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

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

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

If you’re flying from a popular airport in Australia, such as Brisbane or Sydney, and flying into State of Washington, then you can expect flight times to average 18h 21m and 18h 43m, respectively.

What airlines fly to State of Washington?

United Airlines, Air Canada and Delta are the top three most popular airlines that fly to State of Washington from Australia according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 4 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Australia to Washington were last updated today.

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

There are 4 operators available for flights from Australia to Washington as of November 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Washington.

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

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$424 Cheap Flights from Australia to Washington in 2025/26

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Recent round-trip flight deals from Australia to Washington

Enter your travel dates to find the best prices.

11:20 am - 10:06 pmSYD-SEA

29h 46m1 stop

10:05 am - 6:55 amSEA-SYD

25h 50m1 stop

$769Air Canada

Find Deal

Tue, Dec 2 - Tue, Dec 9

12:00 pm - 5:49 pmMEL-SEA

24h 49m1 stop

7:51 am - 5:00 amSEA-MEL

27h 09m1 stop

$783American Airlines

Find Deal

Sun, Mar 8 - Sat, Mar 28

12:10 pm - 2:24 pmBNE-SEA

20h 14m1 stop

6:00 am - 5:45 amSEA-BNE

29h 45m1 stop

$789Qantas Airways

Find Deal

Tue, Dec 9 - Tue, Dec 30

7:40 pm - 9:01 pmBNE-SEA

18h 21m1 stop

6:10 am - 5:00 amSEA-BNE

29h 50m1 stop

$790Qantas Airways

Find Deal

Wed, Mar 11 - Sun, Mar 15

11:30 am - 4:29 pmMEL-SEA

23h 59m1 stop

12:25 pm - 10:00 amSEA-MEL

26h 35m2 stops

$793United Airlines

Find Deal

Sat, Jan 17 - Sat, Jan 31

1:00 pm - 8:23 amMEL-SEA

38h 23m1 stop

5:02 am - 9:30 amSEA-MEL

33h 28m2 stops

$794United Airlines

Find Deal

Thu, Dec 18 - Wed, Dec 31

11:05 am - 11:25 pmBNE-SEA

30h 20m2 stops

5:59 pm - 8:20 amSEA-BNE

20h 21m1 stop

$821Delta

Find Deal

Wed, Dec 10 - Wed, Dec 24

10:40 am - 5:00 pmBNE-SEA

24h 20m1 stop

9:45 pm - 8:20 amSEA-BNE

40h 35m1 stop

$829Delta

Find Deal

Sun, Nov 16 - Thu, Nov 20

9:40 pm - 10:40 pmSYD-SEA

20h 00m1 stop

7:20 am - 7:45 pmSEA-SYD

17h 25m1 stop

$991Hawaiian Airlines

Find Deal

Thu, Feb 19 - Sat, Feb 28

9:40 pm - 9:43 pmSYD-PDX

19h 03m1 stop

4:30 pm - 7:45 pmPDX-SYD

56h 15m2 stops

$1,116Hawaiian Airlines

Find Deal

Fri, Nov 21 - Mon, Nov 24

Air Canada flights from Australia to State of Washington

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

Air Canada

Dec 2

SYD11:20 amSydney Kingsford Smith

29h 46m

1 stop

SEA10:06 pmSeattle/Tacoma Intl

Dec 9

SEA10:05 amSeattle/Tacoma Intl

25h 50m

1 stop

SYD6:55 amSydney Kingsford Smith

$769

Find similar

Air Canada

Apr 30

SYD7:00 amSydney Kingsford Smith

19h 33m

2 stops

SEA9:33 amSeattle/Tacoma Intl

May 7

SEA5:40 amSeattle/Tacoma Intl

32h 40m

1 stop

SYD7:20 amSydney Kingsford Smith

$784

Find similar

Air Canada

Nov 9

SYD11:20 amSydney Kingsford Smith

16h 55m

1 stop

PDX9:15 amPortland

Nov 24

PDX3:15 pmPortland

23h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

$786

Find similar

Qatar Airways flights from Australia to State of Washington

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

Qatar Airways

Nov 20

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 24

SEA4:05 pmSeattle/Tacoma Intl

34h 40m

1 stop

PER6:45 pmPerth

$1,622

Find similar

Qatar Airways

Nov 13

PER3:55 pmPerth

35h 45m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Nov 26

SEA4:05 pmSeattle/Tacoma Intl

27h 50m

1 stop

PER11:55 amPerth

$1,652

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 12/2

11:20 am-10:06 pm

1 stop29h 46m

Seattle/Tacoma Intl

Tue 12/9

10:05 am-6:55 am

1 stop25h 50m

$769

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 3/8

12:00 pm-5:49 pm

1 stop24h 49m

Seattle/Tacoma Intl

Sat 3/28

7:51 am-5:00 am

1 stop27h 09m

$783

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Tue 12/9

12:10 pm-2:24 pm

1 stop20h 14m

Seattle/Tacoma Intl

Tue 12/30

6:00 am-5:45 am

1 stop29h 45m

$789

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Wed 3/11

7:40 pm-9:01 pm

1 stop18h 21m

Seattle/Tacoma Intl

Sun 3/15

6:10 am-5:00 am

1 stop29h 50m

$790

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 1/17

11:30 am-4:29 pm

1 stop23h 59m

Seattle/Tacoma Intl

Sat 1/31

12:25 pm-10:00 am

2 stops26h 35m

$793

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 12/18

1:00 pm-8:23 am

1 stop38h 23m

Seattle/Tacoma Intl

Wed 12/31

5:02 am-9:30 am

2 stops33h 28m

$794

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Wed 12/10

11:05 am-11:25 pm

2 stops30h 20m

Seattle/Tacoma Intl

Wed 12/24

5:59 pm-8:20 am

1 stop20h 21m

$821

BrisbaneSeattle

BNE - SEA

BNESEA

Brisbane

Sun 11/16

10:40 am-5:00 pm

1 stop24h 20m

Seattle/Tacoma Intl

Thu 11/20

9:45 pm-8:20 am

1 stop40h 35m

$829

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 2/19

9:40 pm-10:40 pm

1 stop20h 00m

Seattle/Tacoma Intl

Sat 2/28

7:20 am-7:45 pm

1 stop17h 25m

$991

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Fri 11/21

9:40 pm-9:43 pm

1 stop19h 03m

Portland

Mon 11/24

4:30 pm-7:45 pm

2 stops56h 15m

$1,116

