$1,963+ Flights from Portland to Australia - Compare & Save Big | Cheapflights

Find flight deals from Portland to Australia

Cheapest flights from Portland to Australia
Explore the most affordable flight options available from Portland to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Wed 13/821:50PDX - SYD

2 stops47h 50mMultiple Airlines

Wed 20/816:20SYD - PDX

1 stop23h 20mMultiple Airlines

Deal found 29/4$1,444

Thu 29/513:35PDX - SYD

1 stop24h 20mUnited Airlines

Thu 5/610:20SYD - PDX

1 stop25h 15mUnited Airlines

Deal found 29/4$1,510

Sun 17/813:37PDX - SYD

1 stop24h 18mVirgin Australia

Sat 30/810:20SYD - PDX

1 stop25h 12mVirgin Australia

Deal found 29/4$1,613

Wed 5/1110:10PDX - BNE

1 stop28h 30mAir Canada

Wed 19/1110:45BNE - PDX

1 stop16h 49mAir Canada

Deal found 30/4$1,668

Tue 27/517:33PDX - SYD

1 stop33h 12mHawaiian Airlines

Sat 7/621:40SYD - PDX

1 stop17h 15mHawaiian Airlines

Deal found 29/4$1,758

Sun 30/1115:25PDX - SYD

2 stops22h 20mAir New Zealand

Tue 9/1213:55SYD - PDX

2 stops23h 29mAir New Zealand

Deal found 28/4$1,780

Tue 2/919:40PDX - SYD

1 stop18h 40mAir Canada

Tue 23/909:20SYD - PDX

1 stop22h 26mAir Canada

Deal found 29/4$1,788

Wed 7/508:05PDX - SYD

1 stop18h 40mAlaska Airlines

Sun 18/521:40SYD - PDX

2 stops25h 40mAlaska Airlines

Deal found 28/4$1,810

Wed 5/1117:20PDX - BNE

2 stops20h 25mDelta

Wed 19/1110:45BNE - PDX

1 stop26h 43mDelta

Deal found 30/4$1,812

Thu 6/1112:40PDX - BNE

2 stops24h 50mUnited Airlines

Wed 19/1111:40BNE - PDX

2 stops23h 58mUnited Airlines

Deal found 30/4$1,824

Wed 15/1019:40PDX - MEL

2 stops22h 30mMultiple Airlines

Sun 26/1007:10MEL - PDX

2 stops29h 14mMultiple Airlines

Deal found 30/4$1,841

Fri 7/1110:10PDX - MEL

2 stops29h 40mAir New Zealand

Mon 17/1108:35MEL - PDX

2 stops25h 07mAir New Zealand

Deal found 30/4$1,901

Best flights from Portland to Australia
Discover carefully curated flight deals from Portland to Australia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 April 2025.

