Cheap flights from Portland to Melbourne from $507

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 3/31. 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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American Airlines Logo
5:30 am - 5:00 amPDX-MEL
28h 30m1 stop
American Airlines Logo
12:00 pm - 10:25 pmMEL-PDX
29h 25m1 stop
$936American Airlines
Find Deal
Fri, Nov 7 - Sat, Nov 22
Qantas Airways Logo
2:40 pm - 9:30 amPDX-MEL
23h 50m1 stop
Qantas Airways Logo
12:00 pm - 8:35 pmMEL-PDX
27h 35m1 stop
$952Qantas Airways
Find Deal
Tue, Feb 24 - Sat, Mar 7
Air Canada Logo
7:00 pm - 3:35 pmPDX-MEL
25h 35m2 stops
Air Canada Logo
7:10 am - 9:15 amMEL-PDX
20h 05m2 stops
$960Air Canada
Find Deal
Fri, Mar 6 - Sun, Mar 15
Multiple Airlines Logo
7:00 pm - 2:05 pmPDX-MEL
24h 05m2 stops
Multiple Airlines Logo
7:10 am - 6:30 pmMEL-PDX
29h 20m2 stops
$962Multiple Airlines
Find Deal
Thu, Mar 5 - Sun, Mar 15
Multiple Airlines Logo
5:55 pm - 9:30 amPDX-MEL
20h 35m1 stop
Multiple Airlines Logo
12:00 pm - 9:36 amMEL-PDX
40h 36m1 stop
$969Multiple Airlines
Find Deal
Sat, Nov 8 - Sat, Nov 22
United Airlines Logo
3:35 pm - 10:00 amPDX-MEL
23h 25m1 stop
United Airlines Logo
1:00 pm - 2:46 pmMEL-PDX
20h 46m1 stop
$975United Airlines
Find Deal
Sat, Dec 27 - Fri, Jan 16
United Airlines Logo
8:30 am - 10:00 amPDX-MEL
30h 30m2 stops
United Airlines Logo
11:30 am - 10:52 pmMEL-PDX
30h 22m3 stops
$980United Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Delta Logo
7:14 pm - 8:00 amPDX-MEL
41h 46m2 stops
Delta Logo
10:00 am - 4:33 pmMEL-PDX
23h 33m2 stops
$1,027Delta
Find Deal
Tue, Feb 24 - Sun, Jun 14
Delta Logo
7:55 pm - 8:00 amPDX-MEL
41h 05m1 stop
Delta Logo
10:10 am - 11:53 amMEL-PDX
20h 43m1 stop
$1,029Delta
Find Deal
Tue, Dec 30 - Wed, Jan 14
Air Canada Logo
7:00 pm - 3:15 pmPDX-MEL
25h 15m2 stops
Air Canada Logo
7:10 am - 6:30 pmMEL-PDX
30h 20m2 stops
$1,042Air Canada
Find Deal
Sat, Feb 28 - Wed, Mar 4

American Airlines flights from Portland to Melbourne

Our best American Airlines deals on Portland to Melbourne flight tickets
American Airlines
Nov 7
PDX5:30 amPortland
28h 30m
1 stop
MEL5:00 amMelbourne
Nov 22
MEL12:00 pmMelbourne
29h 25m
1 stop
PDX10:25 pmPortland
American Airlines
Nov 15
PDX11:40 amPortland
26h 50m
2 stops
MEL9:30 amMelbourne
Nov 29
MEL12:00 pmMelbourne
24h 12m
1 stop
PDX5:12 pmPortland
American Airlines
Nov 15
PDX6:00 amPortland
32h 30m
1 stop
MEL9:30 amMelbourne
Nov 29
MEL12:00 pmMelbourne
24h 12m
1 stop
PDX5:12 pmPortland

Qantas Airways flights from Portland to Melbourne

Our best Qantas Airways deals on Portland to Melbourne flight tickets
Qantas Airways
Feb 24
PDX2:40 pmPortland
23h 50m
1 stop
MEL9:30 amMelbourne
Mar 7
MEL12:00 pmMelbourne
27h 35m
1 stop
PDX8:35 pmPortland
Qantas Airways
Dec 25
PDX4:26 pmPortland
22h 04m
1 stop
MEL9:30 amMelbourne
Jan 7
MEL6:30 pmMelbourne
38h 11m
2 stops
PDX1:41 pmPortland
Qantas Airways
Jan 17
PDX5:50 pmPortland
25h 15m
2 stops
MEL2:05 pmMelbourne
Jan 24
MEL12:00 pmMelbourne
23h 49m
1 stop
PDX4:49 pmPortland

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 October 13, 2025.
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

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 11/7

5:30 am-5:00 am

1 stop28h 30m

Melbourne

Sat 11/22

12:00 pm-10:25 pm

1 stop29h 25m

$936

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

2:40 pm-9:30 am

1 stop23h 50m

Melbourne

Sat 3/7

12:00 pm-8:35 pm

1 stop27h 35m

$952

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/6

7:00 pm-3:35 pm

2 stops25h 35m

Melbourne

Sun 3/15

7:10 am-9:15 am

2 stops20h 05m

$960

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 3/5

7:00 pm-2:05 pm

2 stops24h 05m

Melbourne

Sun 3/15

7:10 am-6:30 pm

2 stops29h 20m

$962

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 11/8

5:55 pm-9:30 am

1 stop20h 35m

Melbourne

Sat 11/22

12:00 pm-9:36 am

1 stop40h 36m

$969

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 12/27

3:35 pm-10:00 am

1 stop23h 25m

Melbourne

Fri 1/16

1:00 pm-2:46 pm

1 stop20h 46m

$975

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 11/27

8:30 am-10:00 am

2 stops30h 30m

Melbourne

Thu 12/4

11:30 am-10:52 pm

3 stops30h 22m

$980

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:14 pm-8:00 am

2 stops41h 46m

Melbourne

Sun 6/14

10:00 am-4:33 pm

2 stops23h 33m

$1,027

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 12/30

7:55 pm-8:00 am

1 stop41h 05m

Melbourne

Wed 1/14

10:10 am-11:53 am

1 stop20h 43m

$1,029

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 2/28

7:00 pm-3:15 pm

2 stops25h 15m

Melbourne

Wed 3/4

7:10 am-6:30 pm

2 stops30h 20m

$1,042

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, November 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 $1,008. The month of February is another great option to travel to Melbourne, with average flight prices from Portland averaging around $1,019.

What is the cheapest day to depart on your flight to Melbourne?

On average, the least expensive day to fly to Melbourne from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,291. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Melbourne on Saturday is $1,534.

What is the cheapest time of day to depart on your flight to Melbourne?

Our most recent data shows that the best time of day to fly to Melbourne is in the evening. Flights from Portland to Melbourne during this time can be as low as $1,342. Flights to Melbourne are more costly in the morning, with an average ticket price of $1,943. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Melbourne?

You are more likely to see cheaper flights to Melbourne from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Melbourne for around $1,354 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Melbourne from Portland for as low as $1,040 on momondo.

Cheap Portland to Melbourne flight deals and tips

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

Direct flights

None
There are no direct flights from Portland to Melbourne. There are no popular flight routes 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 19h 15m 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 $928Free CancellationRating
7.1
10,286 reviews
Search Air Canada flights
United AirlinesPriceFrom $957Free CancellationRating
7.4
8,973 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $997Free CancellationRating
7.5
917 reviews
Search Qantas Airways 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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1 adult
Wed 11/12
Wed 11/19

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