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$421+ Cheap flights from Portland (PDX) to Australia

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$866
(American Airlines)

One-way from

$421
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,039
Provider with most accurate pricing for Portland-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Portland-Sydney Kingsford Smith flights.
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From Portland to Australia
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One-way flight from Portland to Australia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 febrero 20, 2025.

This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/207:40 pmPDX - MEL
2 stops22h 25mAir Canada
lun. 6/306:00 amMEL - PDX
2 stops20h 35mAir Canada
Deal found 2/20$873
This United Airlines deal was found by Cheapflights users on 2/19. 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.
mié. 3/198:55 amPDX - BNE
2 stops28h 35mUnited Airlines
mié. 3/2610:40 amBNE - PDX
2 stops29h 15mUnited Airlines
Deal found 2/19$879
This Justfly.com deal was found by Cheapflights users on 2/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/97:40 pmPDX - MEL
2 stops23h 20mMultiple Airlines
sáb. 8/166:00 pmMEL - PDX
2 stops45h 56mMultiple Airlines
Deal found 2/19$881
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/195:00 amPDX - BNE
1 stop31h 30mAmerican Airlines
mié. 3/268:05 amBNE - PDX
1 stop22h 17mAmerican Airlines
Deal found 2/20$915
This Delta deal was found by Cheapflights users on 2/20. 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.
mié. 3/195:40 amPDX - BNE
2 stops32h 05mDelta
mié. 3/2610:30 amBNE - PDX
1 stop22h 29mDelta
Deal found 2/20$920
This United Airlines deal was found by Cheapflights users on 2/20. 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.
lun. 3/107:00 amPDX - SYD
2 stops30h 00mUnited Airlines
dom. 3/1612:10 pmSYD - PDX
1 stop30h 40mUnited Airlines
Deal found 2/20$920
This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/87:05 pmPDX - SYD
2 stops32h 20mAir Canada
lun. 3/177:30 amSYD - PDX
2 stops25h 14mAir Canada
Deal found 2/20$927
This Delta deal was found by Cheapflights users on 2/20. 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.
sáb. 3/159:12 amPDX - SYD
2 stops26h 53mDelta
sáb. 3/2210:05 amSYD - PDX
2 stops20h 18mDelta
Deal found 2/20$928
This Justfly.com deal was found by Cheapflights users on 2/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/147:40 pmPDX - SYD
2 stops28h 00mMultiple Airlines
dom. 6/227:00 amSYD - PDX
2 stops19h 35mMultiple Airlines
Deal found 2/20$946
This United Airlines deal was found by Cheapflights users on 2/19. 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.
vie. 4/41:45 pmPDX - MEL
1 stop25h 30mUnited Airlines
vie. 4/119:30 amMEL - PDX
2 stops30h 06mUnited Airlines
Deal found 2/19$953
This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/133:25 pmPDX - BNE
1 stop22h 40mAir Canada
mié. 10/2210:00 amBNE - PDX
1 stop25h 46mAir Canada
Deal found 2/20$969
This KAYAK deal was found by Cheapflights users on 2/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/121:26 pmPDX - SYD
2 stops28h 09mAir New Zealand
lun. 8/259:55 amSYD - PDX
2 stops25h 41mAir New Zealand
Deal found 2/20$1,121

Find flights from Portland to Australia within your budget

Customize your flight search to find flights from Portland to Australia 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 febrero 20, 2025.

Fly from

Portland

Fly to

Australia

Route

Depart

Return

Price

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

mié. 3/19

8:55 am-6:30 am

2 stops28h 35m

Brisbane

mié. 3/26

10:40 am-10:55 pm

2 stops29h 15m

$879

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

mié. 3/19

5:00 am-5:30 am

1 stop31h 30m

Brisbane

mié. 3/26

8:05 am-1:22 pm

1 stop22h 17m

$915

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

mié. 3/19

5:40 am-6:45 am

2 stops32h 05m

Brisbane

mié. 3/26

10:30 am-3:59 pm

1 stop22h 29m

$920

PortlandSydney

PDX - SYD

PDXSYD

Portland

lun. 3/10

7:00 am-7:00 am

2 stops30h 00m

Sydney Kingsford Smith

dom. 3/16

12:10 pm-12:50 am

1 stop30h 40m

$920

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

mar. 2/25

3:25 pm-2:15 pm

2 stops27h 50m

Melbourne

lun. 3/10

8:10 am-2:44 pm

2 stops24h 34m

$924

PortlandSydney

PDX - SYD

PDXSYD

Portland

sáb. 3/8

7:05 pm-10:25 pm

2 stops32h 20m

Sydney Kingsford Smith

mar. 3/18

7:30 am-9:34 am

2 stops20h 04m

$927

PortlandSydney

PDX - SYD

PDXSYD

Portland

sáb. 3/15

9:12 am-6:05 am

2 stops26h 53m

Sydney Kingsford Smith

sáb. 3/22

10:05 am-12:23 pm

2 stops20h 18m

$928

PortlandSydney

PDX - SYD

PDXSYD

Portland

sáb. 6/14

7:40 pm-4:40 pm

2 stops28h 00m

Sydney Kingsford Smith

dom. 6/22

7:00 am-9:35 am

2 stops19h 35m

$946

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

vie. 4/4

1:45 pm-9:15 am

1 stop25h 30m

Melbourne

vie. 4/11

9:30 am-10:36 pm

2 stops30h 06m

$953

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

dom. 8/3

10:10 am-7:05 am

1 stop27h 55m

Brisbane

sáb. 8/23

7:05 pm-2:50 pm

2 stops36h 45m

$991

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 54 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 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.

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, February is the cheapest month in which you can book a flight from Portland to Australia (average of $1,051). Flying from Portland to Australia in December is currently the most expensive (average of $1,643). 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?

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 febrero 20, 2025.

When flying from Portland to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Australia by month

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

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals 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 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated febrero 20, 2025.
See what other customers who have flown with Air Tahiti Nui, ANA and Korean Air from Portland to Australia have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

ANA
8.4
Very good
842 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

Korean Air
8.4
Very good
1,037 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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.

Emirates
8.1
Very good
3,276 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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
1,301 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Food

7.8

Boarding

8.7

Comfort

8.0

Overall

8.7

Crew

9.1

Entertainment

7.2

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

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?

    For a flight from Portland to Australia, you will be flying from Portland. Portland (PDX) is just 6.0 mi from the center of the city.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $425. American Airlines flights start at $428 while deals on Alaska Airlines start at $528 one-way.

  • What are the most popular routes from Portland to Australia?

    The most popular flight routes from Portland to Australia are Portland - Sydney Kingsford Smith, Portland - Melbourne and Portland - Brisbane.

  • 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 vacation 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, February is the cheapest month in which you can book a flight from Portland to Australia (average of $1,051). Flying from Portland to Australia in December is currently the most expensive (average of $1,643). 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

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Alternative routes for Portland to Australia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Portland to Australia

Discover the top 8 airlines that operate flights from Portland to Australia. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$444Average$1,080FlexibilityNo cancel feeOn-time85%
DeltaCheapest$456Average$1,247FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$759Average$1,363FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$816Average$1,307FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,036Average$1,446FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,055Average$1,179FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$1,068Average$1,259FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$1,275Average$1,502FlexibilityNo cancel feeOn-time81%
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