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Cheap flights from Oregon to Sydney from $642

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
7 Mar — 14 Mar1
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 5 February 2026.

Fri 6/310:08
PDX
-
SYD
1 stop26h 17m
Multiple Airlines
Fri 13/314:00
SYD
-
PDX
2 stops39h 52m
Multiple Airlines
Deal found 4/2$1,269
Fri 6/310:08
PDX
-
SYD
1 stop26h 17m
Multiple Airlines
Fri 20/314:00
SYD
-
PDX
2 stops39h 52m
Multiple Airlines
Deal found 5/2$1,275
Mon 23/206:25
PDX
-
SYD
2 stops43h 25m
Qantas Airways
Mon 2/311:20
SYD
-
PDX
1 stop24h 53m
Qantas Airways
Deal found 3/2$1,302
Mon 23/206:25
PDX
-
SYD
2 stops43h 25m
Qantas Airways
Sat 7/311:20
SYD
-
PDX
1 stop24h 53m
Qantas Airways
Deal found 2/2$1,303
Thu 26/206:25
PDX
-
SYD
1 stop30h 00m
Qantas Airways
Tue 10/319:15
SYD
-
PDX
2 stops44h 47m
Qantas Airways
Deal found 2/2$1,313
Tue 21/417:49
PDX
-
SYD
1 stop20h 41m
Multiple Airlines
Thu 7/513:15
SYD
-
PDX
2 stops39h 42m
Multiple Airlines
Deal found 5/2$1,354
Fri 1/509:53
PDX
-
SYD
1 stop28h 37m
Multiple Airlines
Fri 15/513:15
SYD
-
PDX
2 stops37h 17m
Multiple Airlines
Deal found 4/2$1,357
Mon 20/409:53
PDX
-
SYD
1 stop28h 37m
Multiple Airlines
Mon 4/513:15
SYD
-
PDX
2 stops37h 23m
Multiple Airlines
Deal found 4/2$1,359
Sun 15/206:25
PDX
-
SYD
2 stops54h 10m
Qantas Airways
Sun 15/311:20
SYD
-
PDX
1 stop28h 32m
Qantas Airways
Deal found 2/2$1,363
Fri 1/509:53
PDX
-
SYD
1 stop28h 37m
Multiple Airlines
Sat 16/513:15
SYD
-
PDX
2 stops39h 42m
Multiple Airlines
Deal found 4/2$1,366
Sun 26/409:53
PDX
-
SYD
1 stop28h 37m
Multiple Airlines
Thu 7/513:15
SYD
-
PDX
2 stops39h 42m
Multiple Airlines
Deal found 2/2$1,383
Sat 4/412:40
EUG
-
SYD
2 stops25h 10m
Delta
Thu 23/409:15
SYD
-
EUG
2 stops31h 32m
Delta
Deal found 2/2$1,400

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 5 February 2026.

Round-trip from

$1,269

One-way from

$642

Popular in

December

Cheapest in

June

Average price

$1,637
6/3-13/3
  • 6/3-13/3
  • 3 total stops
  • 66h 09m total
  • Oregon to Sydney
Search Deals
1/5
  • 1/5
  • 2 total stops
  • 32h 57m total
  • Oregon to Sydney
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($381 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($114 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 5 February 2026.
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

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 20/4

09:53-07:30

1 stop28h 37m

Sydney Kingsford Smith

Mon 4/5

13:15-09:38

2 stops37h 23m

$1,359

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Sun 5/4

11:40-06:50

2 stops26h 10m

Sydney Kingsford Smith

Wed 22/4

09:15-23:10

2 stops30h 55m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Sat 4/4

05:15-07:50

2 stops32h 35m

Sydney Kingsford Smith

Wed 22/4

09:15-23:10

2 stops30h 55m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Wed 8/4

06:08-06:50

2 stops31h 42m

Sydney Kingsford Smith

Sun 19/4

09:15-17:04

2 stops24h 49m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Mon 6/4

06:08-06:50

2 stops31h 42m

Sydney Kingsford Smith

Fri 24/4

09:15-17:04

2 stops24h 49m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Wed 8/4

06:08-06:50

2 stops31h 42m

Sydney Kingsford Smith

Fri 24/4

09:15-17:04

2 stops24h 49m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Wed 8/4

06:08-06:50

2 stops31h 42m

Sydney Kingsford Smith

Mon 20/4

09:15-17:04

2 stops24h 49m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Sun 5/4

11:40-06:50

2 stops26h 10m

Sydney Kingsford Smith

Fri 24/4

09:15-23:10

2 stops30h 55m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Mon 6/4

12:40-06:50

2 stops25h 10m

Sydney Kingsford Smith

Sat 25/4

09:15-23:10

2 stops30h 55m

$1,400

EugeneSydney

EUG - SYD

EUGSYD

Eugene

Sun 5/4

12:40-06:50

2 stops25h 10m

Sydney Kingsford Smith

Sat 25/4

09:15-23:10

2 stops30h 55m

$1,400

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 49 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, February is the cheapest month in which you can book a flight from Oregon to Sydney (average of $719). Flying from Oregon to Sydney in December is currently the most expensive (average of $1,634). 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?

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 $1,661, Delta can have you in Sydney from Oregon in 19h 15m. 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 Medford - Sydney Kingsford Smith or Boise Air Term. Gowen Fld - 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, February is the cheapest month in which you can book a flight from Oregon to Sydney (average of $719). Flying from Oregon to Sydney in December is currently the most expensive (average of $1,634). 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
Manly
Katoomba
Terrigal
Lithgow
Leura
Coogee
Cronulla
Randwick
Bondi Beach

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 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 5 February 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,309Average$2,539FlexibilityNo 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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