Which airport typically offers the quickest stopover for flights from Portland to Sydney?

Flights via Vancouver (YVR) offer the fastest connection on this route, with an average stopover time of 1h 37m. Find deals

What’s the top stopover airport for flights from Portland to Sydney?

San Francisco (SFO) – chosen by Cheapflights users on 83% of one-stop itineraries from Portland to Sydney on Cheapflights. Find deals

What’s the cheapest stopover airport for flights from Portland to Sydney?

Vancouver (YVR) is the most affordable one-stop option, with an average return flight price of $1,359. Find deals

What’s the fastest stopover option from Portland to Sydney?

Flights via Vancouver (YVR) have the shortest average one-way travel time for one-stop routes: 18h 40m. Find deals

How long is the flight from Portland to Sydney?

Airlines like United Airlines and Delta fly from Portland to Sydney in about 23h 55m. The time it takes to get you to your destination can typically vary by up to 15m. The distance from Portland to Sydney is about 12350 km. Both multi-stop and direct flights can be found to your destination and back.

What is the cheapest airline to fly from Portland to Sydney round-trip?

Cheapflights users have booked flights from Portland to Sydney round-trip from $1,253. You may be able to fly from Portland to Sydney for 26% less than the average price by searching for this airline.

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 $781 on Air Canada. Other airlines that offer cheap prices include Qantas Airways from $813 and Delta from $858 one-way.

What is the cheapest day to fly from Portland to Sydney?

Travellers seeking maximum savings on their Portland to Sydney flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

What is the cheapest day to fly return from Portland to Sydney?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 62% on your flight compared to booking on days when demand is much higher.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 26% on flights from Portland to Sydney compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,448. For sooner than that we have options available in the next 3 days from $2,339.

What is the cheapest month to fly from Portland to Sydney?

Flights from Portland to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Portland to Sydney in September, with the cheapest ticket starting at $1,229.

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.

$781+ Flights from Portland to Sydney

Q: How much does it cost for a return flight from Portland to Sydney?

Airfare is typical for this route at the moment. Portland to Sydney flights typically cost between $1,375 and $1,745 in September. The cheapest return flight price found within the last 3 days was $1,414 on Qantas Airways (23 Sept-30 Sept).

Cheapflights Tip: The best prices from Portland to Sydney Kingsford Smith are usually found in September or May, booked 88 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Sydney

Round-trip from	$1,414
One-way from	$781
Popular in	December
Cheapest in	September
Average price	$1,509

Qantas Airways
23/9-30/9
2 total stops
44h 29m total
Portland to Sydney

Search Deals

Air Canada
23/9
1 total stop
18h 40m total
Portland to Sydney

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($259 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($67 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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 12 September 2025.

Mon 15/914:50PDX - SYD

1 stop23h 15mAlaska Airlines

Sat 27/909:10SYD - PDX

1 stop27h 00mAlaska Airlines

Deal found 10/9$1,288

Sat 13/910:30PDX - SYD

1 stop27h 35mAlaska Airlines

Sat 27/909:10SYD - PDX

1 stop27h 00mAlaska Airlines

Deal found 10/9$1,341

Tue 23/914:50PDX - SYD

1 stop23h 15mQantas Airways

Tue 30/909:10SYD - PDX

1 stop21h 14mQantas Airways

Deal found 10/9$1,414

Sun 14/919:40PDX - SYD

2 stops33h 40mAir Canada

Sun 28/909:20SYD - PDX

1 stop30h 41mAir Canada

Deal found 11/9$1,440

Sun 21/914:56PDX - SYD

1 stop23h 09mAmerican Airlines

Sun 5/1010:10SYD - PDX

2 stops24h 56mAmerican Airlines

Deal found 10/9$1,451

Mon 15/914:56PDX - SYD

1 stop23h 09mQantas Airways

Wed 17/917:45SYD - PDX

1 stop19h 45mQantas Airways

Deal found 11/9$1,463

Sun 14/913:59PDX - SYD

2 stops24h 06mAmerican Airlines

Sun 28/917:45SYD - PDX

2 stops22h 26mAmerican Airlines

Deal found 11/9$1,469

Mon 15/915:23PDX - SYD

2 stops22h 42mAmerican Airlines

Sun 28/917:45SYD - PDX

2 stops22h 26mAmerican Airlines

Deal found 10/9$1,470

Sun 14/910:30PDX - SYD

1 stop28h 00mMultiple Airlines

Tue 16/917:45SYD - PDX

1 stop19h 45mMultiple Airlines

Deal found 10/9$1,473

Thu 9/1007:20PDX - SYD

2 stops28h 45mMultiple Airlines

Thu 16/1010:20SYD - PDX

1 stop30h 41mMultiple Airlines

Deal found 9/9$1,484

Best flights from Portland to Sydney
Discover carefully curated flight deals from Portland to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Tue 23/913:45PDX - SYD

