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Cheap flights from Portland to Melbourne from $550

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 9/17. 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 Portland to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:39 pm - 6:45 am
PDX
-
MEL
23h 06m
1 stop
Multiple Airlines Logo
9:45 am - 1:25 pm
MEL
-
PDX
20h 40m
1 stop
$1,078Multiple Airlines
Thu, Aug 6 - Wed, Aug 19
American Airlines Logo
2:45 pm - 9:30 am
PDX
-
MEL
24h 45m
1 stop
American Airlines Logo
12:00 pm - 10:59 pm
MEL
-
PDX
29h 59m
1 stop
$1,080American Airlines
Mon, Oct 26 - Thu, Nov 19
American Airlines Logo
6:35 am - 6:45 am
PDX
-
MEL
31h 10m
1 stop
American Airlines Logo
9:45 am - 4:51 pm
MEL
-
PDX
24h 06m
2 stops
$1,083American Airlines
Thu, Aug 6 - Wed, Aug 19
United Airlines Logo
6:03 pm - 8:15 am
PDX
-
MEL
21h 12m
1 stop
United Airlines Logo
10:55 am - 10:54 pm
MEL
-
PDX
28h 59m
2 stops
$1,085United Airlines
Thu, Jul 30 - Wed, Aug 12
Air Canada Logo
7:10 pm - 1:35 pm
PDX
-
MEL
23h 25m
2 stops
Air Canada Logo
7:00 am - 6:31 pm
MEL
-
PDX
30h 31m
2 stops
$1,087Air Canada
Sun, Nov 8 - Sun, Nov 29
Air Canada Logo
10:00 am - 2:35 pm
PDX
-
MEL
33h 35m
2 stops
Air Canada Logo
7:00 am - 8:46 pm
MEL
-
PDX
32h 46m
2 stops
$1,088Air Canada
Sun, Nov 8 - Sun, Nov 29
Air Canada Logo
7:10 pm - 1:35 pm
PDX
-
MEL
23h 25m
2 stops
Air Canada Logo
7:00 am - 6:31 pm
MEL
-
PDX
30h 31m
2 stops
$1,089Air Canada
Sun, Nov 8 - Sun, Nov 29
United Airlines Logo
1:14 pm - 8:15 am
PDX
-
MEL
26h 01m
1 stop
United Airlines Logo
10:55 am - 12:08 pm
MEL
-
PDX
18h 13m
1 stop
$1,091United Airlines
Wed, Jul 1 - Fri, Jul 31
Qantas Airways Logo
6:00 pm - 3:50 pm
PDX
-
AVV
27h 50m
2 stops
Qantas Airways Logo
2:50 pm - 8:49 pm
AVV
-
PDX
24h 59m
2 stops
$1,949Qantas Airways
Mon, Oct 26 - Thu, Nov 19
Qantas Airways Logo
5:00 pm - 3:50 pm
PDX
-
AVV
28h 50m
2 stops
Qantas Airways Logo
8:10 am - 8:49 pm
AVV
-
PDX
31h 39m
2 stops
$1,957Qantas Airways
Mon, Oct 26 - Thu, Nov 19

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Air Canada flights from Portland to Melbourne

Our best Air Canada deals on Portland to Melbourne flight tickets
Air Canada
Nov 8
PDX7:10 pmPortland
23h 25m
2 stops
MEL1:35 pmMelbourne
Nov 29
MEL7:00 amMelbourne
30h 31m
2 stops
PDX6:31 pmPortland
$1,087
Air Canada
Nov 8
PDX10:00 amPortland
33h 35m
2 stops
MEL2:35 pmMelbourne
Nov 29
MEL7:00 amMelbourne
32h 46m
2 stops
PDX8:46 pmPortland
$1,088
Air Canada
Nov 8
PDX7:10 pmPortland
23h 25m
2 stops
MEL1:35 pmMelbourne
Nov 29
MEL7:00 amMelbourne
30h 31m
2 stops
PDX6:31 pmPortland
$1,089

United Airlines flights from Portland to Melbourne

Our best United Airlines deals on Portland to Melbourne flight tickets
United Airlines
Jul 30
PDX7:00 amPortland
32h 15m
1 stop
MEL8:15 amMelbourne
Aug 12
MEL10:55 amMelbourne
20h 52m
1 stop
PDX2:47 pmPortland
$1,085
United Airlines
Jul 1
PDX1:14 pmPortland
26h 01m
1 stop
MEL8:15 amMelbourne
Aug 19
MEL10:55 amMelbourne
18h 05m
1 stop
PDX12:00 pmPortland
$1,090
United Airlines
Jul 1
PDX1:14 pmPortland
26h 01m
1 stop
MEL8:15 amMelbourne
Jul 31
MEL10:55 amMelbourne
18h 13m
1 stop
PDX12:08 pmPortland
$1,091

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 June 20, 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

Thu 8/6

2:39 pm-6:45 am

1 stop23h 06m

Melbourne

Wed 8/19

9:45 am-1:25 pm

1 stop20h 40m

$1,078

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 10/26

2:45 pm-9:30 am

1 stop24h 45m

Melbourne

Thu 11/19

12:00 pm-10:59 pm

1 stop29h 59m

$1,080

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 8/6

6:35 am-6:45 am

1 stop31h 10m

Melbourne

Wed 8/19

9:45 am-4:51 pm

2 stops24h 06m

$1,083

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 7/30

6:03 pm-8:15 am

1 stop21h 12m

Melbourne

Wed 8/12

10:55 am-10:54 pm

2 stops28h 59m

$1,085

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 11/8

7:10 pm-1:35 pm

2 stops23h 25m

Melbourne

Sun 11/29

7:00 am-6:31 pm

2 stops30h 31m

$1,087

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 11/8

10:00 am-2:35 pm

2 stops33h 35m

Melbourne

Sun 11/29

7:00 am-8:46 pm

2 stops32h 46m

$1,088

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 11/8

7:10 pm-1:35 pm

2 stops23h 25m

Melbourne

Sun 11/29

7:00 am-6:31 pm

2 stops30h 31m

$1,089

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 7/1

1:14 pm-8:15 am

1 stop26h 01m

Melbourne

Fri 7/31

10:55 am-12:08 pm

1 stop18h 13m

$1,091

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Mon 10/26

6:00 pm-3:50 pm

2 stops27h 50m

Melbourne Avalon

Thu 11/19

2:50 pm-8:49 pm

2 stops24h 59m

$1,949

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Mon 10/26

5:00 pm-3:50 pm

2 stops28h 50m

Melbourne Avalon

Thu 11/19

8:10 am-8:49 pm

2 stops31h 39m

$1,957

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $574. The month of November is another great option to travel to Melbourne, with average flight prices from Portland averaging around $757.

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

21h 12m

Direct flights

None
The fastest flight from Portland to Melbourne takes 21h 12m
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 21h 12m 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
Qantas AirwaysPriceFrom $757Free CancellationRating
7.5
1,047 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $928Free CancellationRating
7.1
11,231 reviews
Search Air Canada flights
United AirlinesPriceFrom $974Free CancellationRating
7.4
9,868 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