Tacoma Intl - SYD Sydney Kingsford Smith

SEASYD

Seattle/Tacoma Intl

Mon 8/31

9:05 am-6:55 am

1 stop28h 50m

Sydney Kingsford Smith

Wed 9/9

10:20 am-2:24 pm

1 stop21h 04m

$1,040

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 February is, on average, the cheapest month to fly to Australia from State of Washington, with most prices found around $971. If you aren’t able to travel during the month of February, then book flights to Australia from State of Washington during August instead. Flights to Australia in August, while not as cheap as those in February, still average around $1,066.

How far in advance should I book a flight from Washington 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 $1,108 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 $927 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 50m
Direct flights	None

The fastest flight from State of Washington to Australia takes 17h 50m

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

Frequently asked questions about flying 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 August 2026, there are 12 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 7.9 12,797 reviews	Search Alaska Airlines flights
Air Canada	PriceFrom $385	Free Cancellation	Rating 7.1 11,464 reviews	Search Air Canada flights
Delta	PriceFrom $570	Free Cancellation	Rating 7.8 8,506 reviews	Search Delta flights
ANA	PriceFrom $583	Free Cancellation	Rating 8.3 1,294 reviews	Search ANA flights
United Airlines	PriceFrom $598	Free Cancellation	Rating 7.4 10,111 reviews	Search United Airlines flights
Qantas Airways	PriceFrom $803	Free Cancellation	Rating 7.5 1,081 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $804	Free Cancellation	Rating 7.1 11,910 reviews	Search American Airlines flights
Hawaiian Airlines	PriceFrom $812	Free Cancellation	Rating 7.8 2,817 reviews	Search Hawaiian Airlines flights
Air New Zealand	PriceFrom $947	Free Cancellation	Rating 8.0 660 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,153	Free Cancellation	Rating 7.6 1,449 reviews	Search Cathay Pacific 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.