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

Vancouver (YVR) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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 06m.

What airlines fly to Sydney?

Air Canada, United Airlines and Alaska Airlines 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 36% 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?

Air Canada is the most popular carrier operating from Portland to Sydney Kingsford Smith

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 December 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.

$418 Cheap Flights from Portland to Sydney in 2025/26

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One-way

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12:13 pm - 12:35 pm

PDX

SYD

29h 22m2 stops

2:00 pm - 8:27 pm

SYD

PDX

25h 27m2 stops

$822Multiple Airlines

Mon, Feb 2 - Mon, Feb 9

7:00 pm - 8:35 am

PDX

SYD

19h 35m1 stop

10:20 am - 6:30 pm

SYD

PDX

26h 10m1 stop

$910Air Canada

Mon, Mar 9 - Tue, Mar 24

7:00 pm - 2:40 pm

PDX

SYD

24h 40m2 stops

11:20 am - 6:30 pm

SYD

PDX

26h 10m1 stop

$924Multiple Airlines

Tue, Jan 27 - Tue, Feb 3

3:15 pm - 7:20 am

PDX

SYD

23h 05m1 stop

7:00 am - 2:40 pm

SYD

PDX

24h 40m2 stops

$925Air Canada

Mon, Apr 6 - Tue, Apr 14

7:00 pm - 12:40 pm

PDX

SYD

23h 40m2 stops

10:20 am - 6:30 pm

SYD

PDX

26h 10m1 stop

$929Air Canada

Mon, Mar 9 - Tue, Mar 24

3:15 pm - 7:20 am

PDX

SYD

23h 05m1 stop

8:10 pm - 9:15 am

SYD

PDX

30h 05m2 stops

$930Multiple Airlines

Sun, Apr 12 - Sat, Apr 18

7:00 pm - 11:25 am

PDX

SYD

23h 25m2 stops

8:10 pm - 9:15 am

SYD

PDX

30h 05m2 stops

$943Multiple Airlines

Sun, Apr 12 - Sat, Apr 18

7:00 pm - 2:40 pm

PDX

SYD

24h 40m2 stops

8:00 am - 9:15 am

SYD

PDX

19h 15m2 stops

$944Air Canada

Sun, Jan 18 - Sun, Mar 15

7:00 pm - 9:35 am

PDX

SYD

19h 35m1 stop

11:20 am - 2:40 pm

SYD

PDX

22h 20m1 stop

$952Air Canada

Fri, Feb 6 - Mon, Feb 23

4:51 pm - 6:10 am

PDX

SYD

18h 19m1 stop

7:05 am - 5:19 pm

SYD

PDX

29h 14m2 stops

$958Qantas Airways

Fri, Feb 6 - Tue, Feb 24

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

Mar 9

PDX7:00 pmPortland

19h 35m

1 stop

SYD8:35 amSydney Kingsford Smith

Mar 24

SYD10:20 amSydney Kingsford Smith

26h 10m

1 stop

PDX6:30 pmPortland

$910

Find similar

Air Canada

Apr 6

PDX3:15 pmPortland

23h 05m

1 stop

SYD7:20 amSydney Kingsford Smith

Apr 14

SYD7:00 amSydney Kingsford Smith

24h 40m

2 stops

PDX2:40 pmPortland

$925

Find similar

Air Canada

Mar 9

PDX7:00 pmPortland

23h 40m

2 stops

SYD12:40 pmSydney Kingsford Smith

Mar 24

SYD10:20 amSydney Kingsford Smith

26h 10m

1 stop

PDX6:30 pmPortland

$929

Find similar

Qantas Airways flights from Portland to Sydney

Our best Qantas Airways deals on Portland to Sydney flight tickets

Qantas Airways

Feb 26

PDX6:40 amPortland

43h 10m

2 stops

SYD8:50 pmSydney Kingsford Smith

Mar 10

SYD9:25 pmSydney Kingsford Smith

17h 09m

1 stop

PDX8:34 pmPortland

$989

Find similar

Qantas Airways

Jan 19

PDX6:01 amPortland

30h 24m

1 stop

SYD7:25 amSydney Kingsford Smith

Feb 9

SYD7:15 pmSydney Kingsford Smith

37h 26m

2 stops

PDX1:41 pmPortland

$1,012

Find similar

Qantas Airways

Jan 13

PDX4:51 pmPortland

18h 19m

1 stop

SYD6:10 amSydney Kingsford Smith

Jan 20

SYD6:00 amSydney Kingsford Smith

29h 49m

2 stops

PDX4:49 pmPortland

$1,015

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 2/2

12:13 pm-12:35 pm

2 stops29h 22m

Sydney Kingsford Smith

Mon 2/9

2:00 pm-8:27 pm

2 stops25h 27m

$822

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

7:00 pm-8:35 am

1 stop19h 35m

Sydney Kingsford Smith

Tue 3/24

10:20 am-6:30 pm

1 stop26h 10m

$910

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 1/27

7:00 pm-2:40 pm

2 stops24h 40m

Sydney Kingsford Smith

Tue 2/3

11:20 am-6:30 pm

1 stop26h 10m

$924

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 4/6

3:15 pm-7:20 am

1 stop23h 05m

Sydney Kingsford Smith

Tue 4/14

7:00 am-2:40 pm

2 stops24h 40m

$925

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

7:00 pm-12:40 pm

2 stops23h 40m

Sydney Kingsford Smith

Tue 3/24

10:20 am-6:30 pm

1 stop26h 10m

$929

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 4/12

3:15 pm-7:20 am

1 stop23h 05m

Sydney Kingsford Smith

Sat 4/18

8:10 pm-9:15 am

2 stops30h 05m

$930

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 4/12

7:00 pm-11:25 am

2 stops23h 25m

Sydney Kingsford Smith

Sat 4/18

8:10 pm-9:15 am

2 stops30h 05m

$943

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 1/18

7:00 pm-2:40 pm

2 stops24h 40m

Sydney Kingsford Smith

Sun 3/15

8:00 am-9:15 am

2 stops19h 15m

$944

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

7:00 pm-9:35 am

1 stop19h 35m

Sydney Kingsford Smith

Mon 2/23

11:20 am-2:40 pm

1 stop22h 20m

$952

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

4:51 pm-6:10 am

1 stop18h 19m

Sydney Kingsford Smith

Tue 2/24

7:05 am-5:19 pm

2 stops29h 14m

$958

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Showing 1-10 of 20 resultsSorted by cheapest first

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 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 $1,130 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 6% 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 December 2025, prices for Portland to Sydney flights are approximately 44% 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

Fastest flight time	18h 19m
Direct flights	None

The fastest flight from Portland to Sydney takes 18h 19m

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

Search flight deals

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 18h 19m.
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 December 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 (29% of total bookings). The next most popular airlines are United Airlines (29%), Alaska Airlines (12%), and Delta (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 $502	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,815 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,500 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $898	Free Cancellation	Rating 7.5 947 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $912	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights
American Airlines	PriceFrom $952	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,396 reviews	Search Alaska Airlines flights

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Wollongong

Randwick

Coogee

Manly

Penrith

Cronulla

Lithgow

Leura

Charlestown

Terrigal

Swansea

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

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.

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Cheap flights from Portland to Sydney from $418

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 3/14. 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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Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

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Our best Qantas Airways deals on Portland to Sydney flight tickets

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

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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 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 6% 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 December 2025, prices for Portland to Sydney flights are approximately 44% cheaper when compared to flights at the same time last year.

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

Air Canada 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: 50% 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 06m.

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

Fastest flight time

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