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Cheap flights from Portland to Melbourne from $512

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 9/13. 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
0 bags

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Find the cheapest flights from Portland to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
6:00 am - 9:30 am
MEL
-
PDX
20h 30m
2 stops
$899Multiple Airlines
Fri, May 8 - Thu, May 21
Multiple Airlines Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
9:05 pm - 9:30 am
MEL
-
PDX
29h 25m
2 stops
$901Multiple Airlines
Fri, May 8 - Thu, May 21
Multiple Airlines Logo
7:45 pm - 11:25 am
PDX
-
MEL
22h 40m
2 stops
Multiple Airlines Logo
6:00 am - 9:31 am
MEL
-
PDX
20h 31m
2 stops
$902Multiple Airlines
Wed, Jun 17 - Fri, Jul 17
Multiple Airlines Logo
3:30 pm - 11:20 am
PDX
-
MEL
26h 50m
2 stops
Multiple Airlines Logo
6:00 am - 2:45 pm
MEL
-
PDX
25h 45m
2 stops
$903Multiple Airlines
Thu, May 28 - Thu, Jun 4
Multiple Airlines Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Multiple Airlines Logo
8:45 pm - 9:30 am
MEL
-
PDX
29h 45m
2 stops
$904Multiple Airlines
Tue, May 19 - Sun, May 24
Air Canada Logo
3:30 pm - 11:05 am
PDX
-
MEL
26h 35m
2 stops
Air Canada Logo
6:00 am - 7:11 pm
MEL
-
PDX
30h 11m
2 stops
$907Air Canada
Tue, Aug 4 - Tue, Aug 18
Air Canada Logo
7:45 pm - 11:20 am
PDX
-
MEL
22h 35m
2 stops
Air Canada Logo
6:00 am - 7:11 pm
MEL
-
PDX
30h 11m
2 stops
$910Air Canada
Mon, Aug 3 - Tue, Aug 18
Air Canada Logo
10:10 am - 11:05 am
PDX
-
MEL
31h 55m
2 stops
Air Canada Logo
8:40 pm - 9:31 am
MEL
-
PDX
29h 51m
2 stops
$912Air Canada
Sun, Aug 2 - Mon, Aug 17
Qantas Airways Logo
2:39 pm - 2:10 pm
PDX
-
AVV
30h 31m
2 stops
Qantas Airways Logo
8:50 am - 9:14 pm
AVV
-
PDX
29h 24m
2 stops
$1,898Qantas Airways
Tue, Aug 11 - Tue, Aug 25
Qantas Airways Logo
5:35 pm - 8:05 pm
PDX
-
AVV
33h 30m
2 stops
Qantas Airways Logo
6:00 am - 11:30 pm
AVV
-
PDX
34h 30m
2 stops
$1,901Qantas Airways
Sun, Sep 6 - Sun, Sep 20

Air Canada flights from Portland to Melbourne

Our best Air Canada deals on Portland to Melbourne flight tickets
Air Canada
Aug 4
PDX3:30 pmPortland
26h 35m
2 stops
MEL11:05 amMelbourne
Aug 18
MEL6:00 amMelbourne
30h 11m
2 stops
PDX7:11 pmPortland
$907
Air Canada
Aug 3
PDX7:45 pmPortland
22h 35m
2 stops
MEL11:20 amMelbourne
Aug 18
MEL6:00 amMelbourne
30h 11m
2 stops
PDX7:11 pmPortland
$910
Air Canada
Aug 2
PDX10:10 amPortland
31h 55m
2 stops
MEL11:05 amMelbourne
Aug 17
MEL8:40 pmMelbourne
29h 51m
2 stops
PDX9:31 amPortland
$912

Delta flights from Portland to Melbourne

Our best Delta deals on Portland to Melbourne flight tickets
Delta
Jul 31
PDX5:37 pmPortland
21h 13m
1 stop
MEL7:50 amMelbourne
Aug 14
MEL10:00 amMelbourne
26h 26m
1 stop
PDX7:26 pmPortland
$1,128
Delta
Aug 20
PDX7:14 pmPortland
43h 36m
2 stops
MEL7:50 amMelbourne
Aug 28
MEL10:00 amMelbourne
23h 10m
1 stop
PDX4:10 pmPortland
$1,131
Delta
Aug 20
PDX7:14 pmPortland
43h 36m
2 stops
MEL7:50 amMelbourne
Aug 28
MEL10:00 amMelbourne
26h 26m
1 stop
PDX7:26 pmPortland
$1,133

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated April 13, 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 round-trip
Quickest round-trip

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Thu 5/21

6:00 am-9:30 am

2 stops20h 30m

$899

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 5/8

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Thu 5/21

9:05 pm-9:30 am

2 stops29h 25m

$901

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 6/17

7:45 pm-11:25 am

2 stops22h 40m

Melbourne

Fri 7/17

6:00 am-9:31 am

2 stops20h 31m

$902

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 5/28

3:30 pm-11:20 am

2 stops26h 50m

Melbourne

Thu 6/4

6:00 am-2:45 pm

2 stops25h 45m

$903

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 5/19

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Sun 5/24

8:45 pm-9:30 am

2 stops29h 45m

$904

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 8/4

3:30 pm-11:05 am

2 stops26h 35m

Melbourne

Tue 8/18

6:00 am-7:11 pm

2 stops30h 11m

$907

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 8/3

7:45 pm-11:20 am

2 stops22h 35m

Melbourne

Tue 8/18

6:00 am-7:11 pm

2 stops30h 11m

$910

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 8/2

10:10 am-11:05 am

2 stops31h 55m

Melbourne

Mon 8/17

8:40 pm-9:31 am

2 stops29h 51m

$912

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 8/11

2:39 pm-2:10 pm

2 stops30h 31m

Melbourne Avalon

Tue 8/25

8:50 am-9:14 pm

2 stops29h 24m

$1,898

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 9/6

5:35 pm-8:05 pm

2 stops33h 30m

Melbourne Avalon

Sun 9/20

6:00 am-11:30 pm

2 stops34h 30m

$1,901

Flights are sorted by cheapest round-trip 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, 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 $969. The month of February is another great option to travel to Melbourne, with average flight prices from Portland averaging around $984.

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?

    The straight-line distance from Portland to Melbourne is 8105.9 mi. Typically, this will take 22h 25m by plane in normal conditions.

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

    Prices for flights from Portland Airport to Melbourne were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 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 license, 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 Portland to Melbourne

Compare and see reviews for airlines that fly from Portland to Melbourne with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $574Free CancellationRating
7.1
10,916 reviews
Search Air Canada flights
Qantas AirwaysPriceFrom $757Free CancellationRating
7.5
1,018 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $974Free CancellationRating
7.4
9,579 reviews
Search United Airlines flights

Why use momondo?

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

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

Yes. All flights to Melbourne from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Portland and Melbourne by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Portland to Melbourne flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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 31.3 mi from Melbourne
Melbourne Avalon Airport