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Cheap flights from Portland to Melbourne from $708

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 15/8. 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

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
21:05 - 09:30
MEL
-
PDX
29h 25m
2 stops
$1,305Multiple Airlines
Mon, 11 May - Mon, 18 May
Multiple Airlines Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
21:05 - 09:30
MEL
-
PDX
29h 25m
2 stops
$1,308Multiple Airlines
Fri, 8 May - Thu, 21 May
Multiple Airlines Logo
19:45 - 11:25
PDX
-
MEL
22h 40m
2 stops
Multiple Airlines Logo
06:00 - 09:31
MEL
-
PDX
20h 31m
2 stops
$1,309Multiple Airlines
Wed, 17 Jun - Fri, 17 Jul
Multiple Airlines Logo
19:45 - 11:05
PDX
-
MEL
22h 20m
2 stops
Multiple Airlines Logo
06:00 - 09:31
MEL
-
PDX
20h 31m
2 stops
$1,311Multiple Airlines
Tue, 8 Sep - Tue, 15 Sep
Air Canada Logo
19:45 - 11:05
PDX
-
MEL
22h 20m
2 stops
Air Canada Logo
06:00 - 14:45
MEL
-
PDX
25h 45m
2 stops
$1,312Air Canada
Tue, 12 May - Tue, 19 May
Air Canada Logo
15:30 - 11:05
PDX
-
MEL
26h 35m
2 stops
Air Canada Logo
06:00 - 14:51
MEL
-
PDX
25h 51m
2 stops
$1,319Air Canada
Sun, 6 Sep - Thu, 17 Sep
Air Canada Logo
19:45 - 11:20
PDX
-
MEL
22h 35m
2 stops
Air Canada Logo
06:00 - 09:31
MEL
-
PDX
20h 31m
2 stops
$1,322Air Canada
Mon, 7 Sep - Wed, 16 Sep
Qantas Airways Logo
17:40 - 14:20
PDX
-
AVV
27h 40m
2 stops
Qantas Airways Logo
10:30 - 23:54
AVV
-
PDX
30h 24m
2 stops
$2,749Qantas Airways
Tue, 8 Sep - Tue, 15 Sep
Qantas Airways Logo
14:56 - 14:20
PDX
-
AVV
30h 24m
2 stops
Qantas Airways Logo
20:55 - 17:12
AVV
-
PDX
39h 17m
2 stops
$2,750Qantas Airways
Tue, 1 Sep - Mon, 30 Nov
Qantas Airways Logo
17:35 - 14:10
PDX
-
AVV
27h 35m
2 stops
Qantas Airways Logo
20:40 - 21:14
AVV
-
PDX
41h 34m
2 stops
$2,752Qantas Airways
Tue, 4 Aug - Tue, 18 Aug

Air Canada flights from Portland to Melbourne

Our best Air Canada deals on Portland to Melbourne flight tickets
Air Canada
12 May
PDX19:45Portland
22h 20m
2 stops
MEL11:05Melbourne
19 May
MEL06:00Melbourne
25h 45m
2 stops
PDX14:45Portland
$1,312
Air Canada
6 Sept
PDX19:45Portland
22h 20m
2 stops
MEL11:05Melbourne
16 Sept
MEL06:00Melbourne
30h 06m
2 stops
PDX19:06Portland
$1,319
Air Canada
7 Sept
PDX19:45Portland
22h 35m
2 stops
MEL11:20Melbourne
16 Sept
MEL06:00Melbourne
20h 31m
2 stops
PDX09:31Portland
$1,322

Delta flights from Portland to Melbourne

Our best Delta deals on Portland to Melbourne flight tickets
Delta
7 Aug
PDX17:37Portland
21h 13m
1 stop
MEL07:50Melbourne
4 Sept
MEL10:00Melbourne
23h 10m
1 stop
PDX16:10Portland
$1,630
Delta
24 Apr
PDX13:05Portland
25h 45m
1 stop
MEL07:50Melbourne
1 May
MEL10:00Melbourne
19h 08m
1 stop
PDX12:08Portland
$1,639
Delta
20 Aug
PDX19:14Portland
43h 36m
2 stops
MEL07:50Melbourne
28 Aug
MEL10:00Melbourne
26h 26m
1 stop
PDX19:26Portland
$1,645

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 March 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

Mon 11/5

19:45-11:20

2 stops22h 35m

Melbourne

Mon 18/5

21:05-09:30

2 stops29h 25m

$1,305

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/5

19:45-11:20

2 stops22h 35m

Melbourne

Thu 21/5

21:05-09:30

2 stops29h 25m

$1,308

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 17/6

19:45-11:25

2 stops22h 40m

Melbourne

Fri 17/7

06:00-09:31

2 stops20h 31m

$1,309
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 8/9

19:45-11:05

2 stops22h 20m

Melbourne

Tue 15/9

06:00-09:31

2 stops20h 31m

$1,311

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 12/5

19:45-11:05

2 stops22h 20m

Melbourne

Tue 19/5

06:00-14:45

2 stops25h 45m

$1,312

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 6/9

15:30-11:05

2 stops26h 35m

Melbourne

Thu 17/9

06:00-14:51

2 stops25h 51m

$1,319

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 7/9

19:45-11:20

2 stops22h 35m

Melbourne

Wed 16/9

06:00-09:31

2 stops20h 31m

$1,322

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 8/9

17:40-14:20

2 stops27h 40m

Melbourne Avalon

Tue 15/9

10:30-23:54

2 stops30h 24m

$2,749

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 1/9

14:56-14:20

2 stops30h 24m

Melbourne Avalon

Mon 30/11

20:55-17:12

2 stops39h 17m

$2,750

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 4/8

17:35-14:10

2 stops27h 35m

Melbourne Avalon

Tue 18/8

20:40-21:14

2 stops41h 34m

$2,752

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 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, February 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 $1,431. If you aren’t able to travel to Melbourne during the month of February, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $1,431.

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 30m

Direct flights

None
The fastest flight from Portland to Melbourne takes 22h 30m
There are no direct flights from Portland to Melbourne. There are no popular flight routes from Portland to Melbourne.
Search flight deals

  • 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 30m.

  • 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