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 February 2026, there is 1 operator 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$614 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 low for flights on this route. Typical prices usually range from $1,543 to $1,983. The lowest price recently found on this route was $1,272.

1 adult

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Find the cheapest flights from Portland to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

09:50 - 07:20

PDX

SYD

28h 30m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,272Air Canada

Mon, 27 Apr - Wed, 6 May

19:45 - 07:20

PDX

SYD

18h 35m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,273Air Canada

Tue, 5 May - Tue, 12 May

19:45 - 07:20

PDX

SYD

18h 35m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,284Air Canada

Tue, 5 May - Tue, 12 May

15:15 - 08:35

PDX

SYD

23h 20m

1 stop

10:25 - 14:40

SYD

PDX

22h 15m

1 stop

$1,287Air Canada

Tue, 10 Mar - Mon, 16 Mar

19:05 - 08:20

PDX

SYD

19h 15m

1 stop

09:20 - 18:30

SYD

PDX

26h 10m

1 stop

$1,293Air Canada

Sun, 29 Mar - Tue, 14 Apr

09:50 - 07:20

PDX

SYD

28h 30m

1 stop

06:00 - 09:10

SYD

PDX

20h 10m

2 stops

$1,300Multiple Airlines

Sun, 19 Apr - Sun, 26 Apr

19:05 - 11:25

PDX

SYD

23h 20m

2 stops

09:20 - 09:10

SYD

PDX

16h 50m

1 stop

$1,308Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

19:45 - 07:20

PDX

SYD

18h 35m

1 stop

07:00 - 09:30

SYD

PDX

19h 30m

2 stops

$1,310Multiple Airlines

Tue, 5 May - Tue, 12 May

19:05 - 07:20

PDX

SYD

19h 15m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,314Air Canada

Sun, 19 Apr - Fri, 1 May

09:50 - 07:20

PDX

SYD

28h 30m

1 stop

09:20 - 09:10

SYD

PDX

16h 50m

1 stop

$1,315Air Canada

Sun, 19 Apr - Thu, 30 Apr

Qantas Airways flights from Portland to Sydney

Our best Qantas Airways deals on Portland to Sydney flight tickets

Qantas Airways

5 May

PDX14:50Portland

22h 35m

1 stop

SYD06:25Sydney Kingsford Smith

12 May

SYD06:25Sydney Kingsford Smith

24h 01m

2 stops

PDX13:26Portland

$1,380

Qantas Airways

6 Mar

PDX14:47Portland

20h 23m

1 stop

SYD06:10Sydney Kingsford Smith

8 Mar

SYD22:00Sydney Kingsford Smith

41h 52m

2 stops

PDX21:52Portland

$1,409

Qantas Airways

8 Mar

PDX17:38Portland

22h 12m

2 stops

SYD09:50Sydney Kingsford Smith

12 Mar

SYD17:35Sydney Kingsford Smith

24h 07m

2 stops

PDX23:42Portland

$1,771

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

27 Apr

PDX09:50Portland

28h 30m

1 stop

SYD07:20Sydney Kingsford Smith

6 May

SYD09:20Sydney Kingsford Smith

17h 10m

1 stop

PDX09:30Portland

$1,272

Air Canada

5 May

PDX19:45Portland

18h 35m

1 stop

SYD07:20Sydney Kingsford Smith

12 May

SYD09:20Sydney Kingsford Smith

17h 10m

1 stop

PDX09:30Portland

$1,273

Air Canada

5 May

PDX19:45Portland

18h 35m

1 stop

SYD07:20Sydney Kingsford Smith

12 May

SYD09:20Sydney Kingsford Smith

17h 10m

1 stop

PDX09:30Portland

$1,284

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 27/4

09:50-07:20

1 stop28h 30m

Sydney Kingsford Smith

Wed 6/5

09:20-09:30

1 stop17h 10m

$1,272

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 5/5

19:45-07:20

1 stop18h 35m

Sydney Kingsford Smith

Tue 12/5

09:20-09:30

1 stop17h 10m

$1,273

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 5/5

19:45-07:20

1 stop18h 35m

Sydney Kingsford Smith

Tue 12/5

09:20-09:30

1 stop17h 10m

$1,284

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 10/3

15:15-08:35

1 stop23h 20m

Sydney Kingsford Smith

Mon 16/3

10:25-14:40

1 stop22h 15m

$1,287

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 29/3

19:05-08:20

1 stop19h 15m

Sydney Kingsford Smith

Tue 14/4

09:20-18:30

1 stop26h 10m

$1,293

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

09:50-07:20

1 stop28h 30m

Sydney Kingsford Smith

Sun 26/4

06:00-09:10

2 stops20h 10m

$1,300

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 14/4

19:05-11:25

2 stops23h 20m

Sydney Kingsford Smith

Tue 21/4

09:20-09:10

1 stop16h 50m

$1,308

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 5/5

19:45-07:20

1 stop18h 35m

Sydney Kingsford Smith

Tue 12/5

07:00-09:30

2 stops19h 30m

$1,310

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

19:05-07:20

1 stop19h 15m

Sydney Kingsford Smith

Fri 1/5

09:20-09:30

1 stop17h 10m

$1,314

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

09:50-07:20

1 stop28h 30m

Sydney Kingsford Smith

Thu 30/4

09:20-09:10

1 stop16h 50m

$1,315

Flights are sorted by cheapest return 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

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

What is the cheapest month to fly to Sydney?

The month of June is, on average, the cheapest month to fly to Sydney from Portland, with most prices found around $1,401. If you aren’t able to travel to Sydney during the month of June, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $1,407.

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 $1,678 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Portland for as low as $1,258 on momondo.

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 8% 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 February 2026, prices for Portland to Sydney flights are approximately 3% 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 return 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 50m
Direct flights	None

The fastest flight from Portland to Sydney takes 17h 50m

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?
There are 12333.8 km between Portland and Sydney Kingsford Smith. By plane, this route typically takes 17h 50m.
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 February 2026, there is 1 operator 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 for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for 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 you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
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 United Airlines (100% of total bookings).

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
United Airlines	PriceFrom $1,290	Free cancellation	Rating 7.4 9,363 reviews		Search United Airlines flights

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Manly

Leura

Coogee

Bondi Beach

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Sydney . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Sydney from Portland with this policy.

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?

Yes. momondo can track prices for Portland to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.