1 stop24h 10mUnited Airlines

Mon 29/910:20SYD - PDX

1 stop16h 54mUnited Airlines

Deal found 11/9$1,488

Wed 24/913:40PDX - SYD

2 stops23h 55mDelta

Sun 28/909:25SYD - PDX

2 stops22h 27mDelta

Deal found 11/9$1,496

Wed 4/215:15PDX - SYD

1 stop23h 20mAir Canada

Sat 14/211:20SYD - PDX

1 stop16h 55mAir Canada

Deal found 12/9$1,589

Fri 30/117:30PDX - SYD

1 stop20h 30mQantas Airways

Sat 14/211:15SYD - PDX

1 stop24h 13mQantas Airways

Deal found 10/9$1,641

Tue 10/214:45PDX - SYD

2 stops34h 00mHawaiian Airlines

Sat 28/221:40SYD - PDX

1 stop19h 10mHawaiian Airlines

Deal found 12/9$1,644

Tue 10/219:00PDX - SYD

2 stops23h 00mMultiple Airlines

Sat 28/211:20SYD - PDX

1 stop16h 55mMultiple Airlines

Deal found 12/9$1,690

Tue 23/905:00PDX - SYD

2 stops33h 00mUnited Airlines

Tue 30/910:20SYD - PDX

1 stop16h 54mUnited Airlines

Deal found 10/9$1,494

Tue 23/909:17PDX - SYD

2 stops28h 18mDelta

Tue 30/909:25SYD - PDX

2 stops22h 27mDelta

Deal found 11/9$1,496

Fri 6/219:00PDX - SYD

2 stops24h 40mAir Canada

Mon 23/209:00SYD - PDX

2 stops19h 15mAir Canada

Deal found 11/9$1,639

Tue 23/919:35PDX - SYD

1 stop18h 20mUnited Airlines

Thu 2/1010:20SYD - PDX

1 stop19h 22mUnited Airlines

Deal found 11/9$1,564

Fri 26/910:20PDX - SYD

1 stop27h 15mDelta

Fri 3/1009:25SYD - PDX

1 stop23h 37mDelta

Deal found 11/9$1,639

Tue 23/913:45PDX - SYD

1 stop24h 10mUnited Airlines

Sat 27/910:20SYD - PDX

1 stop27h 30mUnited Airlines

Deal found 11/9$1,574

Last-minute flights from Portland to Sydney
Discover last-minute flight deals from Portland to Sydney. Data last updated 12 September 2025 and is based on user searches.

Sat 13/910:30PDX - SYD

1 stop27h 35mAlaska Airlines

Sat 27/909:10SYD - PDX

1 stop27h 00mAlaska Airlines

Deal found 10/9$1,341

Sun 14/919:40PDX - SYD

2 stops33h 40mAir Canada

Sun 28/909:20SYD - PDX

1 stop30h 41mAir Canada

Deal found 11/9$1,440

Sun 14/913:59PDX - SYD

2 stops24h 06mAmerican Airlines

Sun 28/917:45SYD - PDX

2 stops22h 26mAmerican Airlines

Deal found 11/9$1,469

Sun 14/910:30PDX - SYD

1 stop28h 00mMultiple Airlines

Tue 16/917:45SYD - PDX

1 stop19h 45mMultiple Airlines

Deal found 10/9$1,473

Mon 15/914:50PDX - SYD

1 stop23h 15mAlaska Airlines

Sat 27/909:10SYD - PDX

1 stop27h 00mAlaska Airlines

Deal found 10/9$1,288

Mon 15/914:56PDX - SYD

1 stop23h 09mQantas Airways

Sun 28/917:45SYD - PDX

1 stop20h 31mQantas Airways

Deal found 10/9$1,463

Mon 15/915:23PDX - SYD

2 stops22h 42mAmerican Airlines

Sun 28/917:45SYD - PDX

2 stops22h 26mAmerican Airlines

Deal found 10/9$1,470

Sun 21/914:56PDX - SYD

1 stop23h 09mAmerican Airlines

Sun 5/1010:10SYD - PDX

2 stops24h 56mAmerican Airlines

Deal found 10/9$1,451

Tue 23/914:50PDX - SYD

1 stop23h 15mQantas Airways

Tue 30/909:10SYD - PDX

1 stop21h 14mQantas Airways

Deal found 10/9$1,414

Thu 9/1007:20PDX - SYD

2 stops28h 45mMultiple Airlines

Thu 16/1010:20SYD - PDX

1 stop30h 41mMultiple Airlines

Deal found 9/9$1,484

One-way flights from Portland to Sydney
Search for one-way flight options from Portland to Sydney. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Tue 23/919:40PDX - SYD

