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$575+ Cheap flights from Portland (PDX) to Melbourne

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Melbourne are usually found in November or April, booked 62 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to Melbourne

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Melbourne (ME1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$970
(Trip.com)

One-way from

$575
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$1,301
From Portland to Melbourne
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One-way flight from Portland to Melbourne
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Highest demand for flights based on searches. 4% potential increase in price ($59 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Portland to Melbourne

Cheapest flights from Portland to Melbourne
Explore the most affordable flight options available from Portland to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/295:41 pmPDX - MEL
2 stops25h 19mMultiple Airlines
Wed 11/52:15 pmMEL - PDX
2 stops25h 35mMultiple Airlines
Deal found 8/18$970
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:35 pmPDX - MEL
1 stop19h 40mUnited Airlines
Thu 10/911:55 amMEL - PDX
1 stop20h 47mUnited Airlines
Deal found 8/16$974
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:49 amPDX - MEL
1 stop29h 11mUnited Airlines
Sat 11/291:00 pmMEL - PDX
1 stop30h 46mUnited Airlines
Deal found 8/16$980
This Trip.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:35 pmPDX - MEL
2 stops25h 50mMultiple Airlines
Mon 9/221:30 pmMEL - PDX
2 stops24h 00mMultiple Airlines
Deal found 8/17$1,053
This Air Canada deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:40 pmPDX - MEL
2 stops24h 40mAir Canada
Fri 10/317:00 amMEL - PDX
2 stops20h 15mAir Canada
Deal found 8/17$1,091
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Thu 3/511:30 amMEL - PDX
2 stops31h 49mUnited Airlines
Deal found 8/18$1,114
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:59 pmPDX - MEL
2 stops38h 31mUnited Airlines
Thu 3/51:00 pmMEL - PDX
2 stops23h 38mUnited Airlines
Deal found 8/18$1,118
This Air Canada deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:00 pmPDX - MEL
2 stops24h 45mAir Canada
Mon 12/156:50 pmMEL - PDX
2 stops38h 55mAir Canada
Deal found 8/18$1,129
This Jetabroad deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/205:36 pmPDX - MEL
2 stops25h 24mMultiple Airlines
Wed 10/82:25 pmMEL - PDX
2 stops24h 24mMultiple Airlines
Deal found 8/16$1,134
This Justfly.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/57:40 amPDX - MEL
2 stops38h 35mQantas Airways
Wed 11/1912:00 pmMEL - PDX
1 stop27h 50mQantas Airways
Deal found 8/16$1,135
This Orbitz deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:36 pmPDX - AVV
2 stops36h 14mMultiple Airlines
Tue 9/236:00 amAVV - PDX
2 stops30h 10mMultiple Airlines
Deal found 8/17$1,287
This Expedia deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:45 pmPDX - AVV
2 stops35h 05mMultiple Airlines
Fri 10/316:00 amAVV - PDX
2 stops25h 50mMultiple Airlines
Deal found 8/17$1,322

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Portland to Melbourne that are best for you.

