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Cheap flights from Washington to Melbourne from $645

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Melbourne departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
10:45 - 10:30
SEA
-
MEL
28h 45m
1 stop
United Airlines Logo
11:30 - 11:33
MEL
-
SEA
19h 03m
1 stop
$1,422United Airlines
Sun, 22 Nov - Mon, 7 Dec
United Airlines Logo
07:00 - 10:30
SEA
-
MEL
32h 30m
2 stops
United Airlines Logo
12:45 - 12:12
MEL
-
SEA
18h 27m
1 stop
$1,430United Airlines
Sun, 22 Nov - Tue, 8 Dec
Delta Logo
17:50 - 07:50
SEA
-
MEL
21h 00m
1 stop
Delta Logo
10:00 - 20:30
MEL
-
SEA
27h 30m
1 stop
$1,433Delta
Mon, 17 Aug - Wed, 26 Aug
Delta Logo
07:15 - 07:50
SEA
-
MEL
31h 35m
2 stops
Delta Logo
10:00 - 00:01
MEL
-
SEA
31h 01m
2 stops
$1,438Delta
Fri, 24 Jul - Fri, 31 Jul
Delta Logo
14:50 - 07:50
SEA
-
MEL
24h 00m
1 stop
Delta Logo
10:00 - 16:54
MEL
-
SEA
23h 54m
2 stops
$1,440Delta
Mon, 17 Aug - Wed, 26 Aug
Delta Logo
21:45 - 07:50
SEA
-
MEL
41h 05m
1 stop
Delta Logo
10:00 - 14:50
MEL
-
SEA
21h 50m
1 stop
$1,441Delta
Thu, 6 Aug - Wed, 19 Aug
Multiple Airlines Logo
19:45 - 12:35
PDX
-
MEL
22h 50m
2 stops
Multiple Airlines Logo
06:15 - 09:31
MEL
-
PDX
21h 16m
2 stops
$1,535Multiple Airlines
Tue, 6 Oct - Mon, 12 Oct
Multiple Airlines Logo
19:45 - 20:05
PDX
-
AVV
31h 20m
2 stops
Multiple Airlines Logo
20:40 - 19:11
AVV
-
PDX
39h 31m
2 stops
$1,535Multiple Airlines
Sun, 9 Aug - Sun, 16 Aug
Qantas Airways Logo
07:00 - 06:45
PDX
-
MEL
30h 45m
1 stop
Qantas Airways Logo
09:45 - 23:59
MEL
-
PDX
31h 14m
1 stop
$1,560Qantas Airways
Thu, 6 Aug - Wed, 19 Aug
American Airlines Logo
17:08 - 06:45
PDX
-
MEL
20h 37m
1 stop
American Airlines Logo
09:45 - 16:38
MEL
-
PDX
23h 53m
1 stop
$1,564American Airlines
Mon, 20 Jul - Mon, 27 Jul

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American Airlines flights from State of Washington to Melbourne

Our best American Airlines deals on State of Washington to Melbourne flight tickets
American Airlines
15 Sept
SEA12:55Seattle/Tacoma Intl
24h 50m
1 stop
MEL06:45Melbourne
6 Oct
MEL09:45Melbourne
20h 40m
1 stop
SEA12:25Seattle/Tacoma Intl
$1,563
American Airlines
20 July
PDX17:08Portland
20h 37m
1 stop
MEL06:45Melbourne
27 July
MEL09:45Melbourne
23h 53m
1 stop
PDX16:38Portland
$1,564
American Airlines
1 July
PDX05:10Portland
30h 50m
1 stop
MEL05:00Melbourne
19 Aug
MEL09:45Melbourne
24h 06m
2 stops
PDX16:51Portland
$1,570

