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Cheap flights from Washington to Melbourne from $683

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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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 27 November 2025.

Round-trip from

$1,370

One-way from

$683

Popular in

December

Cheapest in

February

Average price

$2,488
18/1-24/1
  • 18/1-24/1
  • 2 total stops
  • 51h 27m total
  • Washington to Melbourne
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 15/3
  • 1 total stop
  • 40h 05m total
  • Washington to Melbourne
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($480 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($79 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 27 November 2025.

Wed 26/1117:42PDX - MEL
1 stop20h 48mAmerican Airlines
Wed 3/1216:05MEL - PDX
1 stop24h 19mAmerican Airlines
Deal found 25/11$1,461
Fri 26/1216:26PDX - MEL
1 stop22h 04mQantas Airways
Tue 13/115:45MEL - PDX
2 stops24h 03mQantas Airways
Deal found 25/11$1,491
Fri 26/1216:26PDX - MEL
1 stop22h 04mQantas Airways
Wed 14/112:00MEL - PDX
1 stop20h 35mQantas Airways
Deal found 25/11$1,507
Fri 26/1216:26PDX - MEL
1 stop22h 04mQantas Airways
Thu 15/112:00MEL - PDX
1 stop20h 41mQantas Airways
Deal found 25/11$1,541
Sat 13/1210:10PDX - MEL
1 stop28h 50mUnited Airlines
Sat 20/1213:00MEL - PDX
1 stop28h 46mUnited Airlines
Deal found 25/11$1,568
Fri 26/1216:26PDX - MEL
1 stop22h 04mQantas Airways
Mon 12/121:00MEL - PDX
2 stops42h 48mQantas Airways
Deal found 25/11$1,611
Thu 27/1121:30SEA - MEL
1 stop40h 05mMultiple Airlines
Wed 3/1213:00MEL - SEA
1 stop21h 29mMultiple Airlines
Deal found 26/11$1,711
Mon 29/1207:05SEA - MEL
1 stop31h 55mUnited Airlines
Tue 3/313:00MEL - SEA
1 stop21h 41mUnited Airlines
Deal found 26/11$1,713
Thu 25/1216:26PDX - MEL
2 stops22h 59mQantas Airways
Tue 13/112:00MEL - PDX
1 stop20h 41mQantas Airways
Deal found 25/11$1,717
Thu 25/1216:26PDX - MEL
2 stops23h 59mQantas Airways
Thu 15/112:00MEL - PDX
1 stop20h 41mQantas Airways
Deal found 25/11$1,751
Sun 30/1120:00SEA - MEL
2 stops28h 20mMultiple Airlines
Sun 7/1212:00MEL - SEA
1 stop24h 28mMultiple Airlines
Deal found 25/11$1,773
Thu 25/1206:20PDX - MEL
1 stop32h 10mQantas Airways
Wed 14/112:00MEL - PDX
1 stop20h 35mQantas Airways
Deal found 25/11$1,783

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 27 November 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

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 13/1

06:00-05:00

1 stop28h 00m

Melbourne

Thu 22/1

16:05-18:51

1 stop21h 46m

$1,461

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 15/1

18:22-09:30

1 stop20h 08m

Melbourne

Tue 20/1

12:00-14:48

1 stop21h 48m

$1,461

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 24/2

11:48-09:30

2 stops26h 42m

Melbourne

Sat 7/3

16:05-21:17

1 stop24h 12m

$1,467

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 24/2

19:11-08:00

2 stops41h 49m

Melbourne

Sun 14/6

10:00-23:53

2 stops30h 53m

$1,514

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 28/2

13:18-09:30

2 stops25h 12m

Melbourne

Mon 9/3

12:00-17:51

2 stops23h 51m

$1,565

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 13/12

10:10-10:00

1 stop28h 50m

Melbourne

Sat 20/12

13:00-22:46

1 stop28h 46m

$1,568

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 26/12

16:26-09:30

1 stop22h 04m

Melbourne

Mon 12/1

21:00-20:48

2 stops42h 48m

$1,611

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 17/1

14:57-10:25

2 stops24h 28m

Melbourne

Sat 24/1

12:00-13:41

1 stop20h 41m

$1,651

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 13/1

14:30-09:35

2 stops24h 05m

Melbourne

Thu 22/1

07:00-20:34

2 stops32h 34m

$1,727

SeattleMelbourne

SEA - AVV

SEAAVV

Seattle/Tacoma Intl

Mon 13/4

10:10-20:05

2 stops40h 55m

Melbourne Avalon

Sat 25/4

08:50-22:08

2 stops54h 18m

$1,742

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 60 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 $1,244). Flying from State of Washington to Melbourne in April is currently the most expensive (average of $1,862). 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 $1,840, American Airlines can have you in Melbourne from State of Washington in 19h 48m. There are 13164 km between State of Washington and Melbourne. This flight may include one or multiple stops.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $798. Users have also found prices from $815 and $993 on United Airlines and Qantas Airways, respectively.

  • 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 $1,244). Flying from State of Washington to Melbourne in April is currently the most expensive (average of $1,862). 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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Alternative routes for Washington to Melbourne

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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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,665Average$2,113FlexibilityNo cancel feeOn-time69%
Search United Airlines 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 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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