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

Flights via San Francisco (SFO) offer the lowest average round-trip price of $1,304.

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

Vancouver (YVR) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

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 42% 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 47m.

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.

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

Qantas Airways and Air Canada are the most popular carriers 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 January 2026, 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.

$472 Cheap Flights from Portland to Sydney in 2026

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 $968 to $1,356. The lowest price recently found on this route was $975.

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5:39 pm - 9:10 am

PDX

SYD

44h 31m

2 stops

11:20 am - 5:13 pm

SYD

PDX

24h 53m

1 stop

$975Qantas Airways

ma., feb. 23 - ma., mar. 2

5:39 pm - 9:10 am

PDX

SYD

44h 31m

2 stops

11:20 am - 5:13 pm

SYD

PDX

24h 53m

1 stop

$989Qantas Airways

ma., feb. 23 - ma., mar. 2

6:25 am - 7:25 am

PDX

SYD

30h 00m

1 stop

7:15 pm - 10:02 pm

SYD

PDX

44h 47m

2 stops

$991Qantas Airways

to., feb. 26 - ti., mar. 10

9:30 pm - 7:25 am

PDX

SYD

38h 55m

1 stop

2:00 pm - 10:52 am

SYD

PDX

39h 52m

2 stops

$994Multiple Airlines

sø., feb. 22 - sø., mar. 8

2:30 pm - 12:35 pm

PDX

SYD

27h 05m

2 stops

6:00 am - 8:53 pm

SYD

PDX

33h 53m

2 stops

$995Multiple Airlines

ma., feb. 23 - ma., mar. 2

2:50 pm - 6:25 am

PDX

SYD

22h 35m

1 stop

6:25 am - 1:26 pm

SYD

PDX

24h 01m

2 stops

$1,004Qantas Airways

ti., mai 5 - ti., mai 12

2:50 pm - 6:25 am

PDX

SYD

22h 35m

1 stop

6:25 am - 1:26 pm

SYD

PDX

24h 01m

2 stops

$1,005Qantas Airways

ti., mai 5 - ti., mai 12

2:57 pm - 5:40 pm

PDX

SYD

31h 43m

2 stops

11:20 am - 5:13 pm

SYD

PDX

24h 53m

1 stop

$1,011Qantas Airways

sø., feb. 8 - on., mar. 4

4:51 pm - 6:10 am

PDX

SYD

18h 19m

1 stop

7:45 am - 5:13 pm

SYD

PDX

28h 28m

2 stops

$1,017Qantas Airways

ti., feb. 10 - fr., feb. 13

9:53 am - 7:30 am

PDX

SYD

28h 37m

1 stop

1:15 pm - 11:57 am

SYD

PDX

39h 42m

2 stops

$1,027Multiple Airlines

to., apr. 23 - sø., mai 10

Qantas Airways flights from Portland to Sydney

Our best Qantas Airways deals on Portland to Sydney flight tickets

Qantas Airways

Feb 23

PDX5:39 pmPortland

44h 31m

2 stops

SYD9:10 amSydney Kingsford Smith

Mar 2

SYD11:20 amSydney Kingsford Smith

24h 53m

1 stop

PDX5:13 pmPortland

$975

Qantas Airways

Feb 23

PDX5:39 pmPortland

44h 31m

2 stops

SYD9:10 amSydney Kingsford Smith

Mar 2

SYD11:20 amSydney Kingsford Smith

24h 53m

1 stop

PDX5:13 pmPortland

$989

Qantas Airways

Feb 26

PDX6:25 amPortland

30h 00m

1 stop

SYD7:25 amSydney Kingsford Smith

Mar 10

SYD7:15 pmSydney Kingsford Smith

44h 47m

2 stops

PDX10:02 pmPortland

$991

United Airlines flights from Portland to Sydney

Our best United Airlines deals on Portland to Sydney flight tickets

United Airlines

Jan 30

PDX3:50 pmPortland

19h 30m

1 stop

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD11:50 amSydney Kingsford Smith