Fly from

Portland

Fly to

Melbourne

Route

Depart

Return

Price

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 10/29

5:41 pm-1:00 pm

2 stops25h 19m

Melbourne

Wed 11/5

2:15 pm-8:50 pm

2 stops25h 35m

$970

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 8/28

7:35 pm-8:15 am

1 stop19h 40m

Melbourne

Thu 10/9

11:55 am-2:42 pm

1 stop20h 47m

$974

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 10/30

3:54 pm-9:00 am

1 stop23h 06m

Melbourne

Thu 11/13

1:00 pm-2:46 pm

1 stop20h 46m

$974

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 11/15

9:49 am-10:00 am

1 stop29h 11m

Melbourne

Sat 11/29

1:00 pm-12:46 am

1 stop30h 46m

$980

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 9/17

5:35 pm-12:25 pm

2 stops25h 50m

Melbourne

Mon 9/22

1:30 pm-8:30 pm

2 stops24h 00m

$1,053

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 10/19

7:40 pm-2:20 pm

2 stops24h 40m

Melbourne

Fri 10/31

7:00 am-9:15 am

2 stops20h 15m

$1,091

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 1/12

3:15 pm-5:40 pm

2 stops31h 25m

Melbourne

Sat 1/24

8:00 am-2:45 pm

2 stops25h 45m

$1,099

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 9/16

5:36 pm-10:50 pm

2 stops36h 14m

Melbourne Avalon

Tue 9/23

6:00 am-7:10 pm

2 stops30h 10m

$1,287

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 10/19

5:45 pm-10:50 pm

2 stops35h 05m

Melbourne Avalon

Fri 10/31

6:00 am-1:50 pm

2 stops25h 50m

$1,322

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Wed 10/29

5:55 pm-11:15 pm

2 stops35h 20m

Melbourne Avalon

Wed 11/5

6:00 am-1:50 pm

2 stops26h 50m

$1,322

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 26 results
1
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Best time to book a flight from Portland to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Melbourne

How far ahead should I book a flight from Portland to Melbourne?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Melbourne. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Melbourne, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Portland to Melbourne?

Currently, March is the cheapest month in which you can book a flight from Portland to Melbourne (average of $1,071). Flying from Portland to Melbourne in December is currently the most expensive (average of $1,774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to MEL?

Find hourly flight availability from Portland to Melbourne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from Portland to Melbourne is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 33% on airfare.

What is the cheapest day to fly from Portland to Melbourne?

Use this chart to determine the cheapest time to fly round-trip from Portland to Melbourne. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Melbourne flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Melbourne

Get insights into the airlines that provide service to Melbourne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Melbourne. Reviews last updated August 18, 2025.
Peruse reviews from past customers who have flown with Qantas Airways, United Airlines, and Air Canada from Portland to Melbourne to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
896 reviews

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Crew

8.2

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
896 reviews
Qantas Airways
7.5
Good
896 reviews

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Crew

8.2

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,925 reviews
Qantas Airways
7.5
Good
896 reviews

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Crew

8.2

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Air Canada
7.1
Good
9,992 reviews
Qantas Airways
7.5
Good
896 reviews

Comfort

7.4

Entertainment

7.2

Overall

7.5

Boarding

7.7

Crew

8.2

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Related info for your journey

Find useful and relevant information for your journey from Portland to Melbourne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Melbourne?

    For a flight from Portland to Melbourne, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 0 outbound flights to Melbourne per day. 3 airlines have flights to Melbourne from Portland on a regular basis.

  • How long is the flight from Portland to Melbourne?

    United Airlines can get you from Portland to Melbourne in just under 19h 40m. Your travel time can differ by up to . There are 8111 mi between Portland and Melbourne.

  • What are the cheapest airlines flying from Portland to Melbourne round-trip?

    Currently priced at $928, Air Canada will fly you from Portland to Melbourne and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Qantas Airways - these airlines can fly you to your destination from $977 and $1,173, respectively. Users have found that Air Canada is 32% cheaper than the other options available to this destination.

  • Can I find deals for flights from Portland to Melbourne that include hotel bookings?

    Yes. In addition to deals on Portland to Melbourne flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Melbourne?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Melbourne.

  • Can I find deals for business class flights from Portland to Melbourne?

    Yes. Cheapflights offers flight deals from Portland to Melbourne by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Melbourne?

    Currently, March is the cheapest month in which you can book a flight from Portland to Melbourne (average of $1,071). Flying from Portland to Melbourne in December is currently the most expensive (average of $1,774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Melbourne

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Melbourne flights
Portland to Avalon flights

Top 3 airlines flying from Portland to Melbourne

Discover the top 3 airlines that operate flights from Portland to Melbourne. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$928Average$1,279FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$977Average$1,300FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,173Average$1,493FlexibilityNo cancel feeOn-time74%

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