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$461+ 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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
Mar 1 — Mar 81
Sun 3/1
Sun 3/8
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 January 30, 2026.

This Expedia deal was found by Cheapflights users on 1/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/247:05 pm
PDX
-
MEL
2 stops24h 10m
Multiple Airlines
Sat 3/147:10 am
MEL
-
PDX
2 stops20h 05m
Multiple Airlines
Deal found 1/29$818
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Thu 3/53:15 pm
PDX
-
BNE
1 stop23h 30m
Air Canada
Thu 3/199:45 am
BNE
-
PDX
1 stop16h 30m
Air Canada
Deal found 1/28$866
This Air Canada deal was found by Cheapflights users on 1/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/223:15 pm
PDX
-
BNE
1 stop23h 30m
Air Canada
Sun 4/2610:00 am
BNE
-
PDX
1 stop25h 30m
Air Canada
Deal found 1/29$874
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Thu 3/57:05 pm
PDX
-
BNE
2 stops24h 20m
Multiple Airlines
Thu 3/199:45 am
BNE
-
PDX
1 stop25h 45m
Multiple Airlines
Deal found 1/28$894
This oojo deal was found by Cheapflights users on 1/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:30 pm
PDX
-
BNE
2 stops32h 40m
Qantas Airways
Mon 3/97:40 pm
BNE
-
PDX
1 stop21h 02m
Qantas Airways
Deal found 1/29$903
This Air Canada deal was found by Cheapflights users on 1/28. 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 3/143:15 pm
PDX
-
BNE
2 stops32h 40m
Air Canada
Sat 3/219:45 am
BNE
-
PDX
1 stop25h 45m
Air Canada
Deal found 1/28$934
This FlightHub deal was found by Cheapflights users on 1/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:45 pm
PDX
-
BNE
2 stops22h 45m
Multiple Airlines
Sun 5/1710:00 am
BNE
-
PDX
1 stop16h 30m
Multiple Airlines
Deal found 1/28$938
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:39 pm
PDX
-
MEL
1 stop20h 51m
Multiple Airlines
Tue 3/312:00 pm
MEL
-
PDX
1 stop20h 25m
Multiple Airlines
Deal found 1/27$953
This oojo deal was found by Cheapflights users on 1/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/62:37 pm
PDX
-
BNE
1 stop21h 23m
Multiple Airlines
Fri 4/178:35 pm
BNE
-
PDX
1 stop20h 23m
Multiple Airlines
Deal found 1/29$956
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/242:30 pm
PDX
-
MEL
1 stop24h 00m
Qantas Airways
Sat 3/712:00 pm
MEL
-
PDX
1 stop24h 13m
Qantas Airways
Deal found 1/27$956
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/55:38 pm
PDX
-
MEL
1 stop20h 07m
American Airlines
Sat 4/189:45 am
MEL
-
PDX
1 stop19h 54m
American Airlines
Deal found 1/27$958
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Mon 3/97:05 pm
PDX
-
ADL
2 stops24h 05m
Multiple Airlines
Mon 3/166:10 am
ADL
-
PDX
2 stops29h 50m
Multiple Airlines
Deal found 1/28$959

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 January 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$818
(Expedia)

One-way from

$461
(Kiwi.com)

Popular in

December

Cheapest in

June

Average price

$1,161
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. 13% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($56 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 30, 2026.
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

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:05 pm-2:15 pm

2 stops24h 10m

Melbourne

Sat 3/14

7:10 am-9:15 am

2 stops20h 05m

$818

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 3/8

5:39 pm-9:30 am

1 stop21h 51m

Melbourne

Mon 3/16

12:00 pm-8:53 pm

1 stop26h 53m

$836

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 3/5

7:05 pm-1:25 pm

2 stops24h 20m

Brisbane

Thu 3/19

9:45 am-6:30 pm

1 stop25h 45m

$894

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 5/13

10:10 am-7:05 am

1 stop27h 55m

Brisbane

Wed 5/27

10:00 am-9:30 am

1 stop16h 30m

$909

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 5/3

7:45 pm-11:30 am

2 stops22h 45m

Brisbane

Sun 5/17

10:00 am-9:30 am

1 stop16h 30m

$938

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 5/10

2:50 pm-6:45 am

1 stop22h 55m

Melbourne

Sat 5/16

9:45 am-1:43 pm

1 stop20h 58m

$953

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 2/23

3:20 pm-8:45 am

1 stop23h 25m

Brisbane

Mon 4/27

10:00 am-6:30 pm

1 stop25h 30m

$961

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 2/25

7:05 pm-8:45 am

1 stop19h 40m

Brisbane

Wed 4/29

10:00 am-9:15 am

1 stop16h 15m

$961

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sun 3/8

3:10 pm-9:30 am

2 stops24h 20m

Melbourne

Mon 3/16

4:05 pm-11:09 pm

1 stop25h 04m

$963

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

6:25 am-9:30 am

1 stop32h 05m

Melbourne

Sun 6/14

9:45 am-9:29 pm

1 stop28h 44m

$965

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

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 $504). Flying from Oregon to Australia in April is currently the most expensive (average of $933). 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 $1,116, Air Canada can have you in Australia from Oregon in 20h 01m. Oregon and Australia are separated by a distance of 8275 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 $424 and $428 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 April is currently the most expensive (average of $933). 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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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 January 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$497Average$1,069FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$550Average$1,157FlexibilityNo cancel feeOn-time85%
Qantas AirwaysCheapest$757Average$1,403FlexibilityNo cancel feeOn-time74%
Air CanadaCheapest$840Average$1,131FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$855Average$1,058FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$871Average$1,203FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$999Average$1,183FlexibilityNo cancel feeOn-time75%

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