Find flights
When to book
Airlines
FAQs

Cheap flights from Portland to Sydney from $670

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SYD
26 Nov — 3 Dec1
1 adult

The best prices from Portland to Sydney Kingsford Smith are usually found in February or May, booked 79 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Portland to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 November 2024.

Round-trip from

$1,299

One-way from

$670

Popular in

December

Cheapest in

February
Alaska Airlines
  • Alaska Airlines
  • 31/1-20/2
  • 2 total stops
  • 36h 15m total
  • Portland to Sydney
Search Deals
27/2
  • 27/2
  • 2 total stops
  • 34h 40m total
  • Portland to Sydney
Search Deals
High demand for flights, 29% potential price rise
Search Deals
Best time to find cheap flights, 11% potential price drop
Search Deals

Find flight deals from Portland to Sydney

Cheapest flights from Portland to Sydney
Explore the most affordable flight options available from Portland to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Thu 21/1110:26PDX - SYD
1 stop27h 09mDelta
Wed 27/1111:05SYD - PDX
1 stop20h 01mDelta
Deal found 20/11$1,592
Tue 31/1214:48PDX - SYD
2 stops44h 32mUnited Airlines
Fri 23/510:20SYD - PDX
1 stop25h 16mUnited Airlines
Deal found 19/11$1,609
Tue 3/1208:06PDX - SYD
1 stop40h 39mAlaska Airlines
Sun 8/1221:40SYD - PDX
1 stop19h 22mAlaska Airlines
Deal found 19/11$1,695
Tue 31/1215:25PDX - SYD
1 stop20h 30mAir Canada
Fri 23/509:20SYD - PDX
1 stop25h 55mAir Canada
Deal found 19/11$2,288
Sun 24/1110:10PDX - SYD
1 stop28h 25mMultiple Airlines
Tue 26/1112:25SYD - PDX
2 stops24h 59mMultiple Airlines
Deal found 20/11$2,637
Fri 13/1208:06PDX - SYD
1 stop40h 39mHawaiian Airlines
Tue 31/1221:40SYD - PDX
1 stop18h 20mHawaiian Airlines
Deal found 20/11$3,122
Fri 29/1106:00PDX - SYD
3 stops56h 10mAir Tahiti Nui
Thu 5/1207:05SYD - PDX
3 stops34h 14mAir Tahiti Nui
Deal found 19/11$3,517
Fri 6/1211:56PDX - SYD
2 stops31h 59mQantas Airways
Wed 1/111:15SYD - PDX
1 stop24h 40mQantas Airways
Deal found 20/11$3,642
Sun 24/1112:30PDX - SYD
2 stops29h 00mFiji Airways
Thu 28/1114:00SYD - PDX
3 stops50h 14mFiji Airways
Deal found 20/11$4,301
Sat 23/1100:43PDX - SYD
2 stops47h 07mQatar Airways
Thu 28/1121:40SYD - PDX
2 stops37h 53mQatar Airways
Deal found 20/11$5,193
Fri 22/1106:20PDX - SYD
2 stops53h 10mLATAM Airlines
Thu 28/1111:40SYD - PDX
3 stops43h 26mLATAM Airlines
Deal found 20/11$5,716
Tue 17/1210:25PDX - SYD
3 stops37h 05mTurkish Airlines
Tue 24/1220:40SYD - PDX
3 stops45h 46mTurkish Airlines
Deal found 20/11$12,316

Find flights from Portland to Sydney within your budget

Customise your flight search to find flights from Portland 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 719,399 searches. Data last updated 21 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 31/1

07:00-19:45

1 stop17h 45m

Sydney Kingsford Smith

Thu 20/2

21:40-21:10

1 stop18h 30m

$1,299

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 23/2

07:00-15:35

1 stop37h 35m

Sydney Kingsford Smith

Mon 3/3

17:25-21:35

2 stops23h 10m

$1,345

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 25/2

15:25-09:35

1 stop23h 10m

Sydney Kingsford Smith

Thu 13/3

10:20-18:24

1 stop26h 04m

$1,440

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 3/4

08:40-19:45

1 stop41h 05m

Sydney Kingsford Smith

Sun 20/4

21:40-19:55

1 stop39h 15m

$1,453

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 3/5

15:41-07:00

1 stop22h 19m

Sydney Kingsford Smith

Sat 17/5

10:20-18:36

1 stop25h 16m

$1,506

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 25/4

17:10-06:35

1 stop20h 25m

Sydney Kingsford Smith

Sat 3/5

09:25-16:11

1 stop23h 46m

$1,522

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/2

15:37-09:00

1 stop22h 23m

Sydney Kingsford Smith

Mon 3/3

11:15-15:13

1 stop22h 58m

$1,861

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 23/4

13:35-07:00

1 stop24h 25m

Sydney Kingsford Smith

Mon 5/5

11:50-18:15

2 stops23h 25m

$2,041

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 27/2

09:55-15:35

2 stops34h 40m

$670

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 28/2

19:05-09:35

1 stop19h 30m

$817

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 20 results
1
2

Best time to book a flight from Portland to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Portland 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.

Travel insights for flights from Portland to Sydney

Get recent, data-driven insights about flights from Portland to Sydney including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Portland to Sydney. Price data was last updated on 15 November 2024.

The best time to book flights from Portland to Sydney is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Portland to Sydney (average of $129). Flying from Portland 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 PDX to SYD?

Find hourly flight availability from Portland 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 21 November 2024.

One of the essential ways to save on airfare from Portland to Sydney is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

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 21 November 2024.
To help decide which airline to fly from Portland to Sydney, see what other customers have to say about United Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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
68 reviews
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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.

ANA
8.4
Very Good
833 reviews
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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.

Fiji Airways
8.1
Very Good
201 reviews
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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
8.1
Very Good
531 reviews
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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
8,756 reviews
Air Tahiti Nui
8.7
Very Good
68 reviews
Check prices

Crew

9.0

Comfort

8.0

Overall

8.7

Entertainment

7.2

Food

7.7

Boarding

8.5

Reviews

1 / 2

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 Portland to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Portland to Sydney round-trip?

    Cheapflights users have booked flights from Portland to Sydney round-trip from $1,299. Other airlines that can offer you cheap pricing are Air Canada, from $1,440, and Hawaiian Airlines, from $1,453. You may be able to fly from Portland to Sydney for 25% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Portland to Sydney one-way?

    One-way options have recently been found by users for as low as $817 on Air Canada. Other airlines that offer cheap prices include Delta from $837 and United Airlines from $855 one-way.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Portland to Sydney (average of $129). Flying from Portland 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

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.

Alternative routes for Portland to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Sydney flights
Eugene to Sydney flights
Portland to Coolangatta flights

Top airline flying from Portland to Sydney

Discover the top airline that operate flights from Portland 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 719,399 searches. Data last updated 21 November 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,243Average$1,787FlexibilityNo 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 Portland to Sydney?

Deals for Portland to Sydney flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Sydney.

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Portland today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines