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Cheap flights from Australia to Washington from $640

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SEA
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Australia to Washington

Enter your travel dates to find the best prices.

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 18 March 2026.

Sat 16/510:55
MEL
-
SEA
1 stop20h 41m
United Airlines
Thu 28/505:00
SEA
-
MEL
1 stop34h 15m
United Airlines
Deal found 15/3$1,066
Sat 25/410:55
MEL
-
SEA
1 stop20h 51m
United Airlines
Sat 16/523:53
SEA
-
MEL
2 stops39h 22m
United Airlines
Deal found 14/3$1,073
Fri 15/510:00
MEL
-
SEA
1 stop19h 23m
Delta
Sun 7/617:45
SEA
-
MEL
2 stops45h 05m
Delta
Deal found 15/3$1,076
Tue 12/510:55
MEL
-
SEA
1 stop20h 41m
United Airlines
Sat 30/510:29
SEA
-
MEL
1 stop28h 46m
United Airlines
Deal found 15/3$1,099
Fri 29/509:30
MEL
-
SEA
1 stop22h 06m
United Airlines
Wed 24/614:36
SEA
-
MEL
2 stops23h 54m
United Airlines
Deal found 17/3$1,157
Tue 28/413:25
MEL
-
SEA
2 stops22h 15m
Multiple Airlines
Tue 5/514:48
SEA
-
MEL
2 stops28h 12m
Multiple Airlines
Deal found 14/3$1,190
Wed 29/406:00
MEL
-
PDX
2 stops25h 40m
Air Canada
Wed 6/519:45
PDX
-
MEL
2 stops22h 20m
Air Canada
Deal found 14/3$1,214
Thu 30/406:00
MEL
-
PDX
2 stops20h 10m
Multiple Airlines
Thu 7/519:45
PDX
-
MEL
2 stops22h 50m
Multiple Airlines
Deal found 16/3$1,233
Thu 4/606:00
MEL
-
SEA
2 stops20h 50m
Multiple Airlines
Fri 3/719:20
SEA
-
MEL
2 stops23h 15m
Multiple Airlines
Deal found 15/3$1,237
Sun 14/610:55
MEL
-
PDX
1 stop18h 19m
United Airlines
Mon 29/605:48
PDX
-
MEL
1 stop33h 27m
United Airlines
Deal found 16/3$1,244
Wed 17/606:00
MEL
-
PDX
2 stops20h 30m
Air Canada
Tue 30/619:45
PDX
-
MEL
2 stops22h 50m
Air Canada
Deal found 17/3$1,245
Mon 27/406:00
MEL
-
PDX
2 stops20h 10m
Air Canada
Mon 4/510:10
PDX
-
MEL
2 stops31h 55m
Air Canada
Deal found 17/3$1,247

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 18 March 2026.

Round-trip from

$1,066

One-way from

$640

Popular in

July

Cheapest in

August

Average price

$1,441
United Airlines
  • United Airlines
  • 16/5-28/5
  • 2 total stops
  • 54h 56m total
  • Australia to Washington
Search Deals
Air Canada
  • Air Canada
  • 7/5
  • 2 total stops
  • 25h 20m total
  • Australia to Washington
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($65 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 18 March 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 return flight

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 16/5

10:55-14:36

1 stop20h 41m

Seattle/Tacoma Intl

Fri 29/5

08:56-07:30

2 stops29h 34m

$1,066

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Sat 16/5

10:55-14:36

1 stop20h 41m

Seattle/Tacoma Intl

Thu 28/5

05:00-08:15

1 stop34h 15m

$1,066

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 28/4

10:55-22:42

2 stops28h 47m

Seattle/Tacoma Intl

Tue 5/5

10:52-08:15

2 stops28h 23m

$1,073

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

10:55-16:20

1 stop22h 25m

Seattle/Tacoma Intl

Wed 24/6

08:58-08:15

2 stops30h 17m

$1,073

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 15/5

10:00-20:30

1 stop27h 30m

Seattle/Tacoma Intl

Sun 7/6

21:25-07:50

1 stop41h 25m

$1,076

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Tue 12/5

10:55-21:06

2 stops27h 11m

Seattle/Tacoma Intl

Sat 30/5

11:02-08:15

2 stops28h 13m

$1,175

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Sun 14/6

10:55-12:14

1 stop18h 19m

Portland

Wed 1/7

18:03-08:15

1 stop21h 12m

$1,244

MelbournePortland

MEL - PDX

MELPDX

Melbourne

Wed 29/4

10:00-17:10

2 stops24h 10m

Portland

Wed 6/5

06:45-07:50

1 stop32h 05m

$1,254

MelbourneSeattle

MEL - SEA

MELSEA

Melbourne

Fri 29/5

10:00-20:30

1 stop27h 30m

Seattle/Tacoma Intl

Wed 24/6

14:30-07:50

1 stop24h 20m

$1,258

SydneyPortland

SYD - PDX

SYDPDX

Sydney Kingsford Smith

Mon 20/4

09:20-18:30

1 stop26h 10m

Portland

Mon 4/5

10:10-07:20

1 stop28h 10m

$1,261

Flights are sorted by cheapest return flights first.

Deals found on 14/3

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 return 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, January is the cheapest month in which you can book a flight from Australia to State of Washington (average of $808). Flying from Australia to State of Washington in July is currently the most expensive (average of $1,131). 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 18 March 2026.
Check out reviews from past customers who have flown with Singapore Airlines,Virgin Australia, andQantas Airways from Australia to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Singapore Airlines
8.2
Very Good
1,480 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Virgin Australia
7.6
Good
449 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Qantas Airways
7.5
Good
1,006 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
United Airlines
7.4
Good
9,436 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Air Canada
7.1
Good
10,815 reviews
Singapore Airlines
8.2
Very Good
1,480 reviews
Check prices

Boarding

8.3

Comfort

8.0

Entertainment

8.1

Food

7.8

Crew

8.6

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.

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?

    Departing from Australia to State of Washington will take you 20h 41m. The distance from Australia to State of Washington is about 13164 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The cheapet airlines for a one-way flight from Australia to State of Washington are MIAT Mongolian ($486), Air China ($510), and Cathay Pacific ($521).

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Australia to State of Washington (average of $808). Flying from Australia to State of Washington in July is currently the most expensive (average of $1,131). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Australia to Washington

Discover the top 10 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 647,157 searches. Data last updated 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$684Average$1,960FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$942Average$1,382FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest$946Average$1,446FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$954Average$1,275FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$963Average$1,515FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,060Average$1,703FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qantas AirwaysCheapest$1,062Average$1,625FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Alaska AirlinesCheapest$1,104Average$1,716FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Hawaiian AirlinesCheapest$1,144Average$1,829FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
EVA AirCheapest$1,256Average$1,460FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Australia to Washington?

Cheapflights makes it easy to find Australia to Washington flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Australia to Washington?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington from Australia.

Can Cheapflights find flights from Australia to Washington with no change fees?

Certainly. Search results for flights to Washington from Australia shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Australia to Washington become cheaper?

Of course! You can now track prices for flights from Australia to Washington and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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