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$517+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Jan 24 — Jan 311
Sat 1/24
Sat 1/31
1 adult, Economy
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Cheap 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 December 25, 2025.

This United Airlines deal was found by Cheapflights users on 12/23. 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 12/257:45 pmPDX - MEL
1 stop19h 15mUnited Airlines
Thu 3/51:00 pmMEL - PDX
1 stop24h 47mUnited Airlines
Deal found 12/23$6,371
This oojo deal was found by Cheapflights users on 12/23. 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.
Thu 12/255:50 pmPDX - MEL
2 stops34h 10mCathay Pacific
Thu 3/58:10 amMEL - PDX
3 stops31h 24mCathay Pacific
Deal found 12/23$8,640
This China Airlines deal was found by Cheapflights users on 12/24. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:28 pmPDX - MEL
2 stops45h 37mMultiple Airlines
Thu 3/511:20 pmMEL - PDX
3 stops43h 20mMultiple Airlines
Deal found 12/24$9,845
This oojo deal was found by Cheapflights users on 12/23. 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.
Thu 12/256:20 amPDX - AVV
2 stops38h 30mQantas Airways
Thu 3/54:25 pmAVV - PDX
2 stops23h 28mQantas Airways
Deal found 12/23$13,862

Find 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 December 25, 2025.

Round-trip from

$939
(Air Canada)

One-way from

$517
(oojo)

Popular in

December

Cheapest in

November

Average price

$1,686
From Portland to Melbourne
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One-way flight from Portland to Melbourne
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 25, 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 - AVV

PDXAVV

Portland

Sat 2/7

9:50 am-3:50 pm

2 stops35h 00m

Melbourne Avalon

Sat 2/14

8:55 pm-9:15 am

2 stops31h 20m

$939

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

5:39 pm-9:30 am

1 stop20h 51m

Melbourne

Sat 3/7

12:00 pm-1:25 pm

1 stop20h 25m

$953

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 3/25

3:15 pm-12:35 pm

2 stops27h 20m

Melbourne

Wed 4/8

6:00 am-9:15 am

2 stops20h 15m

$955

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

11:48 am-9:30 am

2 stops26h 42m

Melbourne

Sat 3/7

4:05 pm-7:43 pm

1 stop22h 38m

$959

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 2/6

4:51 pm-10:05 am

2 stops22h 14m

Melbourne

Sat 2/14

12:00 pm-1:25 pm

1 stop20h 25m

$980

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 2/6

10:30 am-8:00 am

1 stop26h 30m

Melbourne

Fri 2/13

10:10 am-6:49 pm

1 stop27h 39m

$983

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:35 pm-8:00 am

2 stops41h 25m

Melbourne

Sun 6/14

10:00 am-11:41 pm

2 stops30h 41m

$987

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Wed 3/25

5:49 pm-11:15 pm

2 stops35h 26m

Melbourne Avalon

Wed 4/8

2:55 pm-8:48 pm

2 stops22h 53m

$1,784

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 1/13

3:22 pm-3:50 pm

2 stops29h 28m

Melbourne Avalon

Tue 1/20

6:00 am-8:48 pm

2 stops33h 48m

$2,107

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Tue 1/13

3:22 pm-3:50 pm

2 stops29h 28m

Melbourne Avalon

Tue 1/20

8:10 am-8:48 pm

2 stops31h 38m

$2,515

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/23

Showing 1-10 of 27 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

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

Currently, December is the cheapest month in which you can book a flight from Portland to Melbourne (average of $909). Flying from Portland to Melbourne in June is currently the most expensive (average of $1,281). 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 December 25, 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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 39% on airfare.

How much does it cost to fly round-trip from Portland to Melbourne?

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 December 25, 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
953 reviews

Comfort

7.5

Entertainment

7.2

Overall

7.5

Crew

8.2

Food

7.0

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
953 reviews
Qantas Airways
7.5
Good
953 reviews

Comfort

7.5

Entertainment

7.2

Overall

7.5

Crew

8.2

Food

7.0

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
United Airlines
7.4
Good
9,115 reviews
Qantas Airways
7.5
Good
953 reviews

Comfort

7.5

Entertainment

7.2

Overall

7.5

Crew

8.2

Food

7.0

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Air Canada
7.1
Good
10,562 reviews
Qantas Airways
7.5
Good
953 reviews

Comfort

7.5

Entertainment

7.2

Overall

7.5

Crew

8.2

Food

7.0

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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?

    Air Canada, American Airlines, and Qantas Airways can get you from Portland to Melbourne in just under 26h 42m. Your travel time can differ by up to 2h 46m. 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 $757, Qantas Airways will fly you from Portland to Melbourne and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from $914 and $947, respectively. Users have found that Qantas Airways is 41% 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, December is the cheapest month in which you can book a flight from Portland to Melbourne (average of $909). Flying from Portland to Melbourne in June is currently the most expensive (average of $1,281). 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 December 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$757Average$1,252FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$914Average$1,111FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$947Average$1,243FlexibilityNo cancel feeOn-time69%

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