Which airport is the most popular layover for flights between Portland and Sydney?

Vancouver (YVR) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Sydney?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Sydney from Portland according to our data. Air Canada is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 7 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Portland to Sydney?

Flights via Los Angeles (LAX) offer the lowest average round-trip price of $1,322.

What is the cheapest airline that flies from Portland to Sydney Kingsford Smith?

Qantas Airways is the most popular carrier operating from Portland to Sydney Kingsford Smith

Which layover airport has the shortest travel time from Portland to Sydney?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 18h 27m.

Which layover airport has the shortest connection time from Portland to Sydney?

Vancouver (YVR) has the shortest average layover time for this route: 2h 05m.

When did momondo last update prices for flights from Portland Airport to Sydney Kingsford Smith Airport?

Prices for flights from Portland Airport to Sydney Kingsford Smith Airport are updated daily.

How many operators does momondo search for flights from Portland Airport to Sydney Kingsford Smith Airport?

As of November 2025, there are 7 operators available to choose from for flights from Portland Airport to Sydney Kingsford Smith Airport.

How old do you have to be to fly from Portland Airport to Sydney Kingsford Smith Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$586 Cheap Flights from Portland to Sydney in 2025/26

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3:15 pm - 9:35 amPDX-SYD

23h 20m1 stop

11:20 am - 6:30 pmSYD-PDX

26h 10m1 stop

$951Air Canada

Find Deal

Fri, Feb 6 - Mon, Feb 23

4:51 pm - 6:10 amPDX-SYD

18h 19m1 stop

7:05 am - 5:11 pmSYD-PDX

29h 06m2 stops

$957Qantas Airways

Find Deal

Fri, Jan 30 - Sat, Feb 14

7:00 pm - 9:35 amPDX-SYD

19h 35m1 stop

9:00 am - 9:15 amSYD-PDX

19h 15m2 stops

$966Air Canada

Find Deal

Fri, Feb 6 - Mon, Feb 23

7:00 pm - 4:40 pmPDX-SYD

26h 40m2 stops

11:20 am - 9:15 amSYD-PDX

16h 55m1 stop

$970Air Canada

Find Deal

Thu, Jan 29 - Sun, Feb 15

3:22 pm - 9:00 amPDX-SYD

22h 38m1 stop

7:05 am - 5:11 pmSYD-PDX

29h 06m2 stops

$978Qantas Airways

Find Deal

Tue, Jan 27 - Tue, Feb 17

3:15 pm - 6:05 pmPDX-SYD

31h 50m2 stops

9:00 am - 9:15 amSYD-PDX

19h 15m2 stops

$998Air Canada

Find Deal

Fri, Feb 6 - Mon, Feb 23

6:20 am - 9:00 amPDX-SYD

31h 40m1 stop

7:15 pm - 1:35 pmSYD-PDX

37h 20m2 stops

$1,009Qantas Airways

Find Deal

Mon, Dec 29 - Tue, Jan 13

4:26 pm - 9:20 amPDX-SYD

21h 54m2 stops

9:25 pm - 8:48 pmSYD-PDX

18h 23m1 stop

$1,011Qantas Airways

Find Deal

Mon, Dec 29 - Tue, Jan 13

3:15 pm - 2:40 pmPDX-SYD

28h 25m2 stops

11:20 am - 2:40 pmSYD-PDX

22h 20m1 stop

$1,013Air Canada

Find Deal

Thu, Jan 22 - Fri, Feb 6

4:51 pm - 6:10 amPDX-SYD

18h 19m1 stop

8:00 am - 5:11 pmSYD-PDX

28h 11m2 stops

$1,014Qantas Airways

Find Deal

Fri, Feb 6 - Mon, Feb 23

Qantas Airways flights from Portland to Sydney

Our best Qantas Airways deals on Portland to Sydney flight tickets

Qantas Airways

Jan 30

PDX4:51 pmPortland

18h 19m

1 stop

SYD6:10 amSydney Kingsford Smith

Feb 14

SYD7:05 amSydney Kingsford Smith

29h 06m

2 stops

PDX5:11 pmPortland

$957

Find similar

Qantas Airways

Jan 27

PDX3:22 pmPortland

22h 38m

1 stop

SYD9:00 amSydney Kingsford Smith

Feb 17

SYD7:05 amSydney Kingsford Smith

29h 06m

2 stops

PDX5:11 pmPortland

$978

Find similar

Qantas Airways

Dec 29

PDX6:20 amPortland

31h 40m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 13

SYD7:15 pmSydney Kingsford Smith

37h 20m

2 stops

PDX1:35 pmPortland

$1,009

Find similar

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

Jan 29

PDX7:00 pmPortland

26h 40m

2 stops

SYD4:40 pmSydney Kingsford Smith

Feb 15

SYD11:20 amSydney Kingsford Smith

16h 55m

1 stop

PDX9:15 amPortland

$970

Find similar

Air Canada

Jan 22

PDX3:15 pmPortland

28h 25m

2 stops

SYD2:40 pmSydney Kingsford Smith

Feb 6

SYD11:20 amSydney Kingsford Smith

22h 20m

1 stop

PDX2:40 pmPortland

$1,013

Find similar

Air Canada

Jan 29

PDX7:00 pmPortland

23h 40m

2 stops

SYD1:40 pmSydney Kingsford Smith

Feb 15

SYD7:15 pmSydney Kingsford Smith

38h 25m

2 stops

PDX2:40 pmPortland

$1,024

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

3:15 pm-9:35 am

1 stop23h 20m

Sydney Kingsford Smith

Mon 2/23

11:20 am-6:30 pm

1 stop26h 10m

$951

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 1/30

4:51 pm-6:10 am

1 stop18h 19m

Sydney Kingsford Smith

Sat 2/14

7:05 am-5:11 pm

2 stops29h 06m

$957

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

7:00 pm-9:35 am

1 stop19h 35m

Sydney Kingsford Smith

Mon 2/23

9:00 am-9:15 am

2 stops19h 15m

$966

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 1/29

7:00 pm-4:40 pm

2 stops26h 40m

Sydney Kingsford Smith

Sun 2/15

11:20 am-9:15 am

1 stop16h 55m

$970

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 1/27

3:22 pm-9:00 am

1 stop22h 38m

Sydney Kingsford Smith

Tue 2/17

7:05 am-5:11 pm

2 stops29h 06m

$978

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

3:15 pm-6:05 pm

2 stops31h 50m

Sydney Kingsford Smith

Mon 2/23

9:00 am-9:15 am

2 stops19h 15m

$998

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 12/29

6:20 am-9:00 am

1 stop31h 40m

Sydney Kingsford Smith

Tue 1/13

7:15 pm-1:35 pm

2 stops37h 20m

$1,009

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 12/29

4:26 pm-9:20 am

2 stops21h 54m

Sydney Kingsford Smith

Tue 1/13

9:25 pm-8:48 pm

1 stop18h 23m

$1,011

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 1/22

3:15 pm-2:40 pm

2 stops28h 25m

Sydney Kingsford Smith

Fri 2/6

11:20 am-2:40 pm

1 stop22h 20m

$1,013

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

4:51 pm-6:10 am

1 stop18h 19m

Sydney Kingsford Smith

Mon 2/23

8:00 am-5:11 pm

2 stops28h 11m

$1,014

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How to get the cheapest flight ticket from Portland to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Portland and Sydney?

What is the cheapest month to fly to Sydney?

