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$587+ Cheap flights from Oregon 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Oregon to Australia

Keep the following information in mind while searching for Oregon to Australia flight deals. Data was last updated April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,112
(Kiwi.com)

One-way from

$587
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,219
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 Oregon to Australia
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One-way flight from Oregon to Australia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($177 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Oregon to Australia

Cheapest flights from Oregon to Australia
Explore the most affordable flight options available from Oregon to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This StudentUniverse deal was found by Cheapflights users on 4/21. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:40 pmPDX - SYD
2 stops22h 05mMultiple Airlines
Wed 9/249:55 amSYD - PDX
2 stops25h 41mMultiple Airlines
Deal found 4/21$1,053
This Air Canada deal was found by Cheapflights users on 4/21. 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.
Tue 8/197:40 pmPDX - SYD
1 stop18h 40mAir Canada
Wed 9/249:20 amSYD - PDX
1 stop26h 26mAir Canada
Deal found 4/21$1,069
This StudentUniverse deal was found by Cheapflights users on 4/21. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/243:25 pmPDX - SYD
2 stops24h 20mAir New Zealand
Mon 9/19:55 amSYD - PDX
2 stops25h 41mAir New Zealand
Deal found 4/21$1,094
This Air Canada deal was found by Cheapflights users on 4/22. 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.
Sat 11/157:05 pmPDX - MEL
2 stops24h 30mAir Canada
Tue 11/257:10 amMEL - PDX
2 stops21h 24mAir Canada
Deal found 4/22$1,104
This FlightHub deal was found by Cheapflights users on 4/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:40 pmPDX - MEL
2 stops23h 40mMultiple Airlines
Sun 8/108:30 pmMEL - PDX
2 stops35h 15mMultiple Airlines
Deal found 4/22$1,112
This Air Canada deal was found by Cheapflights users on 4/22. 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.
Tue 10/1410:00 amPDX - BNE
1 stop28h 05mAir Canada
Tue 11/410:45 amBNE - PDX
1 stop16h 49mAir Canada
Deal found 4/22$1,141
This Hawaiian Airlines deal was found by Cheapflights users on 4/21. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:30 amPDX - SYD
1 stop19h 15mHawaiian Airlines
Fri 8/229:40 pmSYD - PDX
1 stop18h 00mHawaiian Airlines
Deal found 4/21$1,152
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:35 amPDX - SYD
1 stop19h 10mAlaska Airlines
Sat 10/259:40 pmSYD - PDX
1 stop18h 20mAlaska Airlines
Deal found 4/21$1,157
This Jetabroad deal was found by Cheapflights users on 4/21. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/45:30 pmPDX - BNE
2 stops24h 05mMultiple Airlines
Wed 6/1111:35 amBNE - PDX
2 stops26h 13mMultiple Airlines
Deal found 4/21$1,166
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:03 amEUG - SYD
2 stops20h 42mAlaska Airlines
Fri 6/139:40 pmSYD - EUG
2 stops43h 19mAlaska Airlines
Deal found 4/22$1,184
This Gurufare deal was found by Cheapflights users on 4/22. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:15 pmPDX - MEL
2 stops23h 35mAir New Zealand
Wed 11/1912:05 pmMEL - PDX
2 stops25h 19mAir New Zealand
Deal found 4/22$1,202
This Gurufare deal was found by Cheapflights users on 4/22. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:09 pmBOI - SYD
2 stops21h 36mAir New Zealand
Fri 9/199:55 amSYD - BOI
2 stops43h 35mAir New Zealand
Deal found 4/22$1,221

Cheapflights Fare Finder

Customize your flight search to find flights from Oregon 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 April 22, 2025.
Use the filters below to find and compare flights from Oregon to Australia that are best for you.

Fly from

Oregon

Fly to

Australia

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 6/4

9:30 am-2:40 pm

2 stops36h 10m

Sydney Kingsford Smith

Wed 6/18

4:20 pm-4:20 pm

1 stop17h 00m

$1,112

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 10/14

10:00 am-7:05 am

1 stop28h 05m

Brisbane

Tue 11/4

10:45 am-9:34 am

1 stop16h 49m

$1,141

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 5/30

8:00 am-7:45 pm

1 stop18h 45m

Sydney Kingsford Smith

Fri 6/13

9:40 pm-6:00 am

2 stops25h 20m

$1,157

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 6/4

5:30 pm-10:35 am

2 stops24h 05m

Brisbane

Wed 6/11

11:35 am-8:48 pm

2 stops26h 13m

$1,166

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 6/3

5:55 pm-11:30 am

2 stops24h 35m

Melbourne

Tue 6/10

12:55 pm-8:43 pm

2 stops24h 48m

$1,178

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Fri 6/6

6:03 am-7:45 pm

2 stops20h 42m

Sydney Kingsford Smith

Fri 6/13

9:40 pm-11:59 pm

2 stops43h 19m

$1,184

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Wed 9/10

7:09 pm-8:45 am

2 stops21h 36m

Sydney Kingsford Smith

Fri 9/19

9:55 am-1:30 pm

2 stops43h 35m

$1,221

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 6/1

10:00 am-7:15 pm

2 stops40h 15m

Sydney Kingsford Smith

Mon 6/16

8:55 pm-6:45 pm

2 stops38h 50m

$1,222

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Thu 6/5

5:55 pm-11:35 am

2 stops25h 10m

Adelaide

Thu 6/12

12:35 pm-6:26 pm

2 stops22h 21m

$1,252

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

Sun 6/22

1:55 pm-6:55 am

1 stop24h 00m

Sydney Kingsford Smith

Mon 7/7

9:30 am-3:09 pm

1 stop22h 39m

$1,257

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 44 results
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Best time to book a flight from Oregon to Australia

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

Cheapflights Insights

Everything you need to know about your flight from Oregon to Australia

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

Currently, February is the cheapest month in which you can book a flight from Oregon to Australia (average of $1,046). Flying from Oregon 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 OR to AU?

Find hourly flight availability from Oregon 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 April 22, 2025.

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

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 April 22, 2025.
To help decide which airline to fly from Oregon to Australia, see what other customers have to say about Air Tahiti Nui, ANA and Asiana Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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
8.8
Very good
62 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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
8.3
Very good
847 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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.
Asiana Airlines
8.2
Very good
442 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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.
Fiji Airways
8.1
Very good
188 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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
1,290 reviews
Air Tahiti Nui
8.8
Very good
62 reviews

Entertainment

7.3

Food

7.8

Boarding

8.7

Overall

8.8

Crew

9.1

Comfort

8.1

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 Oregon to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $696. Users have also found prices from $697 and $831 on American Airlines and Air Canada, respectively.

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

    Yes. In addition to deals on Oregon to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oregon to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oregon to Australia.

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

    Yes. Cheapflights offers flight deals from Oregon 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 Oregon to Australia?

    Currently, February is the cheapest month in which you can book a flight from Oregon to Australia (average of $1,046). Flying from Oregon 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 Oregon to Australia

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Top 9 airlines flying from Oregon to Australia

Discover the top 9 airlines that operate flights from Oregon 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$444Average$1,277FlexibilityNo cancel feeOn-time85%
DeltaCheapest$456Average$1,242FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$656Average$1,381FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$845Average$1,266FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,036Average$1,438FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$1,055Average$1,142FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$1,068Average$1,254FlexibilityNo cancel feeOn-time75%
Singapore AirlinesCheapest$1,275Average$1,502FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,286Average$1,360FlexibilityNo cancel feeOn-time68%

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