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 March 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 $1,615 to $2,019. The lowest price recently found on this route was $1,341.

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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.

15:30 - 07:20

PDX

SYD

22h 50m

1 stop

09:20 - 14:51

SYD

PDX

22h 31m

1 stop

$1,341Air Canada

Mon, 22 Jun - Tue, 21 Jul

19:05 - 07:20

PDX

SYD

19h 15m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,343Air Canada

Mon, 27 Apr - Wed, 6 May

15:30 - 07:20

PDX

SYD

22h 50m

1 stop

09:20 - 09:31

SYD

PDX

17h 11m

1 stop

$1,347Air Canada

Mon, 6 Jul - Sun, 26 Jul

19:45 - 07:20

PDX

SYD

18h 35m

1 stop

09:20 - 19:05

SYD

PDX

26h 45m

1 stop

$1,351Air Canada

Wed, 10 Jun - Tue, 16 Jun

15:15 - 07:20

PDX

SYD

23h 05m

1 stop

09:20 - 09:30

SYD

PDX

17h 10m

1 stop

$1,354Air Canada

Tue, 28 Apr - Fri, 8 May

09:50 - 07:20

PDX

SYD

28h 30m

1 stop

09:20 - 19:05

SYD

PDX

26h 45m

1 stop

$1,357Air Canada

Sun, 19 Apr - Fri, 1 May

19:05 - 08:20

PDX

SYD

19h 15m

1 stop

09:20 - 09:10

SYD

PDX

16h 50m

1 stop

$1,358Multiple Airlines

Sun, 29 Mar - Wed, 15 Apr

19:45 - 07:20

PDX

SYD

18h 35m

1 stop

09:20 - 14:51

SYD

PDX

22h 31m

1 stop

$1,364Multiple Airlines

Mon, 6 Jul - Sun, 19 Jul

15:15 - 07:20

PDX

SYD

23h 05m

1 stop

09:20 - 19:05

SYD

PDX

26h 45m

1 stop

$1,365Air Canada

Sat, 25 Apr - Sat, 16 May

15:15 - 07:20

PDX

SYD

23h 05m

1 stop

06:00 - 09:30

SYD

PDX

20h 30m

2 stops

$1,370Multiple Airlines

Mon, 27 Apr - Wed, 6 May

Air Canada flights from Portland to Sydney

Our best Air Canada deals on Portland to Sydney flight tickets

Air Canada

22 June

PDX15:30Portland

22h 50m

1 stop

SYD07:20Sydney Kingsford Smith

21 July

SYD09:20Sydney Kingsford Smith

17h 11m

1 stop

PDX09:31Portland

$1,341

Air Canada

27 Apr

PDX19:05Portland

19h 15m

1 stop

SYD07:20Sydney Kingsford Smith

6 May

SYD09:20Sydney Kingsford Smith

17h 10m

1 stop

PDX09:30Portland

$1,343

Air Canada

6 July

PDX15:30Portland

22h 50m

1 stop

SYD07:20Sydney Kingsford Smith

26 July

SYD09:20Sydney Kingsford Smith

17h 11m

1 stop

PDX09:31Portland

$1,347

Qantas Airways flights from Portland to Sydney

Our best Qantas Airways deals on Portland to Sydney flight tickets

Qantas Airways

11 Mar

PDX17:38Portland

21h 42m

2 stops

SYD09:20Sydney Kingsford Smith

2 Apr

SYD17:30Sydney Kingsford Smith

24h 28m

2 stops

PDX23:58Portland

$1,723

Qantas Airways

23 Mar

PDX17:38Portland

21h 22m

1 stop

SYD09:00Sydney Kingsford Smith

7 Apr

SYD16:30Sydney Kingsford Smith

22h 05m

2 stops

PDX21:35Portland

$1,753

Qantas Airways

11 Mar

PDX17:38Portland

21h 22m

1 stop

SYD09:00Sydney Kingsford Smith

2 Apr

SYD17:30Sydney Kingsford Smith

24h 28m

2 stops

PDX23:58Portland

$1,764

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 22/6

15:30-07:20

1 stop22h 50m

Sydney Kingsford Smith

Tue 21/7

09:20-14:51

1 stop22h 31m

$1,341

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 27/4

19:05-07:20

1 stop19h 15m

Sydney Kingsford Smith

Wed 6/5

09:20-09:30

1 stop17h 10m

$1,343

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 6/7

15:30-07:20

1 stop22h 50m

Sydney Kingsford Smith

Sun 26/7

09:20-09:31

1 stop17h 11m

$1,347

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 10/6

19:45-07:20

1 stop18h 35m

Sydney Kingsford Smith

Tue 16/6

09:20-19:05

1 stop26h 45m

$1,351

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 28/4

15:15-07:20

1 stop23h 05m

Sydney Kingsford Smith

Fri 8/5

09:20-09:30

1 stop17h 10m

$1,354

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

09:50-07:20

1 stop28h 30m

Sydney Kingsford Smith

Fri 1/5

09:20-19:05

1 stop26h 45m

$1,357

Fastest return journey

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 29/3

19:05-08:20

1 stop19h 15m

Sydney Kingsford Smith

Wed 15/4

09:20-09:10

1 stop16h 50m

$1,358

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 6/7

19:45-07:20

1 stop18h 35m

Sydney Kingsford Smith

Sun 19/7

09:20-14:51

1 stop22h 31m

$1,364

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sat 25/4

15:15-07:20

1 stop23h 05m

Sydney Kingsford Smith

Sat 16/5

09:20-19:05

1 stop26h 45m

$1,365

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 27/4

15:15-07:20

1 stop23h 05m

Sydney Kingsford Smith

Wed 6/5

06:00-09:30

2 stops20h 30m

$1,370

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 September is, on average, the cheapest month to fly to Sydney from Portland, with most prices found around $1,425. If you aren’t able to travel to Sydney during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $1,589.

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 $1,736 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 $1,274 on momondo.

Can stopping save me money on Portland to Sydney flights?

You could potentially save up to 23% 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 March 2026, prices for Portland to Sydney flights are approximately 1% 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	21h 23m
Direct flights	None

The fastest flight from Portland to Sydney takes 21h 23m

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 21h 23m.
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 March 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 $1,365	Free cancellation	Rating 7.4 9,409 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.