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$613+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
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 May 13, 2026.

This Air Canada deal was found by Cheapflights users on 5/12. 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 10/207:45 pm
PDX
-
BNE
1 stop18h 20m
Air Canada
Tue 11/310:45 am
BNE
-
PDX
1 stop21h 55m
Air Canada
Deal found 5/12$1,038
This Air Canada deal was found by Cheapflights users on 5/10. 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 5/123:30 pm
PDX
-
BNE
1 stop22h 35m
Air Canada
Sun 5/2410:00 am
BNE
-
PDX
1 stop26h 05m
Air Canada
Deal found 5/10$1,040
This CheapOair deal was found by Cheapflights users on 5/11. 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.
Tue 10/2010:10 am
PDX
-
BNE
1 stop27h 55m
Multiple Airlines
Tue 11/36:10 am
BNE
-
PDX
2 stops21h 15m
Multiple Airlines
Deal found 5/11$1,065
This Air Canada deal was found by Cheapflights users on 5/11. 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 9/110:10 am
PDX
-
BNE
1 stop27h 55m
Multiple Airlines
Mon 9/218:40 pm
BNE
-
PDX
2 stops29h 51m
Multiple Airlines
Deal found 5/11$1,067
This Justfly.com deal was found by Cheapflights users on 5/11. 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.
Mon 8/37:45 pm
PDX
-
BNE
2 stops22h 45m
Air Canada
Wed 8/1210:00 am
BNE
-
PDX
1 stop16h 31m
Air Canada
Deal found 5/11$1,072
This Air Canada deal was found by Cheapflights users on 5/12. 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
Air Canada
Sun 11/810:45 am
BNE
-
PDX
1 stop16h 40m
Air Canada
Deal found 5/12$1,075
This FlightHub deal was found by Cheapflights users on 5/9. 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 7/267:45 pm
PDX
-
BNE
1 stop18h 20m
Air Canada
Thu 8/610:15 am
BNE
-
PDX
1 stop16h 16m
Air Canada
Deal found 5/9$1,085
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 6/173:27 pm
PDX
-
MEL
1 stop22h 18m
American Airlines
Fri 7/179:45 am
MEL
-
PDX
2 stops23h 53m
American Airlines
Deal found 5/12$1,087
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:50 pm
PDX
-
BNE
1 stop21h 10m
Qantas Airways
Fri 9/188:35 pm
BNE
-
PDX
1 stop18h 20m
Qantas Airways
Deal found 5/11$1,092
This KAYAK deal was found by Cheapflights users on 5/11. 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 8/161:03 pm
PDX
-
MEL
1 stop26h 12m
Multiple Airlines
Tue 8/2510:55 am
MEL
-
PDX
1 stop26h 36m
Multiple Airlines
Deal found 5/11$1,093
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 8/131:03 pm
PDX
-
MEL
1 stop26h 12m
United Airlines
Thu 8/2710:55 am
MEL
-
PDX
1 stop24h 24m
United Airlines
Deal found 5/11$1,094
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Thu 8/138:40 am
PDX
-
MEL
2 stops30h 35m
United Airlines
Sat 8/2210:55 am
MEL
-
PDX
1 stop18h 05m
United Airlines
Deal found 5/11$1,098

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 May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,038
(Air Canada)

One-way from

$613
(Air Canada)

Popular in

December

Cheapest in

September

Average price

$1,148
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. 11% potential increase in price ($161 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 May 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 May 13, 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

Sun 8/9

5:00 am-8:15 am

2 stops34h 15m

Melbourne

Sat 8/22

10:55 am-9:05 pm

2 stops27h 10m

$1,098

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 7/1

7:20 am-7:50 am

2 stops31h 30m

Melbourne

Wed 8/19

10:00 am-2:45 pm

2 stops21h 45m

$1,106

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 5/17

3:30 pm-7:05 am

1 stop22h 35m

Brisbane

Sun 5/31

10:00 am-9:30 am

1 stop16h 30m

$1,150

MedfordSydney

MFR - SYD

MFRSYD

Medford

Wed 5/27

2:11 pm-6:55 am

1 stop23h 44m

Sydney Kingsford Smith

Mon 8/10

10:20 am-12:04 pm

1 stop18h 44m

$1,160
Quickest round-trip

MedfordSydney

MFR - SYD

MFRSYD

Medford

Wed 5/27

6:35 pm-6:55 am

1 stop19h 20m

Sydney Kingsford Smith

Mon 8/10

10:20 am-12:04 pm

1 stop18h 44m

$1,161

PortlandMelbourne

PDX - AVV

PDXAVV

Portland

Sun 6/7

5:34 pm-10:50 pm

2 stops36h 16m

Melbourne Avalon

Sun 6/14

4:40 pm-8:50 pm

2 stops21h 10m

$1,190

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 5/17

3:30 pm-11:30 am

2 stops27h 00m

Brisbane

Sun 5/31

10:00 am-9:30 am

1 stop16h 30m

$1,192

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 6/10

3:27 pm-5:00 am

1 stop20h 33m

Brisbane

Wed 6/17

2:25 pm-10:27 pm

2 stops25h 02m

$1,205

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Mon 6/1

7:05 pm-6:55 am

1 stop19h 50m

Sydney Kingsford Smith

Fri 7/31

10:20 am-1:08 pm

1 stop18h 48m

$1,211

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

Sun 8/2

2:41 pm-7:00 am

2 stops24h 19m

Sydney Kingsford Smith

Thu 8/13

10:20 am-11:04 am

1 stop16h 44m

$1,211

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

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

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 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Australia (average of $139). 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.

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 $1,150, United Airlines can have you in Australia from Oregon in 22h 35m. Oregon and Australia are separated by a distance of 7282 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 $435 and $505 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, September is the cheapest month in which you can book a flight from Oregon to Australia (average of $139). 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 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 May 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$229Average$1,259FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$550Average$1,157FlexibilityNo cancel feeOn-time85%
Qantas AirwaysCheapest$757Average$1,324FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$784Average$1,082FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$855Average$1,062FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$868Average$1,198FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$999Average$1,160FlexibilityNo cancel feeOn-time75%
Alaska AirlinesCheapest$1,140Average$1,250FlexibilityNo cancel feeOn-timeN/A

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