1 stop18h 40mAir Canada

Deal found 11/9$781

Tue 23/917:35PDX - SYD

1 stop20h 30mQantas Airways

Deal found 10/9$813

Wed 4/319:00PDX - SYD

1 stop19h 35mAir Canada

Deal found 10/9$838

Tue 23/905:15PDX - SYD

2 stops32h 20mDelta

Deal found 10/9$858

Wed 4/315:15PDX - SYD

2 stops30h 00mMultiple Airlines

Deal found 10/9$873

Thu 1/105:00PDX - SYD

2 stops33h 05mUnited Airlines

Deal found 11/9$878

Thu 25/1205:20PDX - SYD

2 stops32h 10mDelta

Deal found 10/9$884

Sun 4/123:59PDX - SYD

2 stops38h 16mUnited Airlines

Deal found 9/9$1,244

Sun 4/116:26PDX - SYD

1 stop19h 59mQantas Airways

Deal found 9/9$1,351

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

13:45-06:55

1 stop24h 10m

Sydney Kingsford Smith

Mon 29/9

10:20-10:14

1 stop16h 54m

$1,488

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

05:00-07:00

2 stops33h 00m

Sydney Kingsford Smith

Tue 30/9

10:20-10:14

1 stop16h 54m

$1,494

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 24/9

13:40-06:35

2 stops23h 55m

Sydney Kingsford Smith

Sun 28/9

09:25-14:52

2 stops22h 27m

$1,496

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

09:17-06:35

2 stops28h 18m

Sydney Kingsford Smith

Tue 30/9

09:25-14:52

2 stops22h 27m

$1,496

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

19:35-06:55

1 stop18h 20m

Sydney Kingsford Smith

Thu 2/10

10:20-12:42

1 stop19h 22m

$1,564

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 23/9

13:45-06:55

1 stop24h 10m

Sydney Kingsford Smith

Sat 27/9

10:20-20:50

1 stop27h 30m

$1,574

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 4/2

15:15-09:35

1 stop23h 20m

Sydney Kingsford Smith

Sat 14/2

11:20-09:15

1 stop16h 55m

$1,589

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 6/2

19:00-14:40

2 stops24h 40m

Sydney Kingsford Smith

Mon 23/2

09:00-09:15

2 stops19h 15m

$1,639

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 26/9

10:20-06:35

1 stop27h 15m

Sydney Kingsford Smith

Fri 3/10

09:25-16:02

1 stop23h 37m

$1,639

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 30/1

17:30-09:00

1 stop20h 30m

Sydney Kingsford Smith

Sat 14/2

11:15-16:28

1 stop24h 13m

$1,641

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 19 results

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Sydney

Prices

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

The best time to book flights from Portland to Sydney is 88 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?

One of the essential ways to save on airfare from Portland to Sydney is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.

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

Reviews of airlines servicing Sydney

Read reviews from past customers who have flown with United Airlines from Portland to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,937 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,937 reviews

United Airlines

7.4

Good

8,937 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

How long is the flight from Portland to Sydney?
Airlines like United Airlines and Delta fly from Portland to Sydney in about 23h 55m. The time it takes to get you to your destination can typically vary by up to 15m. The distance from Portland to Sydney is about 12350 km. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Portland to Sydney round-trip?
Cheapflights users have booked flights from Portland to Sydney round-trip from $1,253. You may be able to fly from Portland to Sydney for 26% less than the average price by searching for this airline.
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 $781 on Air Canada. Other airlines that offer cheap prices include Qantas Airways from $813 and Delta from $858 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

Parramatta

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Katoomba

Penrith

Terrigal

Manly

Lithgow

Randwick

Bondi Beach

Coogee

Cronulla

Leura

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Alternative routes for Portland to Sydney

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Portland to Coolangatta flights

Direct flights to New South Wales

Other flights to Sydney

Top airline flying from Portland to Sydney

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,253	Average$1,749	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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.

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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.

Cheap flights from Portland to Sydney from $781

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Portland to Sydney Kingsford Smith are usually found in September or May, booked 88 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Sydney

Cheapest flights from Portland to SydneyExplore 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 12 September 2025.

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 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Sydney that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Sydney

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

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

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

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

What’s the top stopover airport for flights from Portland to Sydney?

What’s the fastest stopover option from Portland to Sydney?

What’s the fastest stopover option from Portland to Sydney?

Which airport typically offers the quickest stopover for flights from Portland to Sydney?

Reviews of airlines servicing Sydney

Read reviews from past customers who have flown with United Airlines from Portland to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from Portland to Sydney?

What is the cheapest airline to fly from Portland to Sydney round-trip?

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

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

How can I find direct flights from Portland to Sydney?

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

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

Travelling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Portland to Sydney

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?

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

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

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

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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 12 September 2025.