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Cheap flights from Washington to Melbourne from $646

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 23/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
9 nov. — 16 nov.1
1 adult
1 adult, Economy

Cheap flight deals from Washington to Melbourne

Keep the following information in mind while searching for Washington to Melbourne flight deals. Data was last updated 10 octobre 2025.

Round-trip from

$1,381

One-way from

$646

Popular in

December

Cheapest in

February

Average price

$1,918
Philippine Airlines
  • Philippine Airlines
  • 29/10-9/11
  • 2 total stops
  • 63h 00m total
  • Washington to Melbourne
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23/11
  • 23/11
  • 2 total stops
  • 31h 05m total
  • Washington to Melbourne
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($505 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($144 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Washington to Melbourne

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Melbourne
Explore the most affordable flight options available from Washington to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 octobre 2025.

mer. 29/1022:30SEA - MEL
1 stop35h 40mPhilippine Airlines
dim. 9/1110:20MEL - SEA
1 stop27h 20mPhilippine Airlines
Deal found 10/10$1,381
dim. 26/1022:30SEA - MEL
1 stop40h 05mPhilippine Airlines
dim. 9/1110:20MEL - SEA
1 stop27h 20mPhilippine Airlines
Deal found 9/10$1,405
jeu. 6/1114:50PDX - MEL
1 stop23h 40mQantas Airways
jeu. 13/1112:00MEL - PDX
1 stop24h 12mQantas Airways
Deal found 9/10$1,428
jeu. 20/1117:42PDX - MEL
1 stop20h 48mAmerican Airlines
sam. 29/1112:00MEL - PDX
1 stop24h 12mAmerican Airlines
Deal found 10/10$1,456
jeu. 6/1111:40PDX - MEL
2 stops26h 50mAmerican Airlines
jeu. 13/1112:00MEL - PDX
1 stop24h 12mAmerican Airlines
Deal found 9/10$1,464
sam. 15/1106:00PDX - MEL
1 stop32h 30mAmerican Airlines
sam. 29/1112:00MEL - PDX
1 stop24h 12mAmerican Airlines
Deal found 9/10$1,468
ven. 7/1121:30PDX - MEL
1 stop41h 00mMultiple Airlines
ven. 14/1112:00MEL - PDX
1 stop23h 50mMultiple Airlines
Deal found 10/10$1,473
jeu. 6/1119:10PDX - MEL
2 stops43h 20mUnited Airlines
jeu. 13/1113:00MEL - PDX
2 stops28h 56mUnited Airlines
Deal found 9/10$1,500
mar. 30/1219:45PDX - MEL
1 stop19h 15mUnited Airlines
mer. 14/113:00MEL - PDX
1 stop18h 33mUnited Airlines
Deal found 10/10$1,554
mer. 3/1218:50SEA - MEL
2 stops22h 50mAmerican Airlines
lun. 22/1212:00MEL - SEA
1 stop25h 43mAmerican Airlines
Deal found 9/10$1,571
mer. 29/1022:30SEA - MEL
1 stop35h 40mMultiple Airlines
lun. 23/306:40MEL - SEA
2 stops20h 51mMultiple Airlines
Deal found 10/10$1,630
lun. 3/1119:57SEA - MEL
2 stops45h 48mMultiple Airlines
ven. 14/1114:15MEL - SEA
2 stops21h 41mMultiple Airlines
Deal found 10/10$1,638

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington to Melbourne 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 10 octobre 2025.
Use the filters below to find and compare flights from Washington to Melbourne that are best for you.

Fly from

Washington

Fly to

Melbourne

Route

Depart

Return

Price

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

jeu. 19/3

22:30-08:35

1 stop40h 05m

Melbourne

mer. 25/3

10:20-19:40

1 stop27h 20m

$1,457

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

sam. 21/2

20:00-13:35

2 stops22h 35m

Melbourne

sam. 7/3

08:10-09:31

2 stops20h 21m

$1,490

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

ven. 13/3

15:41-09:00

1 stop23h 19m

Melbourne

jeu. 26/3

10:30-00:19

2 stops31h 49m

$1,494

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

dim. 1/3

13:32-10:00

1 stop25h 28m

Melbourne

dim. 15/3

12:00-18:36

1 stop24h 36m

$1,555

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

mar. 30/12

15:54-10:00

1 stop23h 06m

Melbourne

mer. 14/1

13:00-12:33

1 stop18h 33m

$1,555

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

mar. 24/2

17:05-08:00

2 stops43h 55m

Melbourne

dim. 14/6

10:00-20:49

2 stops27h 49m

$1,572

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

sam. 28/2

19:00-15:15

2 stops25h 15m

Melbourne

mer. 4/3

07:10-18:30

2 stops30h 20m

$1,595

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

jeu. 29/1

17:10-10:00

1 stop21h 50m

Melbourne

mar. 24/3

12:00-20:46

1 stop26h 46m

$1,661

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

mar. 10/2

06:03-10:00

1 stop32h 57m

Melbourne

lun. 20/4

10:55-21:29

1 stop27h 34m

$1,661

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

jeu. 29/1

09:25-10:00

1 stop29h 35m

Melbourne

dim. 22/3

12:00-20:46

1 stop26h 46m

$1,661

Flights are sorted by cheapest return flights first.

Deals found on 10/10

Showing 1-10 of 54 results
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Best time to book a flight from Washington to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from Washington 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 Washington to Melbourne

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

Currently, May is the cheapest month in which you can book a flight from State of Washington to Melbourne (average of $1,239). Flying from State of Washington to Melbourne in April is currently the most expensive (average of $1,854). 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.

Related info for your journey

Find useful and relevant information for your journey from Washington to Melbourne. 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 State of Washington to Melbourne?

    For as low as $1,494, Philippine Airlines can have you in Melbourne from State of Washington in 23h 19m. There are 13053 km between State of Washington and Melbourne. This flight may include one or multiple stops.

  • What are the most popular routes from State of Washington to Melbourne?

    The most popular flight routes from State of Washington to Melbourne are Seattle/Tacoma Intl - Melbourne, Portland - Melbourne and Seattle/Tacoma Intl - Melbourne Avalon.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from State of Washington to Melbourne (average of $1,239). Flying from State of Washington to Melbourne in April is currently the most expensive (average of $1,854). 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

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Top airline flying from Washington to Melbourne

Discover the top airline that operate flights from Washington to Melbourne. 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 10 octobre 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,543Average$2,207FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Washington to Melbourne via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Washington to Melbourne.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington to Melbourne, users can toggle the no change fees filter when performing a flight search.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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