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Cheap flights from Washington to Melbourne Airport from $729

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MEL
18 Aug — 25 Aug1
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 19 July 2026.

Fri 7/817:50
SEA
-
MEL
1 stop21h 00m
Delta
Wed 19/810:00
MEL
-
SEA
1 stop21h 50m
Delta
Deal found 15/7$1,415
Wed 12/809:59
SEA
-
MEL
1 stop28h 51m
Delta
Fri 21/810:00
MEL
-
SEA
2 stops23h 54m
Delta
Deal found 17/7$1,423
Thu 20/821:45
SEA
-
MEL
1 stop41h 05m
Delta
Wed 2/910:00
MEL
-
SEA
1 stop27h 30m
Delta
Deal found 16/7$1,466
Fri 25/911:41
SEA
-
MEL
1 stop26h 04m
Multiple Airlines
Fri 23/1009:45
MEL
-
SEA
1 stop20h 31m
Multiple Airlines
Deal found 18/7$1,479
Mon 5/1012:36
SEA
-
MEL
1 stop26h 14m
Delta
Tue 13/1011:00
MEL
-
SEA
1 stop19h 30m
Delta
Deal found 15/7$1,500
Sun 23/810:10
PDX
-
MEL
2 stops35h 05m
Multiple Airlines
Mon 31/806:00
MEL
-
PDX
2 stops20h 31m
Multiple Airlines
Deal found 17/7$1,539
Mon 24/819:45
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Mon 31/806:00
MEL
-
PDX
2 stops20h 31m
Multiple Airlines
Deal found 14/7$1,542
Tue 18/819:45
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Mon 24/821:05
MEL
-
PDX
2 stops29h 26m
Multiple Airlines
Deal found 18/7$1,548
Sun 8/1115:15
PDX
-
MEL
2 stops28h 20m
Air Canada
Sun 29/1107:30
MEL
-
PDX
2 stops30h 01m
Air Canada
Deal found 15/7$1,555
Mon 26/1019:10
PDX
-
MEL
2 stops23h 15m
Multiple Airlines
Thu 19/1106:05
MEL
-
PDX
2 stops22h 21m
Multiple Airlines
Deal found 16/7$1,589
Sat 15/819:45
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Sat 22/821:05
MEL
-
PDX
2 stops29h 26m
Multiple Airlines
Deal found 17/7$1,601
Wed 25/1119:10
PDX
-
MEL
2 stops24h 40m
Multiple Airlines
Sun 29/1107:30
MEL
-
PDX
2 stops20h 56m
Multiple Airlines
Deal found 14/7$1,618

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 19 July 2026.

Round-trip from

$1,415

One-way from

$729

Popular in

December

Cheapest in

March

Average price

$1,904
Delta
  • Delta
  • 7/8-19/8
  • 2 total stops
  • 42h 50m total
  • Washington to Melbourne
Search Deals
Delta
  • Delta
  • 27/7
  • 1 total stop
  • 26h 15m total
  • Washington to Melbourne
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($482 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($73 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 19 July 2026.
Use the filters below to find and compare flights from Washington to Melbourne Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 5/10

09:59-08:50

1 stop28h 51m

Melbourne

Tue 13/10

11:00-14:50

1 stop21h 50m

$1,502

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 25/9

13:24-07:50

2 stops25h 26m

Melbourne

Fri 23/10

11:00-22:05

2 stops29h 05m

$1,552

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 4/8

19:05-08:15

1 stop20h 10m

Melbourne

Sat 15/8

07:00-18:29

2 stops28h 29m

$1,596

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 17/11

17:55-09:50

1 stop20h 55m

Melbourne

Sat 19/12

12:00-22:05

1 stop29h 05m

$1,715

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 14/8

17:35-07:50

1 stop21h 15m

Melbourne

Fri 21/8

10:00-19:16

1 stop26h 16m

$1,727
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 14/8

19:15-08:15

1 stop20h 00m

Melbourne

Fri 21/8

10:55-14:47

1 stop20h 52m

$1,734

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 24/8

19:15-08:15

1 stop20h 00m

Melbourne

Tue 1/9

10:55-18:19

1 stop24h 24m

$1,735

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Tue 17/11

13:00-10:30

2 stops26h 30m

Melbourne

Sat 19/12

12:45-18:31

1 stop24h 46m

$1,741

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 26/10

11:00-08:50

1 stop27h 50m

Melbourne

Thu 19/11

12:00-16:27

2 stops23h 27m

$1,748

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 27/9

10:56-08:15

1 stop28h 19m

Melbourne

Sat 10/10

11:55-14:26

1 stop20h 31m

$1,750

Flights are sorted by cheapest return flights first.

Deals found on 19/7

Showing 1-10 of 31 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 Airport

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

Currently, March is the cheapest month in which you can book a flight from State of Washington to Melbourne Airport (average of $1,480). Flying from State of Washington to Melbourne Airport in December is currently the most expensive (average of $2,342). 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 Airport?

How far ahead should I book a flight from State of Washington to Melbourne Airport?

To ensure you get the cheapest price possible for a flight from State of Washington to Melbourne Airport, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 Airport?

    For as low as $1,596, Delta can have you in Melbourne Airport from State of Washington in 20h 10m. There are 13164 km between State of Washington and Melbourne Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Airport?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to Melbourne Airport (average of $1,480). Flying from State of Washington to Melbourne Airport in December is currently the most expensive (average of $2,342). 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

Travelling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Dandenong
Geelong
Ballarat
Tullamarine
Apollo Bay
Lorne
Shepparton
St Kilda
Phillip Island
Sorrento
Torquay
Daylesford
Mornington
Brighton

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 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,448Average$1,565FlexibilityNo 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?

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 Melbourne from Washington.

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, Cheapflights offers price alerts on Washington to Melbourne flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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