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$514+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Nov 20 — Nov 271
Thu 11/20
Thu 11/27
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Melbourne are usually found in November or February, booked 59 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 October 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 amPDX - MEL
1 stop29h 45mQantas Airways
Sat 11/112:00 pmMEL - PDX
1 stop26h 50mQantas Airways
Deal found 10/20$932
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:44 amPDX - MEL
1 stop27h 16mAmerican Airlines
Thu 11/612:00 pmMEL - PDX
2 stops26h 10mAmerican Airlines
Deal found 10/21$943
This Qantas Airways deal was found by Cheapflights users on 10/21. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:52 pmPDX - MEL
1 stop21h 53mQantas Airways
Thu 11/612:00 pmMEL - PDX
1 stop23h 50mQantas Airways
Deal found 10/21$951
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/303:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Wed 1/141:00 pmMEL - PDX
1 stop18h 33mUnited Airlines
Deal found 10/19$1,014
This United Airlines deal was found by Cheapflights users on 10/20. 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 12/410:10 amPDX - MEL
1 stop28h 50mUnited Airlines
Thu 12/111:00 pmMEL - PDX
1 stop30h 37mUnited Airlines
Deal found 10/20$1,020
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:45 amPDX - MEL
1 stop26h 15mDelta
Wed 12/1010:10 amMEL - PDX
1 stop27h 49mDelta
Deal found 10/19$1,021
This Qantas Airways deal was found by Cheapflights users on 10/20. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:26 pmPDX - MEL
1 stop22h 04mQantas Airways
Sat 1/1712:00 pmMEL - PDX
1 stop23h 49mQantas Airways
Deal found 10/20$1,022
This United Airlines deal was found by Cheapflights users on 10/20. 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
Wed 1/141:00 pmMEL - PDX
1 stop24h 48mUnited Airlines
Deal found 10/20$1,035
This Cheapflightsfares deal was found by Cheapflights users on 10/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:00 amPDX - MEL
2 stops34h 25mQantas Airways
Sat 11/812:00 pmMEL - PDX
1 stop24h 36mQantas Airways
Deal found 10/20$1,064
This Expedia deal was found by Cheapflights users on 10/20. 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 12/305:48 pmPDX - AVV
2 stops25h 22mMultiple Airlines
Wed 1/148:55 pmAVV - PDX
2 stops35h 46mMultiple Airlines
Deal found 10/20$1,523
This Expedia deal was found by Cheapflights users on 10/20. 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 10/215:55 pmPDX - AVV
2 stops21h 50mMultiple Airlines
Tue 10/283:00 pmAVV - PDX
2 stops23h 50mMultiple Airlines
Deal found 10/20$1,857
This KAYAK deal was found by Cheapflights users on 10/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:00 amPDX - AVV
2 stops37h 10mMultiple Airlines
Mon 11/248:55 pmAVV - PDX
2 stops39h 17mMultiple Airlines
Deal found 10/19$2,198

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 October 21, 2025.

Round-trip from

$947
(Expedia)

One-way from

$514
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$1,447
From Portland to Melbourne
Search Deals
One-way flight from Portland to Melbourne
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 21, 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 3/18

7:00 pm-1:15 pm

2 stops24h 15m

Melbourne

Tue 4/28

6:00 am-9:15 am

2 stops20h 15m

$947

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 1/1

5:48 pm-9:30 am

1 stop20h 42m

Melbourne

Fri 1/16

12:00 pm-4:49 pm

1 stop23h 49m

$1,002

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 12/30

7:45 pm-10:00 am

1 stop19h 15m

Melbourne

Tue 1/13

1:00 pm-6:41 pm

1 stop24h 41m

$1,014

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 12/28

3:54 pm-10:00 am

1 stop23h 06m

Melbourne

Sat 1/17

1:00 pm-12:33 pm

1 stop18h 33m

$1,014

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/13

1:35 pm-9:00 am

1 stop25h 25m

Melbourne

Thu 3/26

12:00 pm-12:37 pm

1 stop18h 37m

$1,014

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 12/30

3:54 pm-10:00 am

1 stop23h 06m

Melbourne

Sat 1/17

1:00 pm-12:33 pm

1 stop18h 33m

$1,014

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 12/30

3:54 pm-10:00 am

1 stop23h 06m

Melbourne

Wed 1/14

1:00 pm-12:33 pm

1 stop18h 33m

$1,014

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 1/4

5:00 am-10:00 am

2 stops34h 00m

Melbourne

Sun 1/18

1:00 pm-12:34 pm

1 stop18h 34m

$1,018

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 3/18

1:35 pm-9:00 am

1 stop25h 25m

Melbourne

Tue 4/28

10:55 am-9:40 am

2 stops39h 45m

$1,018

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 12/28

5:00 am-10:00 am

2 stops34h 00m

Melbourne

Wed 1/14

1:00 pm-12:33 pm

1 stop18h 33m

$1,018

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 31 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 October 17, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Melbourne, you should look to book at least 58 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, December is the cheapest month in which you can book a flight from Portland to Melbourne (average of $920). Flying from Portland to Melbourne in June is currently the most expensive (average of $1,288). 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 October 21, 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 38% 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 Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 21, 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
922 reviews

Crew

8.2

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Entertainment

7.2

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
922 reviews
Qantas Airways
7.5
Good
922 reviews

Crew

8.2

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Entertainment

7.2

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
8,988 reviews
Qantas Airways
7.5
Good
922 reviews

Crew

8.2

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Entertainment

7.2

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
10,341 reviews
Qantas Airways
7.5
Good
922 reviews

Crew

8.2

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Entertainment

7.2

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?

    Qantas Airways and United Airlines can get you from Portland to Melbourne in just under 19h 15m. Your travel time can differ by up to 1h 27m. 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 $997, respectively. Users have found that Air Canada is 30% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Portland to Melbourne one-way?

    $514 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Qantas Airways and United Airlines, with prices starting from $670 and $712, respectively.

  • 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 $920). Flying from Portland to Melbourne in June is currently the most expensive (average of $1,288). 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 October 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$928Average$1,405FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$957Average$1,257FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$997Average$1,570FlexibilityNo cancel feeOn-time74%

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