$519 Cheap Flights from Portland (PDX) to Melbourne (MEL)

View $519 flight on Fri, Feb 6, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Melbourne Airport (MEL)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Portland to Melbourne (PDX-MEL)

Prices were available within the past 7 days and start at $519 for one-way flights and $942 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Jan 28 - Mon, Feb 2
PDX
Portland
MEL
Melbourne
$942 Roundtrip, found 2 days ago
$942
Roundtrip
found 2 days ago
Select Air Canada flight, departing Wed, Jan 28 from Portland to Melbourne, returning Mon, Feb 2, priced at $942 found 2 days ago
Air Canada
Fri, Jan 30 - Fri, Feb 6
PDX
Portland
MEL
Melbourne
$943 Roundtrip, found 3 days ago
$943
Roundtrip
found 3 days ago
Select Air Canada flight, departing Fri, Jan 30 from Portland to Melbourne, returning Fri, Feb 6, priced at $943 found 3 days ago
Air Canada
Fri, Jan 30 - Sun, Feb 8
PDX
Portland
MEL
Melbourne
$944 Roundtrip, found 1 day ago
$944
Roundtrip
found 1 day ago
Select Air Canada flight, departing Fri, Jan 30 from Portland to Melbourne, returning Sun, Feb 8, priced at $944 found 1 day ago
Air Canada
Fri, Mar 27 - Fri, Apr 10
PDX
Portland
MEL
Melbourne
$946 Roundtrip, found 5 hours ago
$946
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Fri, Mar 27 from Portland to Melbourne, returning Fri, Apr 10, priced at $946 found 5 hours ago
Air Canada
Thu, Feb 19 - Fri, Feb 27
PDX
Portland
MEL
Melbourne
$948 Roundtrip, found 1 day ago
$948
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Feb 19 from Portland to Melbourne, returning Fri, Feb 27, priced at $948 found 1 day ago
Air Canada
Thu, Mar 19 - Thu, Mar 26
PDX
Portland
MEL
Melbourne
$951 Roundtrip, found 6 days ago
$951
Roundtrip
found 6 days ago
Select Air Canada flight, departing Thu, Mar 19 from Portland to Melbourne, returning Thu, Mar 26, priced at $951 found 6 days ago
Qantas Airways
Thu, Mar 5 - Sat, Mar 21
PDX
Portland
MEL
Melbourne
$1,003 Roundtrip, just found
$1,003
Roundtrip
just found
Select Qantas Airways flight, departing Thu, Mar 5 from Portland to Melbourne, returning Sat, Mar 21, priced at $1,003 just found
United
Mon, Mar 16 - Mon, Mar 23
PDX
Portland
MEL
Melbourne
$1,014 Roundtrip, found 2 days ago
$1,014
Roundtrip
found 2 days ago
Select United flight, departing Mon, Mar 16 from Portland to Melbourne, returning Mon, Mar 23, priced at $1,014 found 2 days ago
Delta
Fri, Feb 6 - Fri, Feb 20
PDX
Portland
MEL
Melbourne
$1,022 Roundtrip, found 2 hours ago
$1,022
Roundtrip
found 2 hours ago
Select Delta flight, departing Fri, Feb 6 from Portland to Melbourne, returning Fri, Feb 20, priced at $1,022 found 2 hours ago
Hawaiian Airlines
Tue, Jan 13 - Fri, Jan 23
PDX
Portland
MEL
Melbourne
$1,208 Roundtrip, found 5 days ago
$1,208
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from Portland to Melbourne, returning Fri, Jan 23, priced at $1,208 found 5 days ago

Find the cheapest month to fly from Portland (PDX) to Melbourne (MEL)

September is typically the cheapest month to fly

From $920 - $1,385 per traveler.

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL) cost?
Grab a cheap one-way flight from $519 or cheap return flight from $942 from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL)?
January is the least expensive month to fly from PDX to MEL. Traveling outside of peak seasons is often the key to finding better deals on flights.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from PDX to MEL. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL)?
There are no daily direct flights departing from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from PDX to MEL?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL)?
Book a flight from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL) last-minute?
Booking your plane ticket from PDX to MEL shortly before your trip is generally more expensive. However, if there's some wiggle room with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book a PDX to MEL flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to MEL flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the stress out of travel planning. Just secure your flights and select from our extensive range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Tullamarine Airport (MEL)?
If you booked your PDX to MEL flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Portland Intl.
Destination airport
Tullamarine
Airlines serving
Air Canada, Air New Zealand, Air Tahiti Nui, Alaska Airlines, American Airlines, Asiana Airlines, Cathay Pacific, China Eastern Airlines, Delta, Hawaiian Airlines, Japan Airlines, Qantas Airways, Qatar Airways, United
Roundtrip price
$941
Distance
8116 mi

Book with confidence

Portland to Melbourne Flights

The cheapest times to fly from Portland to Melbourne

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Melbourne are during the month of January. You can find some of the cheapest flights from Portland to Melbourne with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Melbourne

Sunday is one of the best days to book for cheap flights from Portland to Melbourne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Melbourne

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Melbourne in 2025. You can also book with separate airlines for your outbound and return journeys, from $519 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Melbourne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Melbourne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Portland to Melbourne Flights

Explore a world of travel with Expedia

*Available to One Key members.