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.

$662 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 $1,377 to $1,929. The lowest price recently found on this route was $1,409.

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.

17:51 - 06:25

PDX

SYD

19h 34m

1 stop

06:25 - 16:49

SYD

PDX

27h 24m

2 stops

$1,409Qantas Airways

Tue, 5 May - Tue, 12 May

06:25 - 10:55

PDX

SYD

33h 30m

2 stops

21:25 - 20:34

SYD

PDX

17h 09m

1 stop

$1,412Qantas Airways

Thu, 26 Feb - Tue, 10 Mar

06:25 - 10:55

PDX

SYD

33h 30m

2 stops

21:25 - 20:34

SYD

PDX

17h 09m

1 stop

$1,414Qantas Airways

Thu, 26 Feb - Tue, 10 Mar

14:47 - 06:10

PDX

SYD

20h 23m

1 stop

17:35 - 20:52

SYD

PDX

22h 17m

2 stops

$1,418Qantas Airways

Fri, 27 Feb - Sun, 8 Mar

09:50 - 07:20

PDX

SYD

28h 30m

1 stop

09:20 - 19:05

SYD

PDX

26h 45m

1 stop

$1,425Air Canada

Mon, 27 Apr - Wed, 6 May

13:09 - 07:05

PDX

SYD

24h 56m

1 stop

09:10 - 12:38

SYD

PDX

20h 28m

1 stop

$1,498American Airlines

Sun, 19 Apr - Sun, 26 Apr

13:09 - 07:05

PDX

SYD

24h 56m

1 stop

17:50 - 23:03

SYD

PDX

22h 13m

2 stops

$1,507American Airlines

Sun, 19 Apr - Sun, 26 Apr

12:04 - 08:45

PDX

SYD

27h 41m

2 stops

09:55 - 20:49

SYD

PDX

27h 54m

2 stops

$1,514Air New Zealand

Mon, 22 Jun - Tue, 21 Jul

17:49 - 22:10

PDX

SYD

35h 21m

2 stops

13:15 - 20:35

SYD

PDX

24h 20m

2 stops

$1,515Multiple Airlines

Tue, 5 May - Tue, 12 May

17:39 - 12:35

PDX

SYD

23h 56m

2 stops

14:00 - 23:58

SYD

PDX

27h 58m

2 stops

$1,520Multiple Airlines

Mon, 2 Mar - Mon, 23 Mar

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

26h 45m

1 stop

PDX19:05Portland

$1,425

Air Canada

5 May

PDX15:25Portland

22h 55m

1 stop

SYD07:20Sydney Kingsford Smith

12 May

SYD09:20Sydney Kingsford Smith

22h 25m

1 stop

PDX14:45Portland

$1,546

Air Canada

22 June

PDX15:25Portland

22h 55m

1 stop

SYD07:20Sydney Kingsford Smith

21 July

SYD07:00Sydney Kingsford Smith

19h 31m

2 stops

PDX09:31Portland

$1,568

Hawaiian Airlines flights from Portland to Sydney

Our best Hawaiian Airlines deals on Portland to Sydney flight tickets

Hawaiian Airlines

22 Feb

PDX10:30Portland

38h 15m

1 stop

SYD19:45Sydney Kingsford Smith

8 Mar

SYD21:40Sydney Kingsford Smith

25h 47m

1 stop

PDX05:27Portland

$1,594

Hawaiian Airlines

17 Mar

PDX10:30Portland

39h 15m

1 stop

SYD19:45Sydney Kingsford Smith

24 Mar

SYD21:40Sydney Kingsford Smith

17h 07m

1 stop

PDX20:47Portland

$1,621

Fly from

Fly to

Route

Depart

Return

Price

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 5/5

17:51-06:25

1 stop19h 34m

Sydney Kingsford Smith

Tue 12/5

06:25-16:49

2 stops27h 24m

$1,409

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 26/2

06:25-10:55

2 stops33h 30m

Sydney Kingsford Smith

Tue 10/3

21:25-20:34

1 stop17h 09m

$1,412

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 26/2

06:25-10:55

2 stops33h 30m

Sydney Kingsford Smith

Tue 10/3

21:25-20:34

1 stop17h 09m

$1,414

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 27/2

14:47-06:10

1 stop20h 23m

Sydney Kingsford Smith

Sun 8/3

17:35-20:52

2 stops22h 17m

$1,418

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 27/4

09:50-07:20

1 stop28h 30m

Sydney Kingsford Smith

Wed 6/5

09:20-19:05

1 stop26h 45m

$1,425

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

13:09-07:05

1 stop24h 56m

Sydney Kingsford Smith

Sun 26/4

09:10-12:38

1 stop20h 28m

$1,498

PortlandSydney

PDX - SYD

PDXSYD

Portland

Sun 19/4

13:09-07:05

1 stop24h 56m

Sydney Kingsford Smith

Sun 26/4

17:50-23:03

2 stops22h 13m

$1,507

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 22/6

12:04-08:45

2 stops27h 41m

Sydney Kingsford Smith

Tue 21/7

09:55-20:49

2 stops27h 54m

$1,514

PortlandSydney

PDX - SYD

PDXSYD

Portland

Tue 5/5

17:49-22:10

2 stops35h 21m

Sydney Kingsford Smith

Tue 12/5

13:15-20:35

2 stops24h 20m

$1,515

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 2/3

17:39-12:35

2 stops23h 56m

Sydney Kingsford Smith

Mon 23/3

14:00-23:58

2 stops27h 58m

$1,520

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 $1,408. 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 $1,414.

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 $1,684 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 $1,264 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	18h 35m
Direct flights	None

The fastest flight from Portland to Sydney takes 18h 35m

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 18h 35m.
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 $1,296	Free cancellation	Rating 7.4 9,308 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.