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 Australia to State of Washington

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

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Other information

What is the cheapest month to fly to State of Washington?

The month of August is, on average, the cheapest month to fly to State of Washington from Australia, with most prices found around $912. If you aren’t able to travel to State of Washington during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $975.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Australia to State of Washington is on a Saturday. Travelers who choose to depart for State of Washington on a Saturday will often find tickets for as low as $1,069. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Australia to State of Washington for around $1,337.

What is the cheapest time of day to depart on your flight to State of Washington?

The cheapest time of day to fly to State of Washington is in the morning when flights can be purchased for as low as $1,213. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,679 on average. Flights to State of Washington from Australia in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $1,092 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Australia for as low as $894 on momondo.

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

You could potentially save up to 12% on your flight if you consider stops on a Australia to State of Washington flight.

Cheap Australia to State of Washington flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Australia to Washington?
Prices for flights from Australia to Washington were last updated today.
How many operators does momondo search for flights from Australia to Washington?
There are 4 operators available for flights from Australia to Washington as of November 2025.
How old do you have to be to fly from Australia to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Australia to State of Washington

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $598	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada flights
United Airlines	PriceFrom $794	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Delta	PriceFrom $802	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $917	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Australia to Washington. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Washington from Australia with this policy.

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

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 Washington from Australia.

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

If you are not ready to book a flight from Australia to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.

An easier way to manage your State of Washington 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.

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Popular cities in Washington

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Cheap flights from Australia to Washington from $424

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to Washington departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Australia to Washington

Recent round-trip flight deals from Australia to Washington

Recent one-way flight deals from Australia to Washington

Recent last minute flight deals from Australia to Washington

Air Canada flights from Australia to State of Washington

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

Qatar Airways flights from Australia to State of Washington

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

momondo Fare Finder

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

See travel insights to Washington from

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

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

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight to State of Washington?

How far in advance should I book a flight to State of Washington?

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

You could potentially save up to 12% on your flight if you consider stops on a Australia to State of Washington flight.

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

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

What airlines fly to State of Washington?

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

If you’re flying from a popular airport in Australia, such as Brisbane or Sydney, and flying into State of Washington, then you can expect flight times to average 18h 21m and 18h 43m, respectively.

Cheap Australia to State of Washington flight deals and tips

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

Direct flights

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

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

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

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

Best airlines flying from Australia to State of Washington

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

Why use momondo?

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

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

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

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

An easier way to manage your State of Washington 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 Washington

Popular cities in Washington

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