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$575+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Melbourne are usually found in April or November, booked 59 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 October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$944
(Air Canada)

One-way from

$575
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$1,460
Provider with most accurate pricing for Portland-Melbourne flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Melbourne flights.
Search Deals
From Portland to Melbourne
Search Deals
One-way flight from Portland to Melbourne
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 2, 2025.

This United Airlines deal was found by Cheapflights users on 9/30. 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 11/143:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Fri 11/211:00 pmMEL - PDX
1 stop26h 38mUnited Airlines
Deal found 9/30$974
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/221:00 pmMEL - PDX
1 stop24h 36mUnited Airlines
Deal found 10/1$975
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/313:54 pmPDX - MEL
1 stop23h 06mUnited Airlines
Fri 11/71:00 pmMEL - PDX
1 stop26h 38mUnited Airlines
Deal found 10/2$976
This United Airlines deal was found by Cheapflights users on 10/2. 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 10/3012:55 pmPDX - MEL
2 stops26h 05mUnited Airlines
Thu 11/61:00 pmMEL - PDX
1 stop24h 36mUnited Airlines
Deal found 10/2$980
This United Airlines deal was found by Cheapflights users on 10/2. 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 12/61:00 pmPDX - MEL
1 stop26h 00mUnited Airlines
Sun 12/211:00 pmMEL - PDX
1 stop20h 46mUnited Airlines
Deal found 10/2$996
This United Airlines deal was found by Cheapflights users on 10/2. 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 12/287:45 pmPDX - MEL
1 stop19h 15mUnited Airlines
Fri 1/161:00 pmMEL - PDX
2 stops27h 12mUnited Airlines
Deal found 10/2$1,000
This United Airlines deal was found by Cheapflights users on 10/2. 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 12/58:30 amPDX - MEL
2 stops30h 00mUnited Airlines
Sun 12/211:00 pmMEL - PDX
2 stops43h 35mUnited Airlines
Deal found 10/2$1,015
This United Airlines deal was found by Cheapflights users on 10/2. 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 12/76:00 amPDX - MEL
2 stops32h 30mUnited Airlines
Sun 12/211:00 pmMEL - PDX
1 stop24h 48mUnited Airlines
Deal found 10/2$1,016
This United Airlines deal was found by Cheapflights users on 10/2. 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 12/292:45 pmPDX - MEL
2 stops24h 15mUnited Airlines
Mon 1/1211:30 amMEL - PDX
2 stops28h 42mUnited Airlines
Deal found 10/2$1,020
This Delta deal was found by Cheapflights users on 10/2. 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.
Fri 12/512:45 pmPDX - MEL
1 stop24h 15mDelta
Sun 12/2110:10 amMEL - PDX
1 stop21h 26mDelta
Deal found 10/2$1,022
This Delta deal was found by Cheapflights users on 10/2. 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.
Sun 12/77:09 pmPDX - MEL
2 stops41h 51mDelta
Sun 12/2110:10 amMEL - PDX
2 stops27h 40mDelta
Deal found 10/2$1,027

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 2, 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

Sun 3/1

7:00 pm-2:15 pm

2 stops24h 15m

Melbourne

Wed 3/11

6:05 am-9:15 am

2 stops21h 10m

$973

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 11/14

3:54 pm-10:00 am

1 stop23h 06m

Melbourne

Fri 11/21

1:00 pm-8:38 pm

1 stop26h 38m

$974

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 3/13

1:35 pm-9:00 am

1 stop25h 25m

Melbourne

Thu 3/26

10:30 am-12:19 am

2 stops31h 49m

$974

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 10/30

8:30 am-9:00 am

2 stops30h 30m

Melbourne

Thu 11/6

1:00 pm-10:56 pm

2 stops28h 56m

$980

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 10/30

5:00 am-9:00 am

2 stops34h 00m

Melbourne

Fri 11/7

11:30 am-9:26 pm

2 stops28h 56m

$980

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

1:32 pm-10:00 am

1 stop25h 28m

Melbourne

Sat 3/7

11:30 am-12:19 am

2 stops31h 49m

$994

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 12/5

6:00 am-9:30 am

2 stops32h 30m

Melbourne

Sun 12/21

1:00 pm-6:48 pm

1 stop24h 48m

$996

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 12/6

1:00 pm-10:00 am

1 stop26h 00m

Melbourne

Sun 12/21

1:00 pm-2:46 pm

1 stop20h 46m

$996

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 12/5

6:00 am-9:30 am

2 stops32h 30m

Melbourne

Mon 12/22

11:30 am-9:07 pm

2 stops28h 37m

$1,000

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 2/6

3:50 pm-10:00 am

1 stop23h 10m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 19 results
1
2

Compare providers for flights from Portland to Melbourne

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Melbourne in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Melbourne Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Melbourne Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Melbourne Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Melbourne Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Melbourne Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 26, 2025.

Booking 58 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 October 2, 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 October 2, 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
910 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

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
910 reviews
Qantas Airways
7.5
Good
910 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

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
8,933 reviews
Qantas Airways
7.5
Good
910 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

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
10,224 reviews
Qantas Airways
7.5
Good
910 reviews

Boarding

7.7

Entertainment

7.2

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

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?

    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 23h 06m. 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 $997, respectively. You may be able to fly from Portland to Melbourne Airport for 32% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $575. Qantas Airways flights start at $678 while deals on American Airlines start at $737 one-way.

  • 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 October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$928Average$1,279FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$957Average$1,276FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$997Average$1,570FlexibilityNo cancel feeOn-time74%

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