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Cheap flights from Oregon to Sydney from $851

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
30 Jun — 7 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Oregon to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Oregon to Sydney
Explore the most affordable flight options available from Oregon to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 May 2026.

Sun 31/515:30
PDX
-
SYD
1 stop22h 50m
Air Canada
Sun 14/609:20
SYD
-
PDX
1 stop17h 10m
Air Canada
Deal found 26/5$1,430
Tue 23/610:10
PDX
-
SYD
1 stop28h 10m
Air Canada
Sun 2/809:20
SYD
-
PDX
1 stop22h 31m
Air Canada
Deal found 30/5$1,475
Mon 27/717:37
PDX
-
SYD
1 stop20h 28m
Multiple Airlines
Tue 4/809:10
SYD
-
PDX
1 stop21h 34m
Multiple Airlines
Deal found 28/5$1,478
Tue 15/919:45
PDX
-
SYD
1 stop18h 35m
Air Canada
Wed 23/909:20
SYD
-
PDX
1 stop22h 31m
Air Canada
Deal found 30/5$1,489
Mon 3/807:00
PDX
-
SYD
1 stop31h 30m
Multiple Airlines
Mon 24/809:10
SYD
-
PDX
1 stop18h 40m
Multiple Airlines
Deal found 27/5$1,490
Tue 11/817:37
PDX
-
SYD
1 stop20h 28m
Multiple Airlines
Tue 1/917:50
SYD
-
PDX
1 stop20h 00m
Multiple Airlines
Deal found 30/5$1,494
Mon 9/1115:15
PDX
-
SYD
1 stop23h 20m
Air Canada
Wed 18/1111:20
SYD
-
PDX
1 stop17h 06m
Air Canada
Deal found 30/5$1,497
Tue 6/1015:30
PDX
-
SYD
1 stop22h 50m
Multiple Airlines
Mon 19/1006:00
SYD
-
PDX
2 stops21h 31m
Multiple Airlines
Deal found 30/5$1,503
Sat 25/721:45
PDX
-
SYD
1 stop39h 40m
Multiple Airlines
Mon 10/809:10
SYD
-
PDX
1 stop24h 37m
Multiple Airlines
Deal found 27/5$1,504
Sat 8/821:27
PDX
-
SYD
1 stop41h 03m
Multiple Airlines
Tue 18/821:25
SYD
-
PDX
1 stop19h 27m
Multiple Airlines
Deal found 28/5$1,508
Mon 22/619:45
PDX
-
SYD
2 stops22h 40m
Multiple Airlines
Tue 21/709:20
SYD
-
PDX
1 stop17h 11m
Multiple Airlines
Deal found 30/5$1,511
Wed 3/606:30
BOI
-
SYD
2 stops32h 50m
Air Canada
Tue 4/809:20
SYD
-
BOI
2 stops30h 35m
Air Canada
Deal found 30/5$1,578

Find flight deals from Oregon to Sydney

Keep the following information in mind while searching for Oregon to Sydney flight deals. Data was last updated 31 May 2026.

Round-trip from

$1,475

One-way from

$851

Popular in

December

Cheapest in

September

Average price

$1,597
Air Canada
  • Air Canada
  • 23/6-2/8
  • 2 total stops
  • 50h 41m total
  • Oregon to Sydney
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 46h 43m total
  • Oregon to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($310 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($102 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Oregon to Sydney 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 647,157 searches. Data last updated 31 May 2026.
Use the filters below to find and compare flights from Oregon to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 8/8

23:59-06:55

2 stops37h 56m

Sydney Kingsford Smith

Tue 18/8

09:30-17:50

2 stops25h 20m

$1,621

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 16/10

17:45-06:25

1 stop18h 40m

Sydney Kingsford Smith

Sun 25/10

08:30-13:35

2 stops23h 05m

$1,689
Fastest return journey

MedfordSydney

MFR - SYD

MFRSYD

Medford

Sun 18/10

18:34-07:55

1 stop19h 21m

Sydney Kingsford Smith

Thu 22/10

11:20-11:34

1 stop18h 14m

$1,710

MedfordSydney

MFR - SYD

MFRSYD

Medford

Thu 29/10

14:03-09:15

1 stop25h 12m

Sydney Kingsford Smith

Mon 2/11

12:10-11:34

1 stop18h 24m

$1,710

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

Thu 29/10

18:48-09:15

1 stop20h 27m

Sydney Kingsford Smith

Mon 2/11

12:10-11:51

1 stop18h 41m

$1,710

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

Thu 5/11

13:55-09:15

1 stop24h 20m

Sydney Kingsford Smith

Mon 9/11

11:20-15:07

1 stop22h 47m

$1,710

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

Sat 17/10

19:00-07:55

1 stop18h 55m

Sydney Kingsford Smith

Sat 31/10

10:20-15:07

1 stop22h 47m

$1,710

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Fri 7/8

18:49-06:55

1 stop19h 06m

Sydney Kingsford Smith

Tue 11/8

10:20-15:34

1 stop22h 14m

$1,710

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 8/9

13:57-06:55

1 stop23h 58m

Sydney Kingsford Smith

Tue 15/9

10:20-18:04

1 stop24h 44m

$1,710

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 8/9

12:47-06:55

2 stops25h 08m

Sydney Kingsford Smith

Tue 15/9

10:20-21:17

2 stops27h 57m

$1,715

Flights are sorted by cheapest return flights first.

Deals found on 30/5

Showing 1-10 of 46 resultsSorted by cheapest first
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Best time to book a flight from Oregon to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Oregon with our price prediction graph.
Estimated return 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 Sydney

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Sydney (average of $193). Flying from Oregon to Sydney in March is currently the most expensive (average of $1,426). 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 much does it cost for a return flight from Oregon to Sydney?

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

The price you pay for your flight from Oregon to Sydney 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 Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Oregon?

    For a flight from Oregon to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city.

  • How long is the flight from Oregon to Sydney?

    For as low as $1,689, United Airlines can have you in Sydney from Oregon in 18h 40m. There are 12350 km between Oregon and Sydney. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Oregon to Sydney?

    While some choose either Boise Air Term. Gowen Fld - Sydney Kingsford Smith or Eugene - Sydney Kingsford Smith, Portland - Sydney Kingsford Smith is the most popular route from Oregon to Sydney.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Oregon to Sydney (average of $193). Flying from Oregon to Sydney in March is currently the most expensive (average of $1,426). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Cronulla
Manly
Terrigal
Lithgow
Bondi Beach
Leura
Randwick
Coogee

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Oregon to Sydney

Discover the top airline that operate flights from Oregon to Sydney. 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 647,157 searches. Data last updated 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,334Average$2,478FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Oregon to Sydney?

Cheapflights makes it easy to find Oregon to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Oregon to Sydney?

Millions of users choose and trust Cheapflights to book the best flight deals from Oregon to Sydney for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Oregon to Sydney with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Oregon to Sydney flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Oregon to Sydney become cheaper?

Yes, Cheapflights offers price alerts on Oregon to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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