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$469+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheap 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 March 24, 2026.

This lol.travel deal was found by Cheapflights users on 3/22. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/273:15 pm
PDX
-
BNE
1 stop23h 30m
Air Canada
Sun 12/1310:45 am
BNE
-
PDX
1 stop16h 40m
Air Canada
Deal found 3/22$844
This Air Canada deal was found by Cheapflights users on 3/22. 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 6/910:10 am
PDX
-
BNE
1 stop27h 55m
Air Canada
Tue 6/1610:15 am
BNE
-
PDX
1 stop16h 15m
Air Canada
Deal found 3/22$856
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Wed 5/1310:10 am
PDX
-
BNE
1 stop27h 55m
Air Canada
Wed 5/2710:00 am
BNE
-
PDX
1 stop21h 45m
Air Canada
Deal found 3/24$859
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Sun 5/33:30 pm
PDX
-
BNE
1 stop22h 35m
Air Canada
Sun 5/1710:00 am
BNE
-
PDX
1 stop21h 45m
Air Canada
Deal found 3/20$860
This lol.travel deal was found by Cheapflights users on 3/22. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:10 pm
PDX
-
BNE
2 stops24h 20m
Multiple Airlines
Sun 12/1310:45 am
BNE
-
PDX
1 stop25h 45m
Multiple Airlines
Deal found 3/22$862
This Justfly.com deal was found by Cheapflights users on 3/23. 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.
Tue 8/43:30 pm
PDX
-
BNE
1 stop22h 35m
Air Canada
Fri 8/1410:00 am
BNE
-
PDX
1 stop26h 06m
Air Canada
Deal found 3/23$869
This Air Canada deal was found by Cheapflights users on 3/24. 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 10/3110:05 am
PDX
-
BNE
1 stop28h 40m
Multiple Airlines
Sun 11/86:10 am
BNE
-
PDX
2 stops21h 15m
Multiple Airlines
Deal found 3/24$887
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Wed 5/133:30 pm
PDX
-
BNE
1 stop22h 35m
Multiple Airlines
Wed 5/277:25 pm
BNE
-
PDX
2 stops31h 05m
Multiple Airlines
Deal found 3/24$888
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Tue 5/53:30 pm
PDX
-
BNE
1 stop22h 35m
Multiple Airlines
Tue 5/128:40 pm
BNE
-
PDX
2 stops29h 50m
Multiple Airlines
Deal found 3/20$889
This FlightHub deal was found by Cheapflights users on 3/24. 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.
Sat 6/67:45 pm
PDX
-
BNE
2 stops23h 15m
Air Canada
Sun 6/1410:00 am
BNE
-
PDX
1 stop16h 30m
Air Canada
Deal found 3/24$893
This flugladen.de deal was found by Cheapflights users on 3/20. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:45 pm
PDX
-
MEL
2 stops22h 20m
Multiple Airlines
Mon 5/116:00 am
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 3/20$894
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Wed 5/67:45 pm
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Wed 5/136:00 am
MEL
-
PDX
2 stops20h 30m
Multiple Airlines
Deal found 3/24$898

Find flight deals from Oregon to Australia

Keep the following information in mind while searching for Oregon to Australia flight deals. Data was last updated March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$856
(Air Canada)

One-way from

$469
(Air Canada)

Popular in

December

Cheapest in

September

Average price

$1,229
Provider with most accurate pricing for Portland-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Sydney Kingsford Smith flights.
Search Deals
From Oregon to Australia
Search Deals
One-way flight from Oregon to Australia
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($52 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 24, 2026.
Use the filters below to find and compare flights from Oregon to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 6/17

7:45 pm-11:25 am

2 stops22h 40m

Melbourne

Fri 7/17

6:00 am-2:51 pm

2 stops25h 51m

$902

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 9/10

7:45 pm-12:05 pm

2 stops23h 20m

Brisbane

Sun 9/27

8:40 pm-9:31 am

2 stops29h 51m

$907

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 5/4

3:30 pm-11:50 am

2 stops27h 50m

Adelaide

Mon 5/11

5:15 pm-2:45 pm

2 stops38h 00m

$969

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 5/7

2:50 pm-6:45 am

1 stop22h 55m

Melbourne

Thu 5/14

9:45 am-1:31 pm

1 stop20h 46m

$1,006

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 8/4

12:57 pm-7:00 am

2 stops25h 03m

Sydney Kingsford Smith

Tue 8/18

10:20 am-11:58 am

1 stop18h 38m

$1,009

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 4/18

3:15 pm-11:10 am

2 stops27h 25m

Adelaide

Tue 4/28

5:15 pm-9:10 am

2 stops32h 25m

$1,010

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 4/27

9:50 am-7:20 am

1 stop28h 30m

Sydney Kingsford Smith

Wed 5/6

6:00 am-9:30 am

2 stops20h 30m

$1,026

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 4/23

7:05 pm-7:50 am

2 stops43h 45m

Melbourne

Fri 5/8

10:00 am-4:23 pm

1 stop23h 23m

$1,033

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 8/7

2:56 pm-5:00 am

1 stop21h 04m

Brisbane

Sat 8/15

8:35 pm-11:59 pm

1 stop20h 24m

$1,064

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 8/14

2:56 pm-5:00 am

1 stop21h 04m

Brisbane

Fri 9/11

8:35 pm-9:15 pm

1 stop17h 40m

$1,064

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 53 resultsSorted by cheapest first
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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 $504). Flying from Oregon to Australia in October is currently the most expensive (average of $903). 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 Oregon to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oregon to Australia?

    For as low as $1,004, United Airlines can have you in Australia from Oregon in 19h 20m. Oregon and Australia are separated by a distance of 7557 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $405. Users have also found prices from $431 and $569 on United Airlines and Qantas Airways, 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 $504). Flying from Oregon to Australia in October is currently the most expensive (average of $903). 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

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

Top 8 airlines flying from Oregon to Australia

Discover the top 8 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$229Average$1,268FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$550Average$1,158FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$574Average$1,096FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$757Average$1,366FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$855Average$1,011FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$868Average$1,209FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$999Average$1,174FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$1,140Average$1,236FlexibilityNo cancel feeOn-timeN/A

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