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$526+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
Jun 7 — Jun 141
Sun 6/7
Sun 6/14
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 May 8, 2026.

This United Airlines deal was found by Cheapflights users on 5/6. 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 6/310:55 am
MEL
-
SEA
1 stop26h 58m
United Airlines
Wed 6/105:20 pm
SEA
-
MEL
1 stop21h 55m
United Airlines
Deal found 5/6$933
This United Airlines deal was found by Cheapflights users on 5/6. 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 5/3110:55 am
MEL
-
SEA
1 stop39h 27m
United Airlines
Sun 6/76:48 pm
SEA
-
MEL
1 stop20h 27m
United Airlines
Deal found 5/6$934
This United Airlines deal was found by Cheapflights users on 5/5. 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 5/299:30 am
MEL
-
SEA
1 stop22h 06m
United Airlines
Wed 6/2412:50 pm
SEA
-
MEL
2 stops25h 40m
United Airlines
Deal found 5/5$935
This United Airlines deal was found by Cheapflights users on 5/4. 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.
Thu 5/710:55 am
MEL
-
SEA
1 stop18h 30m
United Airlines
Thu 5/1411:39 am
SEA
-
MEL
1 stop27h 36m
United Airlines
Deal found 5/4$941
This Delta deal was found by Cheapflights users on 5/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:00 am
MEL
-
SEA
1 stop23h 51m
Delta
Fri 6/122:55 pm
SEA
-
MEL
1 stop23h 55m
Delta
Deal found 5/4$943
This SmartFares deal was found by Cheapflights users on 5/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:10 am
SYD
-
SEA
1 stop19h 51m
Multiple Airlines
Tue 6/1612:38 pm
SEA
-
SYD
1 stop25h 27m
Multiple Airlines
Deal found 5/8$956
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/19:10 am
SYD
-
SEA
2 stops25h 34m
American Airlines
Mon 6/227:01 am
SEA
-
SYD
1 stop31h 04m
American Airlines
Deal found 5/5$959
This American Airlines deal was found by Cheapflights users on 5/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:10 am
SYD
-
SEA
1 stop30h 48m
American Airlines
Mon 5/256:50 am
SEA
-
SYD
1 stop31h 15m
American Airlines
Deal found 5/5$961
This American Airlines deal was found by Cheapflights users on 5/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:10 am
SYD
-
SEA
1 stop21h 38m
American Airlines
Sun 8/911:11 pm
SEA
-
SYD
2 stops38h 54m
American Airlines
Deal found 5/3$964
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:10 am
SYD
-
SEA
1 stop20h 46m
Multiple Airlines
Tue 6/911:38 am
SEA
-
SYD
1 stop26h 27m
Multiple Airlines
Deal found 5/7$967
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:10 am
SYD
-
SEA
1 stop25h 57m
American Airlines
Sun 5/242:40 pm
SEA
-
SYD
1 stop23h 25m
American Airlines
Deal found 5/7$968
This United Airlines deal was found by Cheapflights users on 5/3. 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 5/410:55 am
MEL
-
PDX
1 stop24h 51m
United Airlines
Mon 5/111:37 pm
PDX
-
MEL
1 stop25h 38m
United Airlines
Deal found 5/3$969

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 May 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$933
(United Airlines)

One-way from

$526
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$1,064
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. 5% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 8, 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

Sun 5/31

10:55 am-8:00 am

2 stops38h 05m

Seattle/Tacoma Intl

Sun 6/7

6:48 pm-8:15 am

1 stop20h 27m

$938

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sat 8/8

10:55 am-8:54 pm

1 stop26h 59m

Portland

Fri 8/28

10:35 am-8:15 am

2 stops28h 40m

$971

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Tue 5/19

9:15 am-4:44 pm

2 stops24h 29m

Seattle/Tacoma Intl

Mon 6/1

5:35 pm-6:50 am

1 stop20h 15m

$995

SydneySeattle

SYD - SEA

SYDSEA

Sydney Kingsford Smith

Thu 6/11

10:20 am-2:30 pm

1 stop21h 10m

Seattle/Tacoma Intl

Sat 7/11

8:56 am-6:55 am

2 stops28h 59m

$1,036

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Mon 6/8

4:35 pm-10:27 pm

2 stops22h 52m

Portland

Mon 6/15

3:27 pm-10:20 am

2 stops25h 53m

$1,138
Quickest round-trip

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 5/23

9:20 am-9:30 am

1 stop17h 10m

Portland

Wed 5/27

3:30 pm-7:20 am

1 stop22h 50m

$1,156

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 5/29

6:00 am-4:20 pm

2 stops27h 20m

Seattle/Tacoma Intl

Wed 6/24

12:50 pm-7:30 am

2 stops25h 40m

$1,171

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Thu 9/3

10:55 am-4:15 pm

1 stop22h 20m

Seattle/Tacoma Intl

Sun 9/20

5:00 am-8:15 am

2 stops34h 15m

$1,196

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Sat 8/8

8:45 pm-6:11 am

1 stop26h 26m

Portland

Wed 8/12

7:46 am-6:50 pm

1 stop18h 04m

$1,201

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Mon 6/8

10:55 am-12:09 pm

1 stop18h 14m

Portland

Mon 6/15

6:03 pm-12:20 pm

2 stops25h 17m

$1,210

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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

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 41 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.

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 April is currently the most expensive (average of $755). 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.

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 May 8, 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
9,694 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,694 reviews
United Airlines
7.4
Good
9,694 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Air Canada
7.1
Good
11,002 reviews
United Airlines
7.4
Good
9,694 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 $1,156, United Airlines can have you in State of Washington from Australia in 17h 10m. Airlines will cover a distance of 7674 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 $421 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 April is currently the most expensive (average of $755). 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 May 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$431Average$1,062FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$754Average$1,016FlexibilityNo cancel feeOn-time69%

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