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$605+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 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 16, 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.
Fri 10/316:00 amPDX - MEL
2 stops32h 30mUnited Airlines
Fri 11/71:00 pmMEL - PDX
1 stop24h 36mUnited Airlines
Deal found 9/16$976
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 11/57:10 pmPDX - MEL
2 stops43h 50mUnited Airlines
Fri 11/1411:30 amMEL - PDX
2 stops28h 56mUnited Airlines
Deal found 9/16$981
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/293:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Thu 1/221:00 pmMEL - PDX
1 stop24h 48mUnited Airlines
Deal found 9/13$1,116
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 9/13. 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 12/299:00 amPDX - MEL
2 stops29h 30mUnited Airlines
Sat 1/2411:30 amMEL - PDX
2 stops25h 40mUnited Airlines
Deal found 9/13$1,120
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 Jetabroad 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 Jetabroad 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 stops21h 35mMultiple Airlines
Deal found 9/14$1,135
This Justfly.com deal was found by Cheapflights users on 9/13. 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 stop20h 50mQantas Airways
Deal found 9/13$1,136
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/29:30 pmPDX - MEL
2 stops42h 25mMultiple Airlines
Sun 11/166:50 pmMEL - PDX
2 stops41h 00mMultiple Airlines
Deal found 9/14$1,181
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:30 pmPDX - AVV
2 stops24h 15mMultiple Airlines
Fri 11/1410:20 amAVV - PDX
2 stops25h 52mMultiple Airlines
Deal found 9/16$1,357
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:55 pmPDX - AVV
2 stops34h 20mMultiple Airlines
Fri 11/1410:20 amAVV - PDX
2 stops25h 52mMultiple Airlines
Deal found 9/16$1,370
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:35 pmPDX - AVV
2 stops27h 35mMultiple Airlines
Thu 10/210:35 amAVV - PDX
2 stops25h 35mMultiple Airlines
Deal found 9/14$1,381

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 16, 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

Thu 3/5

5:45 am-9:30 am

2 stops32h 45m

Melbourne

Sat 3/14

10:30 am-12:19 am

2 stops31h 49m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 3/5

7:30 pm-10:00 am

1 stop19h 30m

Melbourne

Fri 3/13

12:00 pm-8:05 pm

1 stop26h 05m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/6

7:30 pm-10:00 am

1 stop19h 30m

Melbourne

Sat 3/14

10:30 am-12:19 am

2 stops31h 49m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/13

3:41 pm-9:00 am

1 stop23h 19m

Melbourne

Thu 3/26

12:00 pm-2:42 pm

1 stop20h 42m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 1/17

7:51 pm-10:00 am

1 stop19h 09m

Melbourne

Sat 1/24

1:00 pm-2:46 pm

1 stop20h 46m

$976

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 10/31

10:52 am-8:30 am

2 stops27h 38m

Melbourne

Fri 11/7

1:00 pm-10:56 pm

2 stops28h 56m

$981

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/6

10:25 am-10:00 am

1 stop28h 35m

Melbourne

Mon 3/16

10:30 am-12:19 am

2 stops31h 49m

$996

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:49 pm-10:00 am

1 stop19h 11m

Melbourne

Sat 3/7

11:30 am-12:19 am

2 stops31h 49m

$996

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 11/4

2:30 pm-9:45 am

2 stops24h 15m

Melbourne Avalon

Fri 11/14

10:20 am-5:12 pm

2 stops25h 52m

$1,357

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 3/1

10:35 am-3:50 pm

2 stops34h 15m

Melbourne Avalon

Wed 3/11

4:25 pm-8:35 pm

2 stops22h 10m

$1,792

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 34 results
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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 September 12, 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 September 16, 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 September 16, 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
907 reviews

Comfort

7.5

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.2

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

Comfort

7.5

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.2

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
8,924 reviews
Qantas Airways
7.5
Good
907 reviews

Comfort

7.5

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.2

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

Comfort

7.5

Food

7.0

Crew

8.2

Boarding

7.7

Overall

7.5

Entertainment

7.2

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?

    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 and Qantas Airways can get you from Portland to Melbourne in just under 32h 45m. Your travel time can differ by up to 1h 30m. There are 8111 mi between Portland and Melbourne. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $957 and $1,237, respectively. Users have found that Air Canada is 31% 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

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 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 September 16, 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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