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 05m.

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

Air Canada, Qantas Airways, and Hawaiian Airlines are the most popular carriers 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 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 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.

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.

$567 Cheap Flights from Portland to Sydney in 2025/26

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

Prices are currently typical for flights on this route. Typical prices usually range from $952 to $1,235. The lowest price recently found on this route was $957.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

6:01 am - 9:00 amPDX-SYD

31h 59m1 stop

7:05 am - 5:11 pmSYD-PDX

29h 06m2 stops

$958Qantas Airways

Find Deal

Fri, Jan 30 - Sat, Feb 14

2:47 pm - 6:10 amPDX-SYD

20h 23m1 stop

9:55 pm - 11:42 pmSYD-PDX

44h 47m2 stops

$965Qantas Airways

Find Deal

Tue, Feb 24 - Thu, Mar 5

6:40 am - 8:50 pmPDX-SYD

43h 10m2 stops

9:25 pm - 8:34 pmSYD-PDX

17h 09m1 stop

$987Qantas Airways

Find Deal

Thu, Feb 26 - Tue, Mar 10

5:39 pm - 9:20 amPDX-SYD

21h 41m2 stops

9:25 pm - 8:38 pmSYD-PDX

17h 13m1 stop

$993Multiple Airlines

Find Deal

Mon, Mar 9 - Tue, Mar 24

2:47 pm - 6:10 amPDX-SYD

21h 23m1 stop

7:40 pm - 10:31 pmSYD-PDX

43h 51m2 stops

$996Qantas Airways

Find Deal

Tue, Mar 17 - Tue, Apr 7

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

6:20 am - 9:50 amPDX-SYD

32h 30m2 stops

9:25 pm - 8:48 pmSYD-PDX

18h 23m1 stop

$1,011Qantas Airways

Find Deal

Mon, Dec 29 - Tue, Jan 20

2:47 pm - 6:10 amPDX-SYD

21h 23m1 stop

5:30 pm - 10:36 pmSYD-PDX

23h 06m2 stops

$1,020Qantas Airways

Find Deal

Tue, Mar 17 - Tue, Mar 24

6:40 am - 12:30 pmPDX-SYD

34h 50m2 stops

9:25 pm - 8:34 pmSYD-PDX

17h 09m1 stop

$1,042Qantas Airways

Find Deal

Thu, Feb 26 - Tue, Mar 10

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

Mar 17

PDX9:40 amPortland

28h 55m

1 stop

SYD8:35 amSydney Kingsford Smith

Mar 24

SYD10:20 amSydney Kingsford Smith

26h 10m

1 stop

PDX6:30 pmPortland

$1,079

Find similar

Air Canada

Mar 1

PDX7:00 pmPortland

24h 40m

2 stops

SYD2:40 pmSydney Kingsford Smith

Mar 9

SYD11:20 amSydney Kingsford Smith

21h 20m

1 stop

PDX2:40 pmPortland

$1,098

Find similar

Air Canada

Mar 9

PDX3:15 pmPortland

23h 20m

1 stop

SYD8:35 amSydney Kingsford Smith

Mar 24

SYD10:20 amSydney Kingsford Smith

26h 10m

1 stop

PDX6:30 pmPortland

$1,113

Find similar

Alaska Airlines flights from Portland to Sydney

Our best Alaska Airlines deals on Portland to Sydney flight tickets

Alaska Airlines

Nov 14

PDX7:09 amPortland

17h 36m

1 stop

SYD7:45 pmSydney Kingsford Smith

Nov 16

SYD9:40 pmSydney Kingsford Smith

27h 20m

2 stops

PDX6:00 amPortland

$1,148

Find similar

Alaska Airlines

Jan 11

PDX7:00 amPortland

17h 45m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 17

SYD9:40 pmSydney Kingsford Smith

26h 33m

2 stops

PDX5:13 amPortland

$1,160

Find similar

Alaska Airlines

Jan 4

PDX10:30 amPortland

38h 15m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 24

SYD9:40 pmSydney Kingsford Smith

26h 51m

1 stop

PDX5:31 amPortland

$1,176

Find similar

Fly from

Fly to

Route

Depart

Return

Price

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 1/30

6:01 am-9:00 am

1 stop31h 59m

Sydney Kingsford Smith

Sat 2/14

7:05 am-5:11 pm

2 stops29h 06m

$958

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 2/24

2:47 pm-6:10 am

1 stop20h 23m

Sydney Kingsford Smith

Thu 3/5

9:55 pm-11:42 pm

2 stops44h 47m

$965

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 2/26

6:40 am-8:50 pm

2 stops43h 10m

Sydney Kingsford Smith

Tue 3/10

9:25 pm-8:34 pm

1 stop17h 09m

$987

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

$993

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 3/17

2:47 pm-6:10 am

1 stop21h 23m

Sydney Kingsford Smith

Tue 4/7

7:40 pm-10:31 pm

2 stops43h 51m

$996

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

6:20 am-9:50 am

2 stops32h 30m

Sydney Kingsford Smith

Tue 1/20

9:25 pm-8:48 pm

1 stop18h 23m

$1,011

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 3/17

2:47 pm-6:10 am

1 stop21h 23m

Sydney Kingsford Smith

Tue 3/24

5:30 pm-10:36 pm

2 stops23h 06m

$1,020

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 2/26

6:40 am-12:30 pm

2 stops34h 50m

Sydney Kingsford Smith

Tue 3/10

9:25 pm-8:34 pm

1 stop17h 09m

$1,042

Flights are sorted by cheapest round-trip flights first.

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

What is the cheapest month to fly to Sydney?

In general, June 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 $984. If you are unable to visit Sydney during the month of June, then departing from Portland during the month September is also very affordable. Most momondo users find prices during this month for around $993.

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 $1,125 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.

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 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 8,009 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,809 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,444 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $898	Free Cancellation	Rating 7.5 933 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $912	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
American Airlines	PriceFrom $952	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,281 reviews	Search Alaska Airlines flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Cronulla

Manly

Penrith

Leura

Lithgow

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 12/13

Sat 12/20

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Airports servicing New South Wales

Popular cities in Australia

Flights to Melbournefrom $765

Flights to Brisbanefrom $682

Flights to Perthfrom $952

Flights to Adelaidefrom $817

Flights to Cairnsfrom $953

Flights to Coolangattafrom $997

Flights to Hobartfrom $1,055

Flights to Canberrafrom $1,009

Flights to Darwinfrom $1,333

Flights to Maroochydorefrom $1,089

Flights to Launcestonfrom $1,141

Flights to Ballinafrom $1,682

Cheap flights from Portland to Sydney from $567

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 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Alaska Airlines flights from Portland to Sydney

Our best Alaska Airlines deals on Portland to Sydney flight tickets

momondo Fare Finder

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

See travel insights to Sydney from

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?

Air Canada, Qantas Airways, and Hawaiian Airlines are the most popular carriers 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