Wed 13/821:50PDX - SYD

2 stops47h 50mMultiple Airlines

Wed 20/816:20SYD - PDX

1 stop23h 20mMultiple Airlines

Deal found 29/4$1,444

Thu 29/513:35PDX - SYD

1 stop24h 20mUnited Airlines

Thu 5/610:20SYD - PDX

1 stop25h 15mUnited Airlines

Deal found 29/4$1,510

Sun 17/813:37PDX - SYD

1 stop24h 18mVirgin Australia

Sat 30/810:20SYD - PDX

1 stop25h 12mVirgin Australia

Deal found 29/4$1,613

Tue 27/517:33PDX - SYD

1 stop33h 12mHawaiian Airlines

Sat 7/621:40SYD - PDX

1 stop17h 15mHawaiian Airlines

Deal found 29/4$1,758

Tue 2/919:40PDX - SYD

1 stop18h 40mAir Canada

Tue 23/909:20SYD - PDX

1 stop22h 26mAir Canada

Deal found 29/4$1,788

Fri 8/815:40PDX - SYD

2 stops24h 05mAir New Zealand

Mon 25/808:45SYD - PDX

2 stops26h 47mAir New Zealand

Deal found 29/4$1,801

Sat 10/508:05PDX - SYD

1 stop18h 40mAlaska Airlines

Tue 20/521:40SYD - PDX

2 stops25h 40mAlaska Airlines

Deal found 28/4$1,810

Wed 13/814:56PDX - SYD

1 stop23h 09mAmerican Airlines

Wed 20/809:10SYD - PDX

1 stop22h 10mAmerican Airlines

Deal found 29/4$1,941

Wed 16/710:15PDX - SYD

1 stop27h 20mDelta

Sun 27/709:25SYD - PDX

1 stop23h 31mDelta

Deal found 30/4$2,018

Fri 1/807:45PDX - BNE

1 stop28h 40mQantas Airways

Mon 18/820:05BNE - PDX

1 stop18h 09mQantas Airways

Deal found 30/4$2,040

Fri 29/814:56PDX - BNE

2 stops26h 39mFiji Airways

Fri 12/911:35BNE - PDX

2 stops26h 55mFiji Airways

Deal found 30/4$2,105

Tue 14/1007:30PDX - BNE

2 stops34h 35mCathay Pacific

Mon 3/1100:10BNE - PDX

2 stops38h 25mCathay Pacific

Deal found 30/4$2,152

Last-minute flights from Portland to Australia
Discover last-minute flight deals from Portland to Australia. Data last updated 30 April 2025 and is based on user searches.

Mon 5/512:09PDX - BNE

1 stop24h 16mMultiple Airlines

Thu 29/507:00BNE - PDX

2 stops40h 20mMultiple Airlines

Deal found 30/4$1,915

Mon 5/512:09PDX - SYD

1 stop25h 56mQantas Airways

Mon 19/517:45SYD - PDX

1 stop23h 14mQantas Airways

Deal found 28/4$2,413

Mon 5/510:21PDX - BNE

1 stop27h 09mUnited Airlines

Tue 3/610:30BNE - PDX

1 stop18h 52mUnited Airlines

Deal found 30/4$2,420

Mon 5/512:55PDX - SYD

2 stops25h 05mUnited Airlines

Tue 20/509:30SYD - PDX

2 stops24h 58mUnited Airlines

Deal found 28/4$2,441

Tue 6/506:00PDX - BNE

1 stop30h 25mAmerican Airlines

Wed 4/620:05BNE - PDX

1 stop20h 54mAmerican Airlines

Deal found 30/4$2,510

Wed 7/508:05PDX - SYD

1 stop18h 40mAlaska Airlines

Sun 18/521:40SYD - PDX

2 stops25h 40mAlaska Airlines

Deal found 28/4$1,810

Wed 7/507:40PDX - SYD

2 stops32h 00mCathay Pacific

Tue 20/521:50SYD - PDX

2 stops35h 34mCathay Pacific

Deal found 29/4$2,310

Wed 7/515:25PDX - SYD

2 stops24h 20mAir New Zealand

Tue 20/510:20SYD - PDX

1 stop19h 19mAir New Zealand

Deal found 29/4$2,537

Wed 7/508:00PDX - MEL

2 stops45h 15mCathay Pacific

Sun 18/514:25MEL - PDX

2 stops43h 21mCathay Pacific

Deal found 30/4$2,543

Sat 10/508:05PDX - SYD

1 stop18h 40mHawaiian Airlines

Sat 24/521:40SYD - PDX

2 stops28h 12mHawaiian Airlines

Deal found 29/4$2,149

Sat 10/517:50PDX - SYD

2 stops24h 55mMultiple Airlines

Sat 24/513:45SYD - PDX

2 stops23h 58mMultiple Airlines

Deal found 29/4$2,174

Sat 10/512:09PDX - SYD

2 stops41h 01mFiji Airways

Mon 19/513:15SYD - PDX

2 stops27h 44mFiji Airways

Deal found 28/4$2,376

One-way flights from Portland to Australia
Search for one-way flight options from Portland to Australia. Find affordable one-way fares based on user searches. Data last updated 30 April 2025.