In general, September is the cheapest month to fly from Portland to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $993. If you are unable to visit Sydney during the month of September, then departing from Portland during the month June is also very affordable. Most momondo users find prices during this month for around $994.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Portland to Sydney is on a Saturday when prices can be found for as low as $1,040. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,146.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Portland to Sydney in the morning for as low as $1,060. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly at noon, with an average ticket price of $1,135. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Sydney from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,128 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Portland for as low as $904 on momondo.

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 1% on your flight if you consider stops on a Portland to Sydney flight.

How have Portland to Sydney flight prices changed over time?

As of November 2025, prices for Portland to Sydney flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Sydney (PDX to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Sydney

Direct flights	None

There are no direct flights from Portland to Sydney. There are no popular flight routes from Portland to Sydney.

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How far is Portland to Sydney Kingsford Smith by plane?
A flight from Portland to Sydney Kingsford Smith will travel around 7663.9 mi. A reasonable flight in good conditions will take 17h 45m.
When did momondo last update prices for flights from Portland Airport to Sydney Kingsford Smith Airport?
Prices for flights from Portland Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Portland Airport to Sydney Kingsford Smith Airport?
As of November 2025, there are 7 operators available to choose from for flights from Portland Airport to Sydney Kingsford Smith Airport.
How old do you have to be to fly from Portland Airport to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Portland to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Sydney is Air Canada (28% of total bookings). The next most popular airlines are United Airlines (28%), Delta (15%), and Alaska Airlines (11%).

Best airlines flying from Portland to Sydney

Compare and see reviews for airlines that fly from Portland to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $545	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,813 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,464 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $898	Free Cancellation	Rating 7.5 942 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $912	Free Cancellation	Rating 7.4 9,033 reviews	Search United Airlines flights
American Airlines	PriceFrom $952	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,329 reviews	Search Alaska Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Portland to Sydney?

Finding the right flight to Sydney from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

Can I find flights from Portland to Sydney with flexible booking policies on momondo?

Flights from Portland to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Sydney?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Portland.

I’m not ready to book a flight from Portland to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

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Cheap flights from Portland to Sydney from $586

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sydney departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qantas Airways flights from Portland to Sydney

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Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

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How to get the cheapest flight ticket from Portland to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Portland and Sydney?

What is the cheapest month to fly to Sydney?

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Portland to Sydney is on a Saturday when prices can be found for as low as $1,040. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,146.

What is the cheapest time of day to depart on your flight to Sydney?

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

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 1% on your flight if you consider stops on a Portland to Sydney flight.

How have Portland to Sydney flight prices changed over time?

As of November 2025, prices for Portland to Sydney flights are approximately 32% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Portland to Sydney Kingsford Smith?

Qantas Airways is the most popular carrier operating from Portland to Sydney Kingsford Smith

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Portland and Sydney?

Vancouver (YVR) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Portland to Sydney?

Flights via Los Angeles (LAX) offer the lowest average round-trip price of $1,322.

Which layover airport has the shortest travel time from Portland to Sydney?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 18h 27m.

Which layover airport has the shortest connection time from Portland to Sydney?

Vancouver (YVR) has the shortest average layover time for this route: 2h 05m.

When to book flights from Portland to Sydney

Cheap Portland to Sydney (PDX to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Sydney

Direct flights

How far is Portland to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from Portland Airport to Sydney Kingsford Smith Airport?

How many operators does momondo search for flights from Portland Airport to Sydney Kingsford Smith Airport?

How old do you have to be to fly from Portland Airport to Sydney Kingsford Smith Airport?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular airline from Portland to Sydney?

Best airlines flying from Portland to Sydney

Compare and see reviews for airlines that fly from Portland to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Sydney?

Can I find flights from Portland to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from Portland to Sydney?

I’m not ready to book a flight from Portland to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales