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Cheap flights from Portland to Melbourne from $841

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 2/9. 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 - 16:35PDX  Portland-MEL Melbourne
26h 50m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
07:10 - 09:31MEL  Melbourne-PDX Portland
20h 21m2 stops Brisbane Vancouver Intl
$1,412Multiple Airlines
Wed, 14 Oct - Wed, 21 Oct
Multiple Airlines Logo
19:10 - 14:35PDX  Portland-MEL Melbourne
24h 25m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
06:05 - 09:25MEL  Melbourne-PDX Portland
22h 20m2 stops Brisbane Vancouver Intl
$1,413Multiple Airlines
Sun, 7 Feb - Mon, 1 Mar
Multiple Airlines Logo
19:10 - 13:50PDX  Portland-MEL Melbourne
23h 40m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
06:05 - 09:26MEL  Melbourne-PDX Portland
22h 21m2 stops Brisbane Vancouver Intl
$1,425Multiple Airlines
Sun, 1 Nov - Sun, 8 Nov
Multiple Airlines Logo
19:45 - 11:40PDX  Portland-MEL Melbourne
22h 55m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
06:05 - 09:31MEL  Melbourne-PDX Portland
21h 26m2 stops Brisbane Vancouver Intl
$1,425Multiple Airlines
Sun, 27 Sep - Sun, 18 Oct
Multiple Airlines Logo
19:10 - 12:25PDX  Portland-MEL Melbourne
23h 15m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
06:05 - 09:26MEL  Melbourne-PDX Portland
22h 21m2 stops Brisbane Vancouver Intl
$1,458Multiple Airlines
Mon, 26 Oct - Thu, 19 Nov
Multiple Airlines Logo
19:10 - 12:25PDX  Portland-MEL Melbourne
23h 15m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
06:05 - 09:26MEL  Melbourne-PDX Portland
22h 21m2 stops Brisbane Vancouver Intl
$1,458Multiple Airlines
Mon, 26 Oct - Thu, 19 Nov
Multiple Airlines Logo
19:45 - 14:20PDX  Portland-AVV Melbourne Avalon
25h 35m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
20:40 - 09:31AVV  Melbourne Avalon-PDX Portland
29h 51m2 stops Brisbane Vancouver Intl
$1,494Multiple Airlines
Sat, 12 Sep - Sat, 19 Sep
Multiple Airlines Logo
19:45 - 16:05PDX  Portland-AVV Melbourne Avalon
27h 20m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
20:55 - 09:31AVV  Melbourne Avalon-PDX Portland
29h 36m2 stops Sydney Kingsford Smith Vancouver Intl
$1,665Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
19:45 - 14:20PDX  Portland-AVV Melbourne Avalon
25h 35m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
06:00 - 09:31AVV  Melbourne Avalon-PDX Portland
21h 31m2 stops Sydney Kingsford Smith Vancouver Intl
$1,733Multiple Airlines
Sat, 26 Sep - Sun, 18 Oct
United Airlines Logo
13:25 - 10:30PDX  Portland-MEL Melbourne
26h 05m1 stop San Francisco
United Airlines Logo
12:45 - 14:37MEL  Melbourne-PDX Portland
20h 52m1 stop San Francisco
$1,734United Airlines
Thu, 5 Nov - Mon, 9 Nov

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Air Canada flights from Portland to Melbourne

Our best Air Canada deals on Portland to Melbourne flight tickets
Air Canada
8 Nov
PDX15:15Portland
28h 20m
2 stops
MEL14:35Melbourne
29 Nov
MEL07:30Melbourne
32h 16m
2 stops
PDX20:46Portland
$1,477
Air Canada
8 Nov
PDX15:15Portland
28h 20m
2 stops
MEL14:35Melbourne
29 Nov
MEL07:30Melbourne
32h 16m
2 stops
PDX20:46Portland
$1,478
Air Canada
28 Sept
PDX19:45Portland
22h 20m
2 stops
MEL11:05Melbourne
5 Oct
MEL06:15Melbourne
21h 16m
2 stops
PDX09:31Portland
$1,554

American Airlines flights from Portland to Melbourne

Our best American Airlines deals on Portland to Melbourne flight tickets
American Airlines
28 Sept
PDX09:00Portland
27h 00m
2 stops
MEL05:00Melbourne
5 Oct
MEL14:35Melbourne
24h 36m
1 stop
PDX21:11Portland
$1,690
American Airlines
23 Aug
PDX06:35Portland
31h 10m
1 stop
MEL06:45Melbourne
5 Sept
MEL09:45Melbourne
24h 06m
2 stops
PDX16:51Portland
$1,719

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 17 August 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 Portland - MEL Melbourne

PDXMEL

Portland

Wed 14/10

19:45-16:35

2 stops26h 50m

Melbourne

Wed 21/10

07:10-09:31

2 stops20h 21m

$1,412

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Sun 7/2

19:10-14:35

2 stops24h 25m

Melbourne

Mon 1/3

06:05-09:25

2 stops22h 20m

$1,413

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Sun 1/11

19:10-13:50

2 stops23h 40m

Melbourne

Sun 8/11

06:05-09:26

2 stops22h 21m

$1,425
Fastest return journey

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Sun 27/9

19:45-11:40

2 stops22h 55m

Melbourne

Sun 18/10

06:05-09:31

2 stops21h 26m

$1,425

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Mon 26/10

19:10-12:25

2 stops23h 15m

Melbourne

Thu 19/11

06:05-09:26

2 stops22h 21m

$1,458

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Mon 26/10

19:10-12:25

2 stops23h 15m

Melbourne

Thu 19/11

06:05-09:26

2 stops22h 21m

$1,458

PortlandMelbourne

PDX Portland - AVV Melbourne Avalon

PDXAVV

Portland

Sat 12/9

19:45-14:20

2 stops25h 35m

Melbourne Avalon

Sat 19/9

20:40-09:31

2 stops29h 51m

$1,494

PortlandMelbourne

PDX Portland - AVV Melbourne Avalon

PDXAVV

Portland

Thu 10/9

19:45-16:05

2 stops27h 20m

Melbourne Avalon

Thu 17/9

20:55-09:31

2 stops29h 36m

$1,665

PortlandMelbourne

PDX Portland - AVV Melbourne Avalon

PDXAVV

Portland

Sat 26/9

19:45-14:20

2 stops25h 35m

Melbourne Avalon

Sun 18/10

06:00-09:31

2 stops21h 31m

$1,733

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Thu 5/11

13:25-10:30

1 stop26h 05m

Melbourne

Mon 9/11

12:45-14:37

1 stop20h 52m

$1,734

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,575 to $1,723.
The lowest price recently found on this route was $1,412.

What is the cheapest month to fly to Melbourne?

In general, June 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 $1,384. If you aren’t able to travel to Melbourne during the month of June, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,395.

Cheap Portland to Melbourne flight deals and tips

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

Best price found

$841

Fastest flight time

22h 35m

Direct flights

None
The best one-way flight to Melbourne from Portland in the past 72 hours is $841. The best return flight deal from Portland to Melbourne found on momondo in the last 72 hours is $1,412.
The fastest flight from Portland to Melbourne takes 22h 35m
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 35m.

  • 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