Fri 25/723:59PDX - SYD

2 stops37h 56mUnited Airlines

Deal found 30/4$674

Fri 25/713:37PDX - SYD

1 stop24h 18mVirgin Australia

Deal found 30/4$699

Sat 16/814:50PDX - PER

3 stops41h 40mMultiple Airlines

Deal found 30/4$839

Sat 7/621:42PDX - AVV

3 stops53h 33mMultiple Airlines

Deal found 30/4$1,063

Sat 7/621:42PDX - MEL

3 stops53h 13mMultiple Airlines

Deal found 30/4$1,080

Mon 7/715:00PDX - SYD

1 stop23h 05mAmerican Airlines

Deal found 29/4$1,089

Fri 25/714:35PDX - SYD

3 stops35h 40mMultiple Airlines

Deal found 30/4$1,094

Wed 14/517:40PDX - BNE

2 stops42h 45mMultiple Airlines

Deal found 30/4$1,125

Fri 22/813:45PDX - PER

2 stops32h 10mUnited Airlines

Deal found 30/4$1,169

Sat 18/1013:45PDX - MEL

3 stops72h 45mUnited Airlines

Deal found 30/4$1,225

Sat 18/1013:58PDX - MEL

1 stop22h 47mQantas Airways

Deal found 30/4$1,272

Mon 7/721:30PDX - SYD

3 stops48h 40mAir Tahiti Nui

Deal found 29/4$2,116

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 13/8

21:50-14:40

2 stops47h 50m

Sydney Kingsford Smith

Wed 20/8

16:20-22:40

1 stop23h 20m

$1,444

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 29/5

13:35-06:55

1 stop24h 20m

Sydney Kingsford Smith

Thu 5/6

10:20-18:35

1 stop25h 15m

$1,510

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 17/8

13:37-06:55

1 stop24h 18m

Sydney Kingsford Smith

Sat 30/8

10:20-18:32

1 stop25h 12m

$1,613

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 27/5

17:33-19:45

1 stop33h 12m

Sydney Kingsford Smith

Sat 7/6

21:40-21:55

1 stop17h 15m

$1,758

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 2/9

19:40-07:20

1 stop18h 40m

Sydney Kingsford Smith

Tue 23/9

09:20-14:46

1 stop22h 26m

$1,788

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 8/8

15:40-08:45

2 stops24h 05m

Sydney Kingsford Smith

Mon 25/8

08:45-18:32

2 stops26h 47m

$1,801

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 10/5

08:05-19:45

1 stop18h 40m

Sydney Kingsford Smith

Sun 18/5

21:40-06:20

2 stops25h 40m

$1,810

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 15/10

19:40-12:10

2 stops22h 30m

Melbourne

Sun 26/10

07:10-18:24

2 stops29h 14m

$1,841

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 13/8

14:56-07:05

1 stop23h 09m

Sydney Kingsford Smith

Wed 20/8

09:10-14:20

1 stop22h 10m

$1,941

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 6/7

19:35-08:15

1 stop19h 40m

Melbourne

Tue 23/9

10:55-18:29

1 stop24h 34m

$1,955

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 46 results

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Best time to book a flight from Portland to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia 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 Australia

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

Currently, May is the cheapest month in which you can book a flight from Portland to Australia (average of $129). Flying from Portland to Australia in October is currently the most expensive (average of $171). 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 AU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Australia as you normally would.

Rainfall in Australia by month

In terms of precipitation, rainfall in Australia ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Australia when rainfall is around 50.0 mm.

Temperature in Australia by month

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Australia

Read through reviews of airlines operating flights from Portland to Australia, such as Air Tahiti Nui, Fiji Airways and Singapore Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

8.8

Very Good

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

8.1

Very Good

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Singapore Airlines

8.1

Very Good

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

8.0

Very Good

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

8.0

Very Good

8.8

Very Good

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

What airport do you fly from for flights from Portland to Australia?
If you book a flight to Australia from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 9.7 km from the centre of Portland.
What are the cheapest airlines to fly from Portland to Australia one-way?
The cheapet airlines for a one-way flight from Portland to Australia are United Airlines ($674), Virgin Australia ($699), and American Airlines ($1,089).
What are the most popular routes from Portland to Australia?
When deciding which route to take from Portland to Australia, consider Portland - Sydney Kingsford Smith, Portland - Melbourne or Portland - Brisbane, as they are the most popular.
Can I find deals for flights from Portland to Australia that include hotel bookings?
Yes. In addition to deals on Portland to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portland to Australia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Australia.
Can I find deals for business class flights from Portland to Australia?
Yes. Cheapflights offers flight deals from Portland to Australia 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 Australia?
Currently, May is the cheapest month in which you can book a flight from Portland to Australia (average of $129). Flying from Portland to Australia in October is currently the most expensive (average of $171). 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

Alternative routes for Portland to Australia

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Complete your trip

Australia car hire

Queensland car hire

New South Wales car hire

Victoria car hire

Tasmania car hire

Western Australia car hire

South Australia car hire

Australian Capital Territory car hire

Northern Territory car hire

Sydney Kingsford Smith Airport car hire

Melbourne Airport car hire

Brisbane Airport car hire

Direct flights to

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Direct flights to Exmouth

Direct flights to Mount Isa

Direct flights to Honiara

Direct flights to Port Lincoln

Direct flights to Port Hedland

Top airline flying from Portland to Australia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,173	Average$1,954	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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

Yes, we can. To see specific flights from Portland to Australia 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 Australia become cheaper?

Yes, Cheapflights offers price alerts on Portland to Australia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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