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 ($666), American Airlines ($671), and Delta ($771). Find deals

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.

How far in advance should I book a flight from Portland to Australia?

Users have found that booking a flight from Portland to Australia at least 24 days early can save you up to 100% on average compared to booking a flight this week. If booking 24 days before your flight isn’t an option for you, users have found flights from Portland to Australia for as little as $1,464 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $2,027 for flights departing within the next 3 days.

What is the cheapest month to fly from Portland to Australia?

The best pricing can be found in the month of February. Prices to Australia from Portland average $1,841. You can even find prices in February for less than $1,841, as users have found deals to Australia from as low as $1,369. The month of December appears to be one of the more expensive times to travel to Australia from Portland. Flying in the targeted month can save you up to 35%.

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.

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.

$2,000+ Flights from Portland to Australia

Cheap flight deals from Portland to Australia

Round-trip from	$1,369
One-way from	$660
Popular in	December
Cheapest in	February
Average price	$1,629

Air Canada
20/6-30/6
4 total stops
43h 00m total
Portland to Australia

Search Deals

1/4
3 total stops
52h 05m total
Portland to Australia

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($399 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($94 potential savings vs. average return price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

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 21 February 2025.

Fri 20/619:40PDX - MEL

2 stops22h 25mAir Canada

Mon 30/606:00MEL - PDX

2 stops20h 35mAir Canada

Deal found 20/2$1,369

Wed 19/308:55PDX - BNE

2 stops28h 35mUnited Airlines

Wed 26/310:40BNE - PDX

2 stops29h 15mUnited Airlines

Deal found 19/2$1,378

Wed 19/305:00PDX - BNE

1 stop31h 30mAmerican Airlines

Wed 26/308:05BNE - PDX

1 stop22h 17mAmerican Airlines

Deal found 20/2$1,435

Wed 19/305:40PDX - BNE

2 stops32h 05mDelta

Wed 26/310:30BNE - PDX

1 stop22h 29mDelta

Deal found 20/2$1,442

Mon 10/307:00PDX - SYD

2 stops30h 00mUnited Airlines

Sun 16/312:10SYD - PDX

1 stop30h 40mUnited Airlines

Deal found 20/2$1,442

Fri 12/917:10PDX - SYD

1 stop20h 25mDelta

Fri 26/909:25SYD - PDX

1 stop26h 51mDelta

Deal found 21/2$1,447

Sat 8/319:05PDX - SYD

2 stops32h 20mAir Canada

Mon 17/307:30SYD - PDX

2 stops25h 14mAir Canada

Deal found 20/2$1,453

Sat 14/619:40PDX - SYD

2 stops28h 00mMultiple Airlines

Sun 22/607:00SYD - PDX

2 stops19h 35mMultiple Airlines

Deal found 20/2$1,483

Fri 4/413:45PDX - MEL

1 stop25h 30mUnited Airlines

Fri 11/409:30MEL - PDX

2 stops30h 06mUnited Airlines

Deal found 19/2$1,494

Fri 29/815:25PDX - BNE

1 stop22h 40mAir Canada

Fri 12/910:00BNE - PDX

1 stop16h 31mAir Canada

Deal found 21/2$1,519

Tue 25/215:25PDX - MEL

2 stops27h 25mMultiple Airlines

Mon 10/308:10MEL - PDX

2 stops24h 34mMultiple Airlines

Deal found 20/2$1,527

Sun 9/318:27PDX - SYD

1 stop20h 33mAlaska Airlines

Wed 9/409:10SYD - PDX

1 stop19h 20mAlaska Airlines

Deal found 21/2$1,723

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 21 February 2025.

