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Cheap flights from Portland to Melbourne Airport from $685

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — MEL
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portland to Melbourne

Enter your travel dates to find the best prices.

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 10 March 2026.

Fri 8/519:45
PDX
-
MEL
2 stops22h 40m
Multiple Airlines
Thu 21/506:00
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 6/3$1,176
Sat 25/419:05
PDX
-
MEL
2 stops23h 00m
Multiple Airlines
Fri 8/506:00
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 8/3$1,180
Thu 23/419:05
PDX
-
MEL
2 stops23h 15m
Multiple Airlines
Thu 30/406:00
MEL
-
PDX
2 stops20h 10m
Multiple Airlines
Deal found 9/3$1,182
Wed 15/419:05
PDX
-
MEL
2 stops23h 15m
Multiple Airlines
Wed 29/406:00
MEL
-
PDX
2 stops20h 10m
Multiple Airlines
Deal found 8/3$1,183
Mon 20/419:05
PDX
-
MEL
2 stops23h 15m
Multiple Airlines
Mon 27/420:40
MEL
-
PDX
2 stops29h 30m
Multiple Airlines
Deal found 6/3$1,185
Tue 4/819:45
PDX
-
MEL
2 stops22h 35m
Air Canada
Tue 18/806:00
MEL
-
PDX
2 stops20h 31m
Air Canada
Deal found 7/3$1,189
Wed 10/619:45
PDX
-
MEL
2 stops22h 40m
Multiple Airlines
Tue 16/606:00
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 10/3$1,190
Thu 29/1015:15
PDX
-
MEL
2 stops28h 00m
Multiple Airlines
Fri 13/1107:25
MEL
-
PDX
2 stops21h 00m
Multiple Airlines
Deal found 5/3$1,296
Sun 6/919:45
PDX
-
MEL
2 stops23h 35m
Multiple Airlines
Sat 19/920:50
MEL
-
PDX
2 stops29h 41m
Multiple Airlines
Deal found 5/3$1,297
Sat 18/419:05
PDX
-
MEL
2 stops23h 15m
Multiple Airlines
Fri 1/506:00
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 7/3$1,343

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 (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 10 March 2026.

Round-trip from

$1,176

One-way from

$685

Popular in

October

Cheapest in

February

Average price

$1,586
Air Canada
  • Air Canada
  • 8/5-21/5
  • 4 total stops
  • 43h 10m total
  • Portland to Melbourne
Search Deals
Air Canada
  • Air Canada
  • 15/4
  • 2 total stops
  • 26h 50m total
  • Portland to Melbourne
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($326 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($100 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 10 March 2026.
Use the filters below to find and compare flights from Portland to Melbourne Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 4/8

17:35-10:00

2 stops23h 25m

Melbourne

Tue 18/8

09:45-13:36

1 stop20h 51m

$1,405

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 19/4

19:14-08:15

1 stop20h 01m

Melbourne

Sun 26/4

10:55-12:26

1 stop18h 31m

$1,432
Fastest return journey

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 13/5

19:45-08:15

1 stop19h 30m

Melbourne

Sun 17/5

10:55-12:35

1 stop18h 40m

$1,432

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 8/5

12:46-08:15

2 stops26h 29m

Melbourne

Thu 21/5

10:55-20:54

1 stop26h 59m

$1,438

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 22/8

14:30-06:45

1 stop23h 15m

Melbourne

Wed 26/8

09:45-20:31

1 stop27h 46m

$1,439

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 19/4

19:05-07:50

2 stops43h 45m

Melbourne

Sun 26/4

10:00-12:08

1 stop19h 08m

$1,449

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 22/8

10:35-08:15

2 stops28h 40m

Melbourne

Wed 26/8

09:30-18:11

3 stops25h 41m

$1,459
Cheapest one-way

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 15/4

15:15-11:05

2 stops26h 50m

$685

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 2/9

12:50-08:15

2 stops26h 25m

$747

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 15/4

07:05-19:05

3 stops43h 00m

$830

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 return 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

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

Currently, December is the cheapest month in which you can book a flight from Portland to Melbourne Airport (average of $1,167). Flying from Portland to Melbourne Airport in July is currently the most expensive (average of $1,801). 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.

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?

    Located just 9.7 km from the city centre, Portland is the airport most travellers will use when flying to Melbourne from Portland. Booking flights from Portland (PDX) to Melbourne should be relatively easy as there are 0 daily outbound flights to Melbourne from 0 different airlines.

  • How long is the flight from Portland to Melbourne Airport?

    A quick flight from Portland to Melbourne Airport can take about 20h 01m. Qantas Airways provides one of the quickest options available for as low as $1,432. There are 13053 km between Portland and Melbourne Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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 holiday 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, December is the cheapest month in which you can book a flight from Portland to Melbourne Airport (average of $1,167). Flying from Portland to Melbourne Airport in July is currently the most expensive (average of $1,801). 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

Travelling to a place near Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Dandenong
Geelong
Ballarat
Apollo Bay
St Kilda
Phillip Island
Tullamarine
Lorne
Shepparton
Sorrento
Torquay
Daylesford
Mornington
Brighton

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Cheapflights makes it easy to find Portland to Melbourne flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portland to Melbourne?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Melbourne from Portland.

Can Cheapflights find flights from Portland to Melbourne with no change fees?

Yes, we can. To see specific flights from Portland to Melbourne with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portland to Melbourne become cheaper?

Yes! Start tracking prices for Portland to Melbourne flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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