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Cheap flights from Washington to Melbourne from $678

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
20 May — 27 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 20 April 2026.

Sat 29/819:45
PDX
-
AVV
2 stops25h 35m
Multiple Airlines
Sat 3/1020:55
AVV
-
PDX
2 stops29h 36m
Multiple Airlines
Deal found 20/4$1,429
Thu 30/415:15
PDX
-
MEL
2 stops26h 50m
Multiple Airlines
Thu 14/506:00
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 19/4$1,442
Sun 1/1119:10
PDX
-
MEL
2 stops29h 10m
Multiple Airlines
Sun 8/1107:10
MEL
-
PDX
2 stops30h 20m
Multiple Airlines
Deal found 20/4$1,448
Fri 8/519:45
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Thu 21/506:50
MEL
-
PDX
2 stops19h 40m
Multiple Airlines
Deal found 17/4$1,449
Fri 30/1019:10
PDX
-
MEL
2 stops24h 05m
Multiple Airlines
Sun 8/1106:05
MEL
-
PDX
2 stops22h 20m
Multiple Airlines
Deal found 20/4$1,451
Wed 17/619:45
PDX
-
MEL
2 stops22h 50m
Air Canada
Fri 17/706:00
MEL
-
PDX
2 stops30h 11m
Air Canada
Deal found 16/4$1,458
Tue 2/619:45
PDX
-
MEL
2 stops22h 50m
Air Canada
Tue 9/606:00
MEL
-
PDX
2 stops20h 30m
Air Canada
Deal found 18/4$1,459
Sun 28/619:45
PDX
-
MEL
2 stops22h 35m
Air Canada
Tue 7/720:30
MEL
-
PDX
2 stops30h 01m
Air Canada
Deal found 17/4$1,468
Wed 21/1017:59
SEA
-
MEL
2 stops25h 01m
Fiji Airways
Wed 11/1113:45
MEL
-
SEA
2 stops22h 11m
Fiji Airways
Deal found 16/4$1,484
Sun 15/1119:10
PDX
-
AVV
2 stops23h 55m
Multiple Airlines
Sun 29/1106:00
AVV
-
PDX
2 stops22h 25m
Multiple Airlines
Deal found 19/4$1,502
Thu 30/415:59
PDX
-
MEL
1 stop23h 16m
United Airlines
Thu 14/510:55
MEL
-
PDX
2 stops28h 59m
United Airlines
Deal found 19/4$1,508
Thu 15/1017:55
SEA
-
MEL
2 stops25h 05m
Multiple Airlines
Fri 23/1014:30
MEL
-
SEA
2 stops22h 26m
Multiple Airlines
Deal found 19/4$1,512

Find flight deals from Washington to Melbourne

Keep the following information in mind while searching for Washington to Melbourne flight deals. Data was last updated 20 April 2026.

Round-trip from

$1,442

One-way from

$678

Popular in

December

Cheapest in

March

Average price

$1,839
Air Canada
  • Air Canada
  • 30/4-14/5
  • 4 total stops
  • 47h 20m total
  • Washington to Melbourne
Search Deals
30/8
  • 30/8
  • 3 total stops
  • 39h 36m total
  • Washington to Melbourne
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($393 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 20 April 2026.
Use the filters below to find and compare flights from Washington to Melbourne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 4/6

11:16-08:15

1 stop27h 59m

Melbourne

Wed 17/6

10:55-16:47

1 stop22h 52m

$1,512
Fastest return journey

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 1/6

17:20-08:15

1 stop21h 55m

Melbourne

Mon 8/6

10:55-16:20

1 stop22h 25m

$1,523

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 4/8

18:03-08:15

1 stop21h 12m

Melbourne

Tue 18/8

10:55-20:50

1 stop26h 55m

$1,523

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 5/6

17:04-07:30

1 stop21h 26m

Melbourne

Fri 12/6

09:30-21:10

2 stops28h 40m

$1,525

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 10/8

11:16-08:15

1 stop27h 59m

Melbourne

Mon 24/8

10:55-17:43

2 stops23h 48m

$1,530

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 17/6

10:53-07:50

1 stop27h 57m

Melbourne

Fri 17/7

10:00-16:34

1 stop23h 34m

$1,643

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 13/5

12:33-06:45

1 stop25h 12m

Melbourne

Sat 16/5

09:45-21:35

1 stop28h 50m

$1,705

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 13/5

19:45-08:15

1 stop19h 30m

Melbourne

Sat 16/5

10:55-20:58

1 stop27h 03m

$1,705

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/5

17:35-08:15

1 stop21h 40m

Melbourne

Thu 21/5

10:55-22:55

2 stops29h 00m

$1,709

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Wed 1/7

18:10-12:00

2 stops24h 50m

Melbourne

Sat 11/7

13:30-21:58

2 stops25h 28m

$1,758

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from State of Washington to Melbourne (average of $135). Flying from State of Washington to Melbourne in July is currently the most expensive (average of $1,495). 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 much does it cost for a return flight from State of Washington to Melbourne?

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 $2,193, United Airlines can have you in Melbourne from State of Washington in 27h 34m. There are 13105 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, Seattle/Tacoma Intl - Melbourne Avalon and Portland - Melbourne.

  • 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, January is the cheapest month in which you can book a flight from State of Washington to Melbourne (average of $135). Flying from State of Washington to Melbourne in July is currently the most expensive (average of $1,495). 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 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 20 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,411Average$1,897FlexibilityNo 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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