Air Canada flights from State of Washington to Melbourne

Our best Air Canada deals on State of Washington to Melbourne flight tickets
Air Canada
8 Nov
PDX19:10Portland
23h 25m
2 stops
MEL13:35Melbourne
29 Nov
MEL07:10Melbourne
30h 21m
2 stops
PDX18:31Portland
$1,566
Air Canada
8 Nov
PDX19:10Portland
24h 25m
2 stops
MEL14:35Melbourne
29 Nov
MEL07:10Melbourne
21h 16m
2 stops
PDX09:26Portland
$1,569
Air Canada
5 Aug
PDX15:30Portland
26h 50m
2 stops
MEL11:20Melbourne
18 Aug
MEL06:00Melbourne
25h 51m
2 stops
PDX14:51Portland
$1,570

momondo Fare Finder

 
Customise your flight search to find flights from State of 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, momondo users made 78,305 searches. Data last updated 26 June 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

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 22/11

10:45-10:30

1 stop28h 45m

Melbourne

Mon 7/12

11:30-11:33

1 stop19h 03m

$1,422

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Sun 22/11

07:00-10:30

2 stops32h 30m

Melbourne

Tue 8/12

12:45-12:12

1 stop18h 27m

$1,430

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 17/8

17:50-07:50

1 stop21h 00m

Melbourne

Wed 26/8

10:00-20:30

1 stop27h 30m

$1,433

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Fri 24/7

07:15-07:50

2 stops31h 35m

Melbourne

Fri 31/7

10:00-00:01

2 stops31h 01m

$1,438

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Mon 17/8

14:50-07:50

1 stop24h 00m

Melbourne

Wed 26/8

10:00-16:54

2 stops23h 54m

$1,440

SeattleMelbourne

SEA - MEL

SEAMEL

Seattle/Tacoma Intl

Thu 6/8

21:45-07:50

1 stop41h 05m

Melbourne

Wed 19/8

10:00-14:50

1 stop21h 50m

$1,441
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 6/10

19:45-12:35

2 stops22h 50m

Melbourne

Mon 12/10

06:15-09:31

2 stops21h 16m

$1,535

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 9/8

19:45-20:05

2 stops31h 20m

Melbourne Avalon

Sun 16/8

20:40-19:11

2 stops39h 31m

$1,535

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 6/8

07:00-06:45

1 stop30h 45m

Melbourne

Wed 19/8

09:45-23:59

1 stop31h 14m

$1,560

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 20/7

17:08-06:45

1 stop20h 37m

Melbourne

Mon 27/7

09:45-16:38

1 stop23h 53m

$1,564

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Melbourne from

How to get the cheapest flight ticket from State of Washington to Melbourne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Melbourne?

In general, January is the cheapest month to fly from State of Washington to Melbourne. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $141. If you aren’t able to travel to Melbourne during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $343.

How far in advance should I book a flight from Washington to Melbourne?

You are more likely to see cheaper flights to Melbourne from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Melbourne for around $1,804 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from State of Washington for as low as $1,493 on momondo.

Cheap State of Washington to Melbourne flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Melbourne

Fastest flight time

20h 46m

Direct flights

None
The fastest flight from State of Washington to Melbourne takes 20h 46m
There are no direct flights from State of Washington to Melbourne. There are no popular flight routes from State of Washington to Melbourne.
Search flight deals

Frequently asked questions about flying from Washington to Melbourne

  • When did momondo last update prices for flights from Washington to Melbourne?

    Prices for flights from Washington to Melbourne are updated daily.

  • How many operators does momondo search for flights from Washington to Melbourne?

  • How old do you have to be to fly from Washington to Melbourne?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Melbourne.

  • What documentation or ID do you need to fly to Melbourne?

    The travel and health documents required for your trip to Melbourne can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Melbourne. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from State of Washington to Melbourne

Compare and see reviews for airlines that fly from State of Washington to Melbourne with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,465Free cancellationRating
7.4
9,894 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Melbourne?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Melbourne from Washington.

Can I find flights from Washington to Melbourne with flexible booking policies on momondo?

momondo does allow users to show only those flights to Melbourne from Washington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington to Melbourne?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Melbourne.

I’m not ready to book a flight from Washington to Melbourne right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Melbourne now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Melbourne and let you know when they change.

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Find better results for your trip to Australia

Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 50.4 km from Melbourne
Melbourne Avalon Airport