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 connection time from Portland to Sydney?

Vancouver (YVR) has the shortest average layover time for this route: 2h 06m.

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.

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?

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 35% 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.

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.

$428 Cheap Flights from Portland to Sydney in 2025/26

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5:39 pm - 9:20 amPDX-SYD

21h 41m2 stops

9:25 pm - 8:38 pmSYD-PDX

17h 13m1 stop

$853Multiple Airlines

Find Deal

Mon, Mar 9 - Tue, Mar 24

3:15 pm - 9:35 amPDX-SYD

23h 20m1 stop

11:20 am - 6:30 pmSYD-PDX

25h 10m1 stop

$909Air Canada

Find Deal

Sun, Mar 1 - Mon, Mar 9

3:15 pm - 9:35 amPDX-SYD

23h 20m1 stop

7:00 am - 2:40 pmSYD-PDX

24h 40m2 stops

$923Air Canada

Find Deal

Tue, Feb 24 - Tue, Apr 7

3:15 pm - 9:35 amPDX-SYD

23h 20m1 stop

1:00 pm - 9:15 amSYD-PDX

38h 15m2 stops

$928Air Canada

Find Deal

Sun, Mar 1 - Sat, Mar 14

3:15 pm - 12:40 pmPDX-SYD

27h 25m2 stops

7:00 am - 9:15 amSYD-PDX

20h 15m2 stops

$942Air Canada

Find Deal

Mon, Mar 9 - Sun, Mar 15

3:15 pm - 12:40 pmPDX-SYD

27h 25m2 stops

9:20 pm - 9:15 amSYD-PDX

29h 55m2 stops

$946Multiple Airlines

Find Deal

Mon, Mar 9 - Tue, Mar 17

3:15 pm - 9:35 amPDX-SYD

23h 20m1 stop

9:55 pm - 9:15 amSYD-PDX

30h 20m2 stops

$950Multiple Airlines

Find Deal

Tue, Feb 10 - Sat, Feb 28

9:50 am - 9:35 amPDX-SYD

28h 45m1 stop

11:20 am - 9:15 amSYD-PDX

16h 55m1 stop

$951Air Canada

Find Deal

Fri, Feb 6 - Mon, Feb 23

5:39 pm - 9:20 amPDX-SYD

21h 41m2 stops

9:25 pm - 8:38 pmSYD-PDX

17h 13m1 stop

$955Multiple Airlines

Find Deal

Tue, Mar 17 - Tue, Mar 24

4:51 pm - 6:10 amPDX-SYD

18h 19m1 stop

7:05 am - 5:11 pmSYD-PDX

29h 06m2 stops

$956Qantas Airways

Find Deal

Fri, Jan 30 - Sat, Feb 14

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

$956

Find similar

Qantas Airways

Feb 23

PDX6:40 amPortland

40h 00m

2 stops

SYD5:40 pmSydney Kingsford Smith

Mar 7

SYD11:20 amSydney Kingsford Smith

24h 51m

1 stop

PDX5:11 pmPortland

$957

Find similar

Qantas Airways

Jan 19

PDX6:01 amPortland

31h 59m

1 stop

SYD9:00 amSydney Kingsford Smith

Jan 26

SYD7:05 amSydney Kingsford Smith

29h 47m

2 stops

PDX5:52 pmPortland

$981

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Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

Mar 1

PDX3:15 pmPortland

23h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

Mar 9

SYD11:20 amSydney Kingsford Smith

25h 10m

1 stop

PDX6:30 pmPortland

$909

Find similar

Air Canada

Feb 24

PDX3:15 pmPortland

23h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

Apr 7

SYD7:00 amSydney Kingsford Smith

24h 40m

2 stops

PDX2:40 pmPortland

$923

Find similar

Air Canada

Mar 1

PDX3:15 pmPortland

23h 20m

1 stop

SYD9:35 amSydney Kingsford Smith

Mar 14

SYD1:00 pmSydney Kingsford Smith

38h 15m

2 stops

PDX9:15 amPortland

$928

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Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

5:39 pm-9:20 am

2 stops21h 41m

Sydney Kingsford Smith

Tue 3/24

9:25 pm-8:38 pm

1 stop17h 13m

$853

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 3/1

3:15 pm-9:35 am

1 stop23h 20m

Sydney Kingsford Smith

Mon 3/9

11:20 am-6:30 pm

1 stop25h 10m

$909

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 2/24

3:15 pm-9:35 am

1 stop23h 20m

Sydney Kingsford Smith

Tue 4/7

7:00 am-2:40 pm

2 stops24h 40m

$923

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 3/1

3:15 pm-9:35 am

1 stop23h 20m

Sydney Kingsford Smith

Sat 3/14

1:00 pm-9:15 am

2 stops38h 15m

$928

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

3:15 pm-12:40 pm

2 stops27h 25m

Sydney Kingsford Smith

Sun 3/15

7:00 am-9:15 am

2 stops20h 15m

$942

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/9

3:15 pm-12:40 pm

2 stops27h 25m

Sydney Kingsford Smith

Tue 3/17

9:20 pm-9:15 am

2 stops29h 55m

$946

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 2/10

3:15 pm-9:35 am

1 stop23h 20m

Sydney Kingsford Smith

Sat 2/28

9:55 pm-9:15 am

2 stops30h 20m

$950

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 2/6

9:50 am-9:35 am

1 stop28h 45m

Sydney Kingsford Smith

Mon 2/23

11:20 am-9:15 am

1 stop16h 55m

$951

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 3/17

5:39 pm-9:20 am

2 stops21h 41m

Sydney Kingsford Smith

Tue 3/24

9:25 pm-8:38 pm

1 stop17h 13m

$955

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

$956

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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 3% 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

Fastest flight time	17h 45m
Direct flights	None

The fastest flight from Portland to Sydney takes 17h 45m

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 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 (29% of total bookings). The next most popular airlines are United Airlines (29%), Delta (12%), and Alaska Airlines (12%).

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 7,998 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,814 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,476 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $898	Free Cancellation	Rating 7.5 944 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $912	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights
American Airlines	PriceFrom $952	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,354 reviews	Search Alaska Airlines flights

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Cronulla

Manly

Penrith

Leura

Lithgow

Charlestown

Terrigal

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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

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 $428

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 3/8. 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

Our best Qantas Airways deals on Portland to Sydney flight tickets

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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 3% 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?

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