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$605+ Cheap flights from Portland (PDX) to Melbourne (MEL)

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 (MEL). 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 September 17, 2025.

Round-trip from

$976
(United Airlines)

One-way from

$605
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$1,250
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 ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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 9/181:01 pmPDX - MEL
2 stops26h 14mUnited Airlines
Thu 10/210:55 amMEL - PDX
1 stop24h 38mUnited Airlines
Deal found 9/16$974
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/237:35 pmPDX - MEL
1 stop19h 40mUnited Airlines
Fri 10/3112:00 pmMEL - PDX
1 stop20h 46mUnited Airlines
Deal found 9/16$976
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:33 pmPDX - MEL
2 stops27h 22mMultiple Airlines
Wed 2/410:35 amMEL - PDX
2 stops24h 53mMultiple Airlines
Deal found 9/15$1,119
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 11/56:00 amPDX - MEL
1 stop33h 00mUnited Airlines
Fri 11/141:00 pmMEL - PDX
1 stop24h 36mUnited Airlines
Deal found 9/16$1,123
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:00 pmPDX - MEL
2 stops26h 40mMultiple Airlines
Fri 11/147:10 amMEL - PDX
2 stops26h 35mMultiple Airlines
Deal found 9/16$1,127
This Justfly.com deal was found by Cheapflights users on 9/14. 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 stops36h 55mQantas Airways
Wed 11/1912:00 pmMEL - PDX
1 stop27h 50mQantas Airways
Deal found 9/14$1,139
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 11/43:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Fri 11/141:00 pmMEL - PDX
1 stop20h 46mUnited Airlines
Deal found 9/16$1,191

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 September 17, 2025.
Use the filters below to find and compare flights from Portland to Melbourne Airport that are best for you.

Fly from

Portland

Fly to

Melbourne

Route

Depart

Return

Price

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 10/31

6:00 am-8:30 am

2 stops32h 30m

Melbourne

Fri 11/7

1:00 pm-6:36 pm

1 stop24h 36m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 10/23

7:35 pm-9:15 am

1 stop19h 40m

Melbourne

Fri 10/31

12:00 pm-2:46 pm

1 stop20h 46m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 11/5

7:10 pm-10:00 am

2 stops43h 50m

Melbourne

Fri 11/14

1:00 pm-2:46 pm

1 stop20h 46m

$981

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 11/18

12:33 pm-10:55 am

2 stops27h 22m

Melbourne

Wed 2/4

12:10 pm-4:28 pm

2 stops23h 18m

$1,119

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 11/5

2:50 pm-10:55 am

2 stops25h 05m

Melbourne

Wed 11/19

12:10 pm-4:50 pm

2 stops23h 40m

$1,119

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 11/4

7:00 pm-4:40 pm

2 stops26h 40m

Melbourne

Fri 11/14

7:10 am-2:45 pm

2 stops26h 35m

$1,127

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 11/5

7:40 am-3:35 pm

2 stops36h 55m

Melbourne

Wed 11/19

12:00 pm-8:50 pm

1 stop27h 50m

$1,139

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 11/3

5:41 pm-9:20 pm

3 stops56h 39m

$605

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 11/3

10:30 am-9:30 am

1 stop28h 00m

$698

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 10/14

2:45 pm-7:20 pm

2 stops34h 35m

$3,767

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 11 results
1
2

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 Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Melbourne. Price data was last updated on September 12, 2025.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Melbourne Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Portland to Melbourne Airport (average of $1,071). Flying from Portland to Melbourne Airport 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 September 17, 2025.

One of the essential ways to save on airfare from Portland to Melbourne Airport 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 Airport?

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 Airport 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 September 17, 2025.
Read reviews from past customers who have flown Qantas Airways, United Airlines, and Air Canada from Portland to Melbourne Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
907 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me
Qantas Airways
7.5
Good
907 reviews
Qantas Airways
7.5
Good
907 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me
United Airlines
7.4
Good
8,926 reviews
Qantas Airways
7.5
Good
907 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me
Air Canada
7.1
Good
10,000 reviews
Qantas Airways
7.5
Good
907 reviews

Boarding

7.7

Comfort

7.5

Crew

8.2

Entertainment

7.2

Food

7.0

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me

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?

    Portland (PDX), located 6.0 mi from the city center, is the airport you fly out of when you book flights from Portland to Melbourne. 3 airlines have flights from Portland to Melbourne on a regular basis. Booking flights from Portland to Melbourne should not be difficult; the airport handles an average of 0 outbound flights to Melbourne per day.

  • How long is the flight from Portland to Melbourne Airport?

    Airlines like United Airlines fly from Portland to Melbourne Airport in about 32h 30m. The time it takes to get you to your destination can typically vary by up to . Portland and Melbourne Airport are separated by a distance of 8111 mi.

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

    Flying on Air Canada is currently your cheapest option to Melbourne Airport, with prices starting at $928. Additional round-trip tickets that might be worth considering are offered by United Airlines and Qantas Airways, with the lowest prices starting at $957 and $1,237, respectively. You may be able to fly from Portland to Melbourne Airport for 31% less than the average price by searching for these airlines.

  • 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 Airport?

    Currently, March is the cheapest month in which you can book a flight from Portland to Melbourne Airport (average of $1,071). Flying from Portland to Melbourne Airport 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

Traveling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Geelong
Tullamarine
Doncaster
Phillip Island

Browse thousands of different options on Cheapflights for your next trip

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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 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$928Average$1,279FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$957Average$1,284FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,237Average$1,570FlexibilityNo cancel feeOn-time74%

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