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Cheap flights from Oregon to Sydney from $674

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
6 maj — 13 maj1
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 1 maj 2025.

Round-trip from

$1,366

One-way from

$674

Popular in

December

Cheapest in

February

Average price

$1,813
United Airlines
  • United Airlines
  • 23/9-30/9
  • 2 total stops
  • 46h 48m total
  • Oregon to Sydney
Search Deals
United Airlines
  • United Airlines
  • 18/10
  • 2 total stops
  • 29h 25m total
  • Oregon to Sydney
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($426 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($90 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 1 maj 2025.

ons. 19/1114:43BOI - SYD
2 stops24h 32mUnited Airlines
man. 1/1211:20SYD - BOI
1 stop20h 10mUnited Airlines
Deal found 30/4$1,366
søn. 22/613:55RDM - SYD
1 stop24h 00mUnited Airlines
fre. 11/710:20SYD - RDM
1 stop24h 51mUnited Airlines
Deal found 30/4$1,397
lør. 9/819:46PDX - SYD
1 stop18h 09mUnited Airlines
lør. 30/810:20SYD - PDX
1 stop25h 12mUnited Airlines
Deal found 30/4$1,510
søn. 17/813:37PDX - SYD
1 stop24h 18mVirgin Australia
lør. 30/810:20SYD - PDX
1 stop25h 12mVirgin Australia
Deal found 29/4$1,613
ons. 7/505:00MFR - SYD
2 stops57h 00mUnited Airlines
ons. 14/510:20SYD - MFR
2 stops27h 58mUnited Airlines
Deal found 30/4$1,751
ons. 7/508:05PDX - SYD
1 stop18h 40mAlaska Airlines
lør. 17/521:40SYD - PDX
1 stop17h 15mAlaska Airlines
Deal found 1/5$1,810
fre. 9/512:09PDX - SYD
1 stop26h 21mMultiple Airlines
fre. 23/516:20SYD - PDX
1 stop31h 00mMultiple Airlines
Deal found 30/4$1,827
tor. 23/1019:40PDX - SYD
2 stops43h 05mAir New Zealand
man. 17/1113:55SYD - PDX
2 stops25h 10mAir New Zealand
Deal found 30/4$1,890
ons. 7/508:05PDX - SYD
1 stop18h 40mHawaiian Airlines
tir. 20/521:40SYD - PDX
1 stop25h 40mHawaiian Airlines
Deal found 1/5$1,998
ons. 16/712:35PDX - SYD
1 stop25h 00mDelta
søn. 27/709:25SYD - PDX
1 stop26h 29mDelta
Deal found 1/5$2,018
søn. 22/605:55RDM - SYD
2 stops31h 40mDelta
ons. 9/709:25SYD - RDM
2 stops30h 29mDelta
Deal found 1/5$2,026
lør. 7/610:30PDX - SYD
1 stop27h 35mQantas Airways
man. 16/609:10SYD - PDX
1 stop30h 20mQantas Airways
Deal found 30/4$2,101

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 1 maj 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

BoiseSydney

BOI - SYD

BOISYD

Boise Air Term. Gowen Fld

tir. 23/9

14:45-06:55

1 stop24h 10m

Sydney Kingsford Smith

tir. 30/9

10:20-16:58

1 stop22h 38m

$1,366

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

søn. 22/6

13:55-06:55

1 stop24h 00m

Sydney Kingsford Smith

fre. 11/7

10:20-18:11

1 stop24h 51m

$1,397

PortlandSydney

PDX - SYD

PDXSYD

Portland

lør. 9/8

19:46-06:55

1 stop18h 09m

Sydney Kingsford Smith

lør. 30/8

10:20-18:32

1 stop25h 12m

$1,510

PortlandSydney

PDX - SYD

PDXSYD

Portland

søn. 17/8

13:37-06:55

1 stop24h 18m

Sydney Kingsford Smith

lør. 30/8

10:20-18:32

1 stop25h 12m

$1,613

PortlandSydney

PDX - SYD

PDXSYD

Portland

fre. 30/5

08:00-19:45

1 stop18h 45m

Sydney Kingsford Smith

fre. 6/6

21:40-21:55

1 stop17h 15m

$1,810

PortlandSydney

PDX - SYD

PDXSYD

Portland

lør. 7/6

13:19-07:30

1 stop25h 11m

Sydney Kingsford Smith

man. 16/6

16:20-16:20

1 stop17h 00m

$1,846

PortlandSydney

PDX - SYD

PDXSYD

Portland

tor. 23/10

19:40-08:45

2 stops43h 05m

Sydney Kingsford Smith

man. 17/11

13:55-20:05

2 stops25h 10m

$1,890

PortlandSydney

PDX - SYD

PDXSYD

Portland

ons. 16/7

12:35-06:35

1 stop25h 00m

Sydney Kingsford Smith

søn. 27/7

09:25-18:54

1 stop26h 29m

$2,018

RedmondSydney

RDM - SYD

RDMSYD

Bend/Redmond

søn. 22/6

05:55-06:35

2 stops31h 40m

Sydney Kingsford Smith

ons. 9/7

09:25-22:54

2 stops30h 29m

$2,026

PortlandSydney

PDX - SYD

PDXSYD

Portland

lør. 7/6

10:30-07:05

1 stop27h 35m

Sydney Kingsford Smith

man. 16/6

09:10-22:30

1 stop30h 20m

$2,101

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 32 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 1 maj 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 1 maj 2025.
To help decide which airline to fly from Oregon to Sydney, see what other customers have to say about Air Tahiti Nui, Singapore Airlines and Delta. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
63 reviews
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Singapore Airlines
8.1
Very Good
1,292 reviews
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very Good
7,934 reviews
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air New Zealand
8.0
Very Good
472 reviews
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Alaska Airlines
8.0
Very Good
9,972 reviews
Air Tahiti Nui
8.7
Very Good
63 reviews
Check prices

Boarding

8.7

Overall

8.7

Entertainment

7.3

Crew

9.1

Comfort

8.1

Food

7.8

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

  • 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 $674 on United Airlines. Other airlines that offer cheap prices include Virgin Australia from $699 and Qantas Airways from $2,996 one-way.

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

    While some choose either Boise Air Term. Gowen Fld - Sydney Kingsford Smith or Bend/Redmond - 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, 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 Oregon?

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

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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 1 maj 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,173Average$1,954FlexibilityNo 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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