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Cheap flights from Portland to Melbourne from $792

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Melbourne departing on 17/9. 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

Find the cheapest flights from Portland to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
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
$1,537Multiple 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
$1,537Multiple Airlines
Sun, 9 Aug - Sun, 16 Aug
Multiple Airlines Logo
19:45 - 12:10
PDX
-
MEL
22h 25m
2 stops
Multiple Airlines Logo
06:05 - 09:31
MEL
-
PDX
21h 26m
2 stops
$1,545Multiple Airlines
Sun, 4 Oct - Wed, 14 Oct
Multiple Airlines Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
21:05 - 09:31
MEL
-
PDX
29h 26m
2 stops
$1,556Multiple Airlines
Mon, 10 Aug - Mon, 17 Aug
Multiple Airlines Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
21:05 - 09:31
MEL
-
PDX
29h 26m
2 stops
$1,557Multiple Airlines
Mon, 10 Aug - Mon, 17 Aug
Multiple Airlines Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
20:45 - 19:11
MEL
-
PDX
39h 26m
2 stops
$1,563Multiple Airlines
Tue, 11 Aug - Sun, 23 Aug
Air Canada Logo
15:15 - 13:35
PDX
-
MEL
27h 20m
2 stops
Air Canada Logo
07:10 - 09:26
MEL
-
PDX
21h 16m
2 stops
$1,566Air Canada
Sun, 8 Nov - Sun, 29 Nov
Air Canada Logo
19:10 - 13:35
PDX
-
MEL
23h 25m
2 stops
Air Canada Logo
07:10 - 18:31
MEL
-
PDX
30h 21m
2 stops
$1,567Air Canada
Sun, 8 Nov - Sun, 29 Nov
Air Canada Logo
19:10 - 13:35
PDX
-
MEL
23h 25m
2 stops
Air Canada Logo
07:10 - 18:31
MEL
-
PDX
30h 21m
2 stops
$1,569Air Canada
Sun, 8 Nov - Sun, 29 Nov
Multiple Airlines Logo
19:45 - 15:35
PDX
-
AVV
25h 50m
2 stops
Multiple Airlines Logo
06:00 - 09:31
AVV
-
PDX
21h 31m
2 stops
$1,587Multiple Airlines
Sat, 3 Oct - Mon, 12 Oct

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American Airlines flights from Portland to Melbourne

Our best American Airlines deals on Portland to Melbourne flight tickets
American Airlines
7 Aug
PDX06:35Portland
31h 10m
1 stop
MEL06:45Melbourne
21 Aug
MEL09:45Melbourne
26h 14m
2 stops
PDX18:59Portland
$1,700
American Airlines
10 Aug
PDX11:58Portland
24h 02m
1 stop
MEL05:00Melbourne
17 Aug
MEL09:45Melbourne
24h 06m
2 stops
PDX16:51Portland
$1,709
American Airlines
10 Aug
PDX06:27Portland
29h 33m
1 stop
MEL05:00Melbourne
17 Aug
MEL09:45Melbourne
24h 06m
2 stops
PDX16:51Portland
$1,711

Air Canada flights from Portland to Melbourne

Our best Air Canada deals on Portland to Melbourne flight tickets
Air Canada
8 Nov
PDX15:15Portland
27h 20m
2 stops
MEL13:35Melbourne
29 Nov
MEL07:10Melbourne
21h 16m
2 stops
PDX09:26Portland
$1,566
Air Canada
8 Nov
PDX19:10Portland
23h 25m
2 stops
MEL13:35Melbourne
29 Nov
MEL07:10Melbourne
30h 21m
2 stops
PDX18:31Portland
$1,567
Air Canada
8 Nov
PDX19:10Portland
23h 25m
2 stops
MEL13:35Melbourne
29 Nov
MEL07:10Melbourne
30h 21m
2 stops
PDX18:31Portland
$1,569

momondo Fare Finder

 
Customise your flight search to find flights from Portland 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 29 June 2026.
Use the filters below to find and compare flights from Portland to Melbourne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

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

$1,537

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

$1,537
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 4/10

19:45-12:10

2 stops22h 25m

Melbourne

Wed 14/10

06:05-09:31

2 stops21h 26m

$1,545

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 10/8

19:45-11:20

2 stops22h 35m

Melbourne

Mon 17/8

21:05-09:31

2 stops29h 26m

$1,556

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 10/8

19:45-11:20

2 stops22h 35m

Melbourne

Mon 17/8

21:05-09:31

2 stops29h 26m

$1,557

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 11/8

19:45-11:20

2 stops22h 35m

Melbourne

Sun 23/8

20:45-19:11

2 stops39h 26m

$1,563

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 8/11

15:15-13:35

2 stops27h 20m

Melbourne

Sun 29/11

07:10-09:26

2 stops21h 16m

$1,566

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 8/11

19:10-13:35

2 stops23h 25m

Melbourne

Sun 29/11

07:10-18:31

2 stops30h 21m

$1,567

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 8/11

19:10-13:35

2 stops23h 25m

Melbourne

Sun 29/11

07:10-18:31

2 stops30h 21m

$1,569

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sat 3/10

19:45-15:35

2 stops25h 50m

Melbourne Avalon

Mon 12/10

06:00-09:31

2 stops21h 31m

$1,587

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Melbourne from

How to get the cheapest flight ticket from Portland 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 typical price of a round-trip flight between Portland and Melbourne?

What is the cheapest month to fly to Melbourne?

In general, December is the cheapest month to fly from Portland to Melbourne. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $832. If you aren’t able to travel to Melbourne during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $1,097.

Cheap Portland to Melbourne flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Melbourne

Fastest flight time

22h 25m

Direct flights

None
The fastest flight from Portland to Melbourne takes 22h 25m
There are no direct flights from Portland to Melbourne. There are no popular flight routes from Portland to Melbourne.
Search flight deals

Frequently asked questions about flying from Portland to Melbourne

  • How far is Portland to Melbourne by plane?

    Melbourne is 13045.2 km away from Portland. A reasonable flight in good conditions will take 22h 25m.

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

    Prices for flights from Portland Airport to Melbourne are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Melbourne.

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

    The necessary travel and health documents for your Melbourne trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Portland to Melbourne flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Melbourne that suits you.

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

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

How can momondo help me find flights from Portland 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 Portland to Melbourne.

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

If you are simply researching potential flights to Melbourne, momondo offers a useful price alert feature which will track prices for flights to Melbourne from Portland and alert you 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