Fri 20/619:40PDX - MEL

2 stops22h 25mAir Canada

Mon 30/606:00MEL - PDX

2 stops20h 35mAir Canada

Deal found 20/2$1,369

Wed 19/308:55PDX - BNE

2 stops28h 35mUnited Airlines

Wed 26/310:40BNE - PDX

2 stops29h 15mUnited Airlines

Deal found 19/2$1,378

Wed 19/305:00PDX - BNE

1 stop31h 30mAmerican Airlines

Wed 26/308:05BNE - PDX

1 stop22h 17mAmerican Airlines

Deal found 20/2$1,435

Wed 19/305:40PDX - BNE

2 stops32h 05mDelta

Wed 26/310:30BNE - PDX

1 stop22h 29mDelta

Deal found 20/2$1,442

Sat 14/619:40PDX - SYD

2 stops28h 00mMultiple Airlines

Sun 22/607:00SYD - PDX

2 stops19h 35mMultiple Airlines

Deal found 20/2$1,483

Tue 12/813:26PDX - SYD

2 stops28h 09mAir New Zealand

Mon 25/809:55SYD - PDX

2 stops25h 41mAir New Zealand

Deal found 20/2$1,758

Thu 20/318:07PDX - SYD

1 stop31h 38mAlaska Airlines

Sun 30/321:40SYD - PDX

1 stop25h 25mAlaska Airlines

Deal found 20/2$1,841

Wed 5/310:32PDX - PER

2 stops40h 13mQatar Airways

Wed 12/322:45PER - PDX

2 stops39h 11mQatar Airways

Deal found 20/2$2,038

Sat 17/510:30PDX - BNE

1 stop25h 55mQantas Airways

Sat 31/520:05BNE - PDX

1 stop20h 51mQantas Airways

Deal found 21/2$2,120

Wed 5/317:37PDX - PER

2 stops37h 08mCathay Pacific

Tue 11/300:15PER - PDX

2 stops33h 00mCathay Pacific

Deal found 20/2$2,198

Wed 2/407:00PDX - PER

2 stops55h 10mSingapore Airlines

Tue 29/401:10PER - PDX

2 stops27h 39mSingapore Airlines

Deal found 20/2$2,441

Thu 14/817:30PDX - SYD

2 stops25h 45mFiji Airways

Wed 20/813:15SYD - PDX

2 stops24h 49mFiji Airways

Deal found 20/2$2,494

Last-minute flights from Portland to Australia
Discover last-minute flight deals from Portland to Australia. Data last updated 21 February 2025 and is based on user searches.

Tue 25/215:25PDX - MEL

2 stops27h 25mMultiple Airlines

Mon 10/308:10MEL - PDX

2 stops24h 34mMultiple Airlines

Deal found 20/2$1,527

Tue 25/213:34PDX - MEL

1 stop25h 26mUnited Airlines

Mon 10/312:00MEL - PDX

1 stop24h 25mUnited Airlines

Deal found 20/2$2,059

Tue 25/217:50PDX - MEL

2 stops34h 10mCathay Pacific

Sun 9/300:45MEL - PDX

2 stops36h 30mCathay Pacific

Deal found 20/2$2,896

Thu 27/209:38PDX - SYD

3 stops32h 22mFiji Airways

Mon 17/314:00SYD - PDX

2 stops26h 38mFiji Airways

Deal found 20/2$2,960

Fri 28/216:20PDX - SYD

1 stop21h 15mDelta

Tue 11/310:05SYD - PDX

2 stops20h 18mDelta

Deal found 21/2$1,455

Fri 28/216:20PDX - SYD

1 stop21h 15mDelta

Sat 8/314:15SYD - PDX

2 stops21h 10mDelta

Deal found 21/2$1,455

Sun 2/307:46PDX - SYD

2 stops41h 29mANA

Tue 11/312:25SYD - PDX

2 stops23h 59mANA

Deal found 21/2$2,846

Mon 3/319:05PDX - SYD

2 stops28h 00mMultiple Airlines

Tue 11/318:25SYD - PDX

3 stops33h 09mMultiple Airlines

Deal found 21/2$2,330

Mon 3/315:54PDX - SYD

1 stop22h 21mAir New Zealand

Wed 12/313:55SYD - PDX

2 stops22h 29mAir New Zealand

Deal found 21/2$2,708

Mon 3/319:42PDX - SYD

2 stops41h 38mAsiana Airlines

Wed 12/310:20SYD - PDX

2 stops28h 40mAsiana Airlines

Deal found 21/2$3,060

Mon 3/321:16PDX - SYD

3 stops52h 24mAir Tahiti Nui

Wed 12/319:15SYD - PDX

3 stops41h 00mAir Tahiti Nui

Deal found 21/2$3,140

Mon 3/319:05PDX - AVV

2 stops24h 05mMultiple Airlines

Tue 11/316:20AVV - PDX

2 stops35h 14mMultiple Airlines

Deal found 21/2$4,246

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 21 February 2025.

