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$546+ Cheap flights from Australia to Washington

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Jul 23 — Jul 301
Thu 7/23
Thu 7/30
1 adult, Economy
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Cheap flight deals from Australia to Washington

Cheapest flights from Australia to Washington
Explore the most affordable flight options available from Australia to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.

This Trip.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/231:15 pm
SYD
-
SEA
3 stops37h 02m
Multiple Airlines
Wed 8/510:34 am
SEA
-
SYD
2 stops42h 36m
Multiple Airlines
Deal found 6/22$853
This CheapTickets.ch deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:00 pm
SYD
-
SEA
2 stops22h 48m
Multiple Airlines
Sun 11/19:50 am
SEA
-
SYD
2 stops41h 15m
Multiple Airlines
Deal found 6/19$861
This Trip.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:15 pm
SYD
-
SEA
2 stops25h 24m
Multiple Airlines
Wed 10/216:28 am
SEA
-
SYD
2 stops36h 22m
Multiple Airlines
Deal found 6/22$874
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:15 pm
SYD
-
PDX
2 stops27h 44m
Multiple Airlines
Sun 8/301:53 pm
PDX
-
SYD
2 stops28h 57m
Multiple Airlines
Deal found 6/19$891
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:15 am
SYD
-
SEA
2 stops33h 44m
Multiple Airlines
Fri 9/255:59 pm
SEA
-
SYD
2 stops24h 51m
Multiple Airlines
Deal found 6/19$898
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/219:30 am
MEL
-
SEA
1 stop22h 09m
United Airlines
Sat 7/410:29 am
SEA
-
MEL
1 stop28h 46m
United Airlines
Deal found 6/19$905
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1010:55 am
MEL
-
SEA
1 stop22h 25m
United Airlines
Sun 7/267:00 am
SEA
-
MEL
1 stop32h 15m
United Airlines
Deal found 6/19$912
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:55 am
MEL
-
SEA
1 stop31h 20m
United Airlines
Mon 8/106:57 pm
SEA
-
MEL
1 stop20h 18m
United Airlines
Deal found 6/20$914
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:55 am
MEL
-
SEA
2 stops38h 05m
United Airlines
Fri 7/37:05 pm
SEA
-
MEL
1 stop20h 10m
United Airlines
Deal found 6/19$916
This Flighttix deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:10 am
SYD
-
SEA
1 stop29h 35m
British Airways
Wed 8/122:07 pm
SEA
-
SYD
1 stop23h 48m
British Airways
Deal found 6/19$921
This BYOjet deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:45 pm
SYD
-
SEA
1 stop26h 14m
Multiple Airlines
Wed 7/298:00 am
SEA
-
SYD
1 stop17h 50m
Multiple Airlines
Deal found 6/19$924
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/310:55 am
MEL
-
SEA
1 stop22h 25m
United Airlines
Sat 9/53:30 pm
SEA
-
MEL
1 stop23h 45m
United Airlines
Deal found 6/22$925

Find flight deals from Australia to Washington

Keep the following information in mind while searching for Australia to Washington flight deals. Data was last updated June 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$853
(Trip.com)

One-way from

$546
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$1,086
Provider with most accurate pricing for Sydney Kingsford Smith-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Seattle/Tacoma Intl flights.
Search Deals
From Australia to Washington
Search Deals
One-way flight from Australia to Washington
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Australia to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 23, 2026.
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

Cheapest round-trip

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 8/11

10:55 am-8:43 pm

1 stop26h 48m

Seattle/Tacoma Intl

Sun 8/23

10:55 am-8:15 am

1 stop28h 20m

$915

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sun 7/26

10:55 am-12:34 pm

1 stop18h 39m

Seattle/Tacoma Intl

Sun 8/30

11:00 pm-8:15 am

2 stops40h 15m

$919

MelbourneSpokane

MEL - GEG

MELGEG

Melbourne

Tue 8/25

10:55 am-6:51 pm

1 stop24h 56m

Spokane

Sat 9/5

5:00 am-8:15 am

2 stops34h 15m

$949

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Mon 7/13

10:55 am-11:13 pm

2 stops29h 18m

Portland

Mon 7/27

1:02 pm-7:30 am

2 stops25h 28m

$951

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 7/20

9:30 am-5:59 pm

2 stops25h 29m

Seattle/Tacoma Intl

Wed 8/5

5:04 pm-7:00 am

1 stop20h 56m

$956

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 7/14

9:30 am-7:12 pm

2 stops26h 42m

Seattle/Tacoma Intl

Wed 7/29

1:30 pm-6:55 am

1 stop24h 25m

$959

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Thu 11/12

9:40 pm-6:05 am

1 stop27h 25m

Portland

Mon 11/16

7:00 am-7:45 pm

1 stop17h 45m

$961

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Tue 7/21

10:55 am-10:49 pm

1 stop28h 54m

Portland

Tue 7/28

11:16 am-8:15 am

1 stop27h 59m

$962

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 8/3

9:15 am-11:44 pm

1 stop31h 29m

Seattle/Tacoma Intl

Mon 8/10

5:45 am-6:50 am

2 stops32h 05m

$963

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Mon 7/20

9:15 am-4:28 pm

2 stops24h 13m

Seattle/Tacoma Intl

Tue 8/4

12:36 pm-6:50 am

1 stop25h 14m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Australia to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Australia with our price prediction graph.
Estimated round-trip 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 Washington

What is the cheapest month to book a flight from Australia to State of Washington?

Currently, December is the cheapest month in which you can book a flight from Australia to State of Washington (average of $427). Flying from Australia to State of Washington in October is currently the most expensive (average of $780). 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 State of Washington?

The best time to book flights from Australia to State of Washington is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated June 23, 2026.
See what other customers who have flown with United Airlines and Air Canada from Australia to Washington have to say. 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
9,875 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,875 reviews
United Airlines
7.4
Good
9,875 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Air Canada
7.1
Good
11,244 reviews
United Airlines
7.4
Good
9,875 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Australia to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $915, United Airlines can have you in State of Washington from Australia in 26h 48m. Airlines will cover a distance of 8180 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Australia to State of Washington one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $379. Air Canada flights start at $415 while deals on Hawaiian Airlines start at $437 one-way.

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

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

  • How can I find direct flights from Australia to Washington?

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

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

    Yes. Cheapflights offers flight deals from Australia to Washington 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 State of Washington?

    Currently, December is the cheapest month in which you can book a flight from Australia to State of Washington (average of $427). Flying from Australia to State of Washington in October is currently the most expensive (average of $780). 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

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Top 2 airlines flying from Australia to Washington

Discover the top 2 airlines that operate flights from Australia to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$752Average$1,023FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$778Average$1,210FlexibilityNo cancel feeOn-time69%

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