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Cheap flights from Portland to Melbourne from $581

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 6/22. 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
2:39 pm - 6:45 am
PDX
-
MEL
23h 06m
1 stop
Multiple Airlines Logo
9:45 am - 8:48 pm
MEL
-
PDX
28h 03m
1 stop
$996Multiple Airlines
Fri, Aug 7 - Fri, Aug 14
Multiple Airlines Logo
9:27 pm - 6:45 am
PDX
-
MEL
40h 18m
1 stop
Multiple Airlines Logo
9:45 am - 1:44 pm
MEL
-
PDX
20h 59m
1 stop
$1,016Multiple Airlines
Sat, Aug 1 - Sun, Aug 9
Multiple Airlines Logo
2:39 pm - 6:45 am
PDX
-
MEL
23h 06m
1 stop
Multiple Airlines Logo
6:10 pm - 11:52 pm
MEL
-
PDX
22h 42m
2 stops
$1,036Multiple Airlines
Fri, Aug 7 - Fri, Aug 14
Qantas Airways Logo
5:37 pm - 6:45 am
PDX
-
MEL
20h 08m
1 stop
Qantas Airways Logo
9:45 am - 4:36 pm
MEL
-
PDX
23h 51m
1 stop
$1,070Qantas Airways
Tue, Aug 11 - Thu, Aug 20
Multiple Airlines Logo
7:10 pm - 1:35 pm
PDX
-
MEL
23h 25m
2 stops
Multiple Airlines Logo
8:10 am - 2:41 pm
MEL
-
PDX
25h 31m
2 stops
$1,080Multiple Airlines
Sun, Nov 8 - Sun, Nov 29
American Airlines Logo
3:27 pm - 6:45 am
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
1:35 pm - 11:09 pm
MEL
-
PDX
26h 34m
1 stop
$1,081American Airlines
Wed, Jul 1 - Wed, Aug 19
American Airlines Logo
3:27 pm - 6:45 am
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
9:45 am - 4:38 pm
MEL
-
PDX
23h 53m
2 stops
$1,086American Airlines
Wed, Jun 17 - Fri, Jul 17
American Airlines Logo
3:27 pm - 6:45 am
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
9:45 am - 10:39 pm
MEL
-
PDX
29h 54m
1 stop
$1,088American Airlines
Wed, Jun 17 - Fri, Jul 17
American Airlines Logo
3:27 pm - 6:45 am
PDX
-
MEL
22h 18m
1 stop
American Airlines Logo
9:45 am - 10:39 pm
MEL
-
PDX
29h 54m
1 stop
$1,089American Airlines
Wed, Jun 17 - Fri, Jul 17
Air New Zealand Logo
1:03 pm - 9:15 am
PDX
-
MEL
26h 12m
1 stop
Air New Zealand Logo
1:00 pm - 9:33 pm
MEL
-
PDX
26h 33m
1 stop
$1,091Air New Zealand
Thu, Oct 22 - Sun, Nov 1

United Airlines flights from Portland to Melbourne

Our best United Airlines deals on Portland to Melbourne flight tickets
United Airlines
Nov 1
PDX7:49 pmPortland
19h 11m
1 stop
MEL10:00 amMelbourne
Nov 13
MEL1:00 pmMelbourne
18h 25m
1 stop
PDX12:25 pmPortland
$1,092
United Airlines
Jul 1
PDX6:03 pmPortland
21h 12m
1 stop
MEL8:15 amMelbourne
Aug 19
MEL10:55 amMelbourne
27h 08m
1 stop
PDX9:03 pmPortland
$1,093
United Airlines
Jul 1
PDX12:50 pmPortland
26h 25m
2 stops
MEL8:15 amMelbourne
Aug 19
MEL9:30 amMelbourne
22h 35m
2 stops
PDX3:05 pmPortland
$1,097

American Airlines flights from Portland to Melbourne

Our best American Airlines deals on Portland to Melbourne flight tickets
American Airlines
Jul 1
PDX3:27 pmPortland
22h 18m
1 stop
MEL6:45 amMelbourne
Aug 19
MEL1:35 pmMelbourne
26h 34m
1 stop
PDX11:09 pmPortland
$1,081
American Airlines
Jun 17
PDX3:27 pmPortland
22h 18m
1 stop
MEL6:45 amMelbourne
Jul 17
MEL9:45 amMelbourne
23h 53m
2 stops
PDX4:38 pmPortland
$1,086
American Airlines
Jun 17
PDX3:27 pmPortland
22h 18m
1 stop
MEL6:45 amMelbourne
Jul 17
MEL9:45 amMelbourne
29h 54m
1 stop
PDX10:39 pmPortland
$1,088

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 May 29, 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

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/7

2:39 pm-6:45 am

1 stop23h 06m

Melbourne

Fri 8/14

9:45 am-8:48 pm

1 stop28h 03m

$996

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 8/1

9:27 pm-6:45 am

1 stop40h 18m

Melbourne

Sun 8/9

9:45 am-1:44 pm

1 stop20h 59m

$1,016

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/7

2:39 pm-6:45 am

1 stop23h 06m

Melbourne

Fri 8/14

6:10 pm-11:52 pm

2 stops22h 42m

$1,036
Quickest round-trip

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 8/11

5:37 pm-6:45 am

1 stop20h 08m

Melbourne

Thu 8/20

9:45 am-4:36 pm

1 stop23h 51m

$1,070

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 11/8

7:10 pm-1:35 pm

2 stops23h 25m

Melbourne

Sun 11/29

8:10 am-2:41 pm

2 stops25h 31m

$1,080

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 7/1

3:27 pm-6:45 am

1 stop22h 18m

Melbourne

Wed 8/19

1:35 pm-11:09 pm

1 stop26h 34m

$1,081

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 6/17

3:27 pm-6:45 am

1 stop22h 18m

Melbourne

Fri 7/17

9:45 am-4:38 pm

2 stops23h 53m

$1,086

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 6/17

3:27 pm-6:45 am

1 stop22h 18m

Melbourne

Fri 7/17

9:45 am-10:39 pm

1 stop29h 54m

$1,088

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 6/17

3:27 pm-6:45 am

1 stop22h 18m

Melbourne

Fri 7/17

9:45 am-10:39 pm

1 stop29h 54m

$1,089

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 10/22

1:03 pm-9:15 am

1 stop26h 12m

Melbourne

Sun 11/1

1:00 pm-9:33 pm

1 stop26h 33m

$1,091

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, 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
1,043 reviews
Search Qantas Airways flights
Air CanadaPriceFrom $928Free CancellationRating
7.1
11,095 reviews
Search Air Canada flights
United AirlinesPriceFrom $974Free CancellationRating
7.4
9,759 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