Tue 1/420:55PDX - BNE

3 stops52h 05mMultiple Airlines

Deal found 20/2$660

Sun 9/319:31PDX - MEL

1 stop19h 29mUnited Airlines

Deal found 20/2$666

Sat 1/315:43PDX - SYD

1 stop22h 17mAmerican Airlines

Deal found 21/2$671

Wed 26/313:39PDX - BNE

1 stop23h 51mUnited Airlines

Deal found 20/2$674

Sat 12/407:00PDX - SYD

2 stops31h 00mUnited Airlines

Deal found 20/2$676

Mon 24/309:12PDX - BNE

2 stops28h 33mDelta

Deal found 20/2$771

Thu 27/214:45PDX - SYD

1 stop23h 15mAlaska Airlines

Deal found 20/2$828

Wed 30/410:08PDX - SYD

1 stop27h 27mDelta

Deal found 20/2$829

Sun 23/319:05PDX - BNE

1 stop19h 35mAir Canada

Deal found 19/2$839

Fri 28/306:45PDX - AVV

3 stops46h 05mMultiple Airlines

Deal found 20/2$966

Thu 27/205:08PDX - SYD

3 stops31h 17mMultiple Airlines

Deal found 20/2$1,032

Wed 16/719:40PDX - SYD

1 stop18h 40mAir Canada

Deal found 19/2$1,469

Find flights from Portland to Australia within your budget

Fly from

Fly to

Route

Depart

Return

Price

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 20/6

19:40-11:05

2 stops22h 25m

Melbourne

Mon 30/6

06:00-09:35

2 stops20h 35m

$1,369

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 19/3

08:55-06:30

2 stops28h 35m

Brisbane

Wed 26/3

10:40-22:55

2 stops29h 15m

$1,378

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 19/3

05:00-05:30

1 stop31h 30m

Brisbane

Wed 26/3

08:05-13:22

1 stop22h 17m

$1,435

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 19/3

05:40-06:45

2 stops32h 05m

Brisbane

Wed 26/3

10:30-15:59

1 stop22h 29m

$1,442

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 10/3

07:00-07:00

2 stops30h 00m

Sydney Kingsford Smith

Sun 16/3

12:10-00:50

1 stop30h 40m

$1,442

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 8/3

19:05-22:25

2 stops32h 20m

Sydney Kingsford Smith

Tue 18/3

07:30-09:34

2 stops20h 04m

$1,453

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 4/3

16:20-06:50

1 stop19h 30m

Sydney Kingsford Smith

Thu 13/3

13:15-18:46

2 stops23h 31m

$1,455

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 14/6

19:40-16:40

2 stops28h 00m

Sydney Kingsford Smith

Sun 22/6

07:00-09:35

2 stops19h 35m

$1,483

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Fri 4/4

13:45-09:15

1 stop25h 30m

Melbourne

Fri 11/4

09:30-22:36

2 stops30h 06m

$1,494

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/8

10:10-07:05

1 stop27h 55m

Brisbane

Sat 23/8

19:05-14:50

2 stops36h 45m

$1,554

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 55 results

...

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.

Travel insights for flights from Portland to Australia

Get recent, data-driven insights about flights from Portland to Australia including ideal travel times, pricing trends, and more.

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, Emirates and Singapore Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

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.

Air Tahiti Nui

8.7

Very Good

61 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Emirates

8.1

Very Good

3,276 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very Good

1,299 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Fiji Airways

8.0

Very Good

184 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Delta

8.0

Very Good

8,213 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

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 ($666), American Airlines ($671), and Delta ($771).
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

Top airline flying from Portland to Australia

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,177	Average$1,825	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Portland to Australia?

Cheapflights helps you search for flights from Portland to Australia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Australia from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Portland to Australia from $660

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portland to Australia

Keep the following information in mind while searching for Portland to Australia flight deals. Data was last updated 21 February 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Australia

Cheapest flights from Portland to AustraliaExplore 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 21 February 2025.

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 21 February 2025.

Find flights from Portland to Australia within your budget

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.

Travel insights for flights from Portland to Australia

Get recent, data-driven insights about flights from Portland to Australia including ideal travel times, pricing trends, and more.

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

What is the cheapest time of day to fly from PDX to AU?

Find hourly flight availability from Portland to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

Reviews of airlines servicing Australia

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

Related info for your journey

Find useful and relevant information for your journey from Portland to Australia. 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 Australia?

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

What are the most popular routes from Portland to Australia?

Can I find deals for flights from Portland to Australia that include hotel bookings?

How can I find direct flights from Portland to Australia?

Can I find deals for business class flights from Portland to Australia?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Australia

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portland to Australia

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Australia?

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

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

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

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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 21 February 2025.