26h 05m

2 stops

PDX6:55 pmPortland

$1,246

United Airlines

Jan 29

PDX3:50 pmPortland

19h 30m

1 stop

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD11:50 amSydney Kingsford Smith

26h 05m

2 stops

PDX6:55 pmPortland

$1,247

United Airlines

Jan 30

PDX1:35 pmPortland

46h 25m

2 stops

SYD7:00 amSydney Kingsford Smith

Feb 14

SYD11:50 amSydney Kingsford Smith

26h 05m

2 stops

PDX6:55 pmPortland

$1,293

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

ma. 2/23

5:39 pm-9:10 am

2 stops44h 31m

Sydney Kingsford Smith

ma. 3/2

11:20 am-5:13 pm

1 stop24h 53m

$975

PortlandSydney

PDX - SYD

PDXSYD

Portland

ma. 2/23

5:39 pm-9:10 am

2 stops44h 31m

Sydney Kingsford Smith

ma. 3/2

11:20 am-5:13 pm

1 stop24h 53m

$989

PortlandSydney

PDX - SYD

PDXSYD

Portland

to. 2/26

6:25 am-7:25 am

1 stop30h 00m

Sydney Kingsford Smith

ti. 3/10

7:15 pm-10:02 pm

2 stops44h 47m

$991

PortlandSydney

PDX - SYD

PDXSYD

Portland

sø. 2/22

9:30 pm-7:25 am

1 stop38h 55m

Sydney Kingsford Smith

sø. 3/8

2:00 pm-10:52 am

2 stops39h 52m

$994

PortlandSydney

PDX - SYD

PDXSYD

Portland

ma. 2/23

2:30 pm-12:35 pm

2 stops27h 05m

Sydney Kingsford Smith

ma. 3/2

6:00 am-8:53 pm

2 stops33h 53m

$995

PortlandSydney

PDX - SYD

PDXSYD

Portland

ti. 5/5

2:50 pm-6:25 am

1 stop22h 35m

Sydney Kingsford Smith

ti. 5/12

6:25 am-1:26 pm

2 stops24h 01m

$1,004

PortlandSydney

PDX - SYD

PDXSYD

Portland

ti. 5/5

2:50 pm-6:25 am

1 stop22h 35m

Sydney Kingsford Smith

ti. 5/12

6:25 am-1:26 pm

2 stops24h 01m

$1,005

PortlandSydney

PDX - SYD

PDXSYD

Portland

sø. 2/8

2:57 pm-5:40 pm

2 stops31h 43m

Sydney Kingsford Smith

on. 3/4

11:20 am-5:13 pm

1 stop24h 53m

$1,011

PortlandSydney

PDX - SYD

PDXSYD

Portland

ti. 2/10

4:51 pm-6:10 am

1 stop18h 19m

Sydney Kingsford Smith

fr. 2/13

7:45 am-5:13 pm

2 stops28h 28m

$1,017

PortlandSydney

PDX - SYD

PDXSYD

Portland

to. 4/23

9:53 am-7:30 am

1 stop28h 37m

Sydney Kingsford Smith

sø. 5/10

1:15 pm-11:57 am

2 stops39h 42m

$1,027

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 $999. 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 $999.

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 $1,176 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 $897 on momondo.

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 12% 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 January 2026, prices for Portland to Sydney flights are approximately 18% 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 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 January 2026, 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 (33% of total bookings). The next most popular airlines are United Airlines (22%), Alaska Airlines (13%), 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 $497	Free Cancellation	Rating 7.9 8,128 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,667 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $898	Free Cancellation	Rating 7.5 981 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $910	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
American Airlines	PriceFrom $952	Free Cancellation	Rating 7.2 11,205 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,806 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.

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Cheap flights from Portland to Sydney from $472

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 3/2. 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 United Airlines deals on Portland to Sydney flight tickets

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How to get the cheapest flight ticket from Portland to Sydney

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

What is the cheapest month to fly 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 12% 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 January 2026, prices for Portland to Sydney flights are approximately 18% 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 and Air Canada 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: 65% 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 San Francisco (SFO) offer the lowest average round-trip price of $1,304.

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 47m.

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

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