Cheap flights from Oregon to Sydney from $661

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
9 Sep — 16 Sep1
1 adult

Cheap flight deals from Oregon to Sydney

Keep the following information in mind while searching for Oregon to Sydney flight deals. Data was last updated 4 September 2025.

Round-trip from

$1,370

One-way from

$661

Popular in

December

Cheapest in

September

Average price

$1,532
United Airlines
  • United Airlines
  • 26/9-3/10
  • 4 total stops
  • 77h 27m total
  • Oregon to Sydney
United Airlines
  • United Airlines
  • 2/3
  • 2 total stops
  • 31h 00m total
  • Oregon to Sydney
Highest demand for flights based on searches. 9% potential increase in price ($266 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($68 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Oregon to Sydney

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 4 September 2025.

Thu 30/1013:54RDM - SYD
1 stop25h 21mUnited Airlines
Fri 7/1112:10SYD - RDM
1 stop25h 05mUnited Airlines
Deal found 3/9$1,342
Thu 30/1005:00RDM - SYD
2 stops32h 00mUnited Airlines
Thu 13/1111:20SYD - RDM
1 stop22h 48mUnited Airlines
Deal found 3/9$1,350
Sat 22/1106:00RDM - SYD
1 stop32h 15mUnited Airlines
Sat 6/1211:50SYD - RDM
2 stops44h 07mUnited Airlines
Deal found 3/9$1,368
Fri 26/913:08EUG - SYD
2 stops48h 52mUnited Airlines
Fri 3/1009:30SYD - EUG
2 stops28h 35mUnited Airlines
Deal found 3/9$1,370
Thu 30/1019:51RDM - SYD
1 stop19h 24mUnited Airlines
Mon 17/1112:10SYD - RDM
1 stop19h 05mUnited Airlines
Deal found 3/9$1,373
Sat 25/1013:16RDM - SYD
2 stops25h 49mUnited Airlines
Mon 10/1112:10SYD - RDM
1 stop19h 05mUnited Airlines
Deal found 3/9$1,381
Tue 23/919:40PDX - SYD
1 stop18h 40mAir Canada
Tue 30/909:20SYD - PDX
1 stop26h 26mAir Canada
Deal found 2/9$1,391
Wed 29/1019:51RDM - SYD
1 stop19h 24mUnited Airlines
Tue 18/1112:10SYD - RDM
1 stop19h 05mUnited Airlines
Deal found 3/9$1,404
Sun 26/1019:51RDM - SYD
1 stop19h 24mUnited Airlines
Sun 9/1112:10SYD - RDM
2 stops27h 57mUnited Airlines
Deal found 3/9$1,411
Mon 29/1212:50MFR - SYD
2 stops46h 30mUnited Airlines
Mon 30/310:30SYD - MFR
2 stops44h 39mUnited Airlines
Deal found 3/9$1,453
Sat 6/915:25PDX - SYD
1 stop22h 55mAir Canada
Wed 17/909:20SYD - PDX
1 stop26h 26mAir Canada
Deal found 3/9$1,463
Thu 30/1013:54RDM - SYD
1 stop25h 21mUnited Airlines
Wed 5/1112:10SYD - RDM
1 stop25h 05mUnited Airlines
Deal found 3/9$1,468

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 4 September 2025.
Use the filters below to find and compare flights from Oregon to Sydney that are best for you.

Fly from

Oregon

Fly to

Sydney

Route

Depart

Return

Price

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Fri 26/9

13:08-07:00

2 stops48h 52m

Sydney Kingsford Smith

Fri 3/10

09:30-21:05

2 stops28h 35m

$1,370

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Tue 10/2

05:00-06:20

2 stops30h 20m

Sydney Kingsford Smith

Sat 28/2

12:10-21:38

2 stops28h 28m

$1,379

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

19:40-07:20

1 stop18h 40m

Sydney Kingsford Smith

Tue 30/9

09:20-14:46

1 stop22h 26m

$1,390

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 15/9

17:35-07:05

1 stop20h 30m

Sydney Kingsford Smith

Wed 4/2

11:15-16:28

1 stop24h 13m

$1,434

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 22/9

14:56-07:05

1 stop23h 09m

Sydney Kingsford Smith

Tue 30/9

09:10-13:24

1 stop21h 14m

$1,434

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 15/9

15:25-10:40

2 stops26h 15m

Sydney Kingsford Smith

Wed 4/2

08:30-09:15

2 stops19h 45m

$1,442

MedfordSydney

MFR - SYD

MFRSYD

Medford

Mon 29/12

12:50-06:20

2 stops46h 30m

Sydney Kingsford Smith

Mon 30/3

10:30-13:09

2 stops44h 39m

$1,453

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

19:40-11:25

2 stops22h 45m

Sydney Kingsford Smith

Tue 30/9

07:00-09:21

2 stops19h 21m

$1,482

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 30/9

19:40-07:20

1 stop18h 40m

Sydney Kingsford Smith

Tue 7/10

10:20-09:20

1 stop17h 00m

$1,503

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

06:15-07:20

1 stop32h 05m

Sydney Kingsford Smith

Sun 28/9

09:20-09:21

1 stop17h 01m

$1,503

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 48 results
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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, May is the cheapest month in which you can book a flight from Oregon to Sydney (average of $129). Flying from Oregon to Sydney in October is currently the most expensive (average of $171). 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.

What is the cheapest time of day to fly from OR to SYD?

Find hourly flight availability from Oregon to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Sydney as you normally would.

How much does it cost for a return flight from Oregon to Sydney?

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 $1,390, 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 cheapest airlines to fly from Oregon to Sydney one-way?

    One-way options have recently been found by users for as low as $661 on United Airlines. Other airlines that offer cheap prices include Qantas Airways from $825 and Air Canada from $851 one-way.

  • What are the most popular routes 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, May is the cheapest month in which you can book a flight from Oregon to Sydney (average of $129). Flying from Oregon to Sydney in October is currently the most expensive (average of $171). 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
Katoomba
Penrith
Terrigal
Manly
Lithgow
Randwick
Bondi Beach
Coogee
Cronulla
Leura

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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 4 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,272Average$1,775FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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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