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$492+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
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 July 2, 2026.

This Trip.com deal was found by Cheapflights users on 6/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:30 pm
PDX
-
SYD
2 stops25h 20m
Multiple Airlines
Thu 9/241:15 pm
SYD
-
PDX
3 stops44h 20m
Multiple Airlines
Deal found 6/29$974
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:03 am
PDX
-
SYD
2 stops35h 47m
Multiple Airlines
Sun 9/271:15 pm
SYD
-
PDX
2 stops25h 40m
Multiple Airlines
Deal found 6/27$992
This Air Canada deal was found by Cheapflights users on 6/28. 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 10/3110:00 am
PDX
-
BNE
1 stop29h 45m
Air Canada
Sun 11/810:45 am
BNE
-
PDX
1 stop25h 46m
Air Canada
Deal found 6/28$1,032
This FlightHub deal was found by Cheapflights users on 7/1. 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.
Tue 10/207:45 pm
PDX
-
BNE
1 stop18h 20m
Air Canada
Tue 11/310:45 am
BNE
-
PDX
1 stop28h 01m
Air Canada
Deal found 7/1$1,042
This CheapOair deal was found by Cheapflights users on 6/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:45 pm
PDX
-
BNE
1 stop18h 20m
Multiple Airlines
Wed 11/186:10 am
BNE
-
PDX
2 stops21h 16m
Multiple Airlines
Deal found 6/30$1,058
This KAYAK deal was found by Cheapflights users on 6/29. 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.
Sun 11/87:10 pm
PDX
-
AVV
2 stops23h 55m
Multiple Airlines
Sun 11/296:00 am
AVV
-
PDX
2 stops22h 26m
Multiple Airlines
Deal found 6/29$1,058
This Air Canada deal was found by Cheapflights users on 6/28. 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 10/203:30 pm
PDX
-
BNE
1 stop22h 35m
Multiple Airlines
Tue 11/36:10 am
BNE
-
PDX
2 stops21h 16m
Multiple Airlines
Deal found 6/28$1,059
This BusinessClass deal was found by Cheapflights users on 6/27. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am
PDX
-
SYD
1 stop17h 45m
Multiple Airlines
Tue 11/109:40 pm
SYD
-
PDX
1 stop18h 09m
Multiple Airlines
Deal found 6/27$1,063
This Air Canada deal was found by Cheapflights users on 7/1. 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 8/87:45 pm
PDX
-
BNE
1 stop18h 20m
Air Canada
Sun 8/1610:00 am
BNE
-
PDX
1 stop21h 51m
Air Canada
Deal found 7/1$1,069
This Air Canada deal was found by Cheapflights users on 7/2. 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 11/17:10 pm
PDX
-
MEL
2 stops24h 25m
Multiple Airlines
Sun 11/86:05 am
MEL
-
PDX
2 stops22h 21m
Multiple Airlines
Deal found 7/2$1,073
This Air Canada deal was found by Cheapflights users on 6/30. 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 8/117:45 pm
PDX
-
MEL
2 stops22h 35m
Multiple Airlines
Tue 8/186:00 am
MEL
-
PDX
2 stops25h 51m
Multiple Airlines
Deal found 6/30$1,074
This CheapOair deal was found by Cheapflights users on 7/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:10 pm
PDX
-
BNE
2 stops24h 15m
Multiple Airlines
Mon 11/166:10 am
BNE
-
PDX
2 stops21h 16m
Multiple Airlines
Deal found 7/2$1,076

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 July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$974
(Trip.com)

One-way from

$492
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$1,300
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. 12% potential increase in price ($167 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 July 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 July 2, 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

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 10/31

10:00 am-8:45 am

1 stop29h 45m

Brisbane

Sun 11/8

10:45 am-6:31 pm

1 stop25h 46m

$1,032

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 11/8

7:10 pm-2:05 pm

2 stops23h 55m

Melbourne Avalon

Sun 11/29

6:00 am-9:26 am

2 stops22h 26m

$1,058

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 11/8

7:10 pm-1:35 pm

2 stops23h 25m

Melbourne

Sun 11/29

7:10 am-6:31 pm

2 stops30h 21m

$1,080

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 10/20

7:45 pm-11:00 am

2 stops22h 15m

Brisbane

Tue 11/3

6:10 am-9:26 am

2 stops21h 16m

$1,083

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 8/24

7:45 pm-2:30 pm

2 stops25h 45m

Brisbane

Fri 9/4

10:00 am-7:11 pm

1 stop26h 11m

$1,102

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 10/16

10:10 am-7:05 am

1 stop27h 55m

Brisbane

Fri 10/30

9:45 am-6:31 pm

1 stop25h 46m

$1,107
Quickest round-trip

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 9/10

3:33 pm-5:00 am

1 stop20h 27m

Brisbane

Sun 9/27

8:35 pm-9:55 pm

1 stop18h 20m

$1,112

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 10/31

7:10 pm-1:30 pm

2 stops25h 20m

Brisbane

Sun 11/8

6:10 am-9:26 am

2 stops21h 16m

$1,120

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Mon 10/26

7:10 pm-2:05 pm

2 stops24h 55m

Melbourne Avalon

Thu 11/19

6:00 am-9:26 am

2 stops22h 26m

$1,145

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Fri 10/16

3:30 pm-10:40 am

2 stops26h 10m

Coolangatta Gold Coast

Fri 10/30

6:00 am-8:46 pm

2 stops31h 46m

$1,162

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 60 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, April is the cheapest month in which you can book a flight from Oregon to Australia (average of $177). Flying from Oregon to Australia in July is currently the most expensive (average of $823). 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.

How far ahead should I book a flight from Oregon to Australia?

The price you pay for your flight from Oregon to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 24 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $1,080, Air Canada can have you in Australia from Oregon in 23h 25m. Oregon and Australia are separated by a distance of 8111 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 $508 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, April is the cheapest month in which you can book a flight from Oregon to Australia (average of $177). Flying from Oregon to Australia in July is currently the most expensive (average of $823). 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 7 airlines flying from Oregon to Australia

Discover the top 7 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 July 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$372Average$1,063FlexibilityNo cancel feeOn-time67%
DeltaCheapest$497Average$1,277FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$550Average$1,153FlexibilityNo cancel feeOn-time85%
Qantas AirwaysCheapest$757Average$1,326FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$830Average$1,215FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$855Average$977FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$999Average$1,182FlexibilityNo cancel feeOn-time75%

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