What is the cheapest airline that flies from Portland to Australia?

Air Canada and United Airlines are the most popular carriers operating from Portland to Australia

When did momondo last update prices for flights from Portland Airport to Australia?

Prices for flights from Portland Airport to Australia refresh daily.

How many operators does momondo search for flights from Portland Airport to Australia?

As of March 2026, there are 2 operators available to choose from for flights from Portland Airport to Australia.

How old do you have to be to fly from Portland Airport to Australia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Australia.

What documentation or ID do you need to fly to Australia?

The travel and health documents required for your trip to Australia 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 licence, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$564 Cheap Flights from Portland to Australia in 2026

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Find the cheapest flights from Portland to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:30 - 07:05

PDX

BNE

22h 35m

1 stop

10:00 - 19:05

BNE

PDX

26h 05m

1 stop

$1,123Air Canada

Sun, 3 May - Sun, 17 May

15:15 - 07:05

PDX

BNE

22h 50m

1 stop

10:00 - 14:40

BNE

PDX

21h 40m

1 stop

$1,140Multiple Airlines

Sat, 18 Apr - Thu, 23 Apr

10:10 - 07:05

PDX

BNE

27h 55m

1 stop

20:40 - 09:30

BNE

PDX

29h 50m

2 stops

$1,164Multiple Airlines

Wed, 13 May - Wed, 27 May

19:45 - 11:30

PDX

BNE

22h 45m

2 stops

10:00 - 19:05

BNE

PDX

26h 05m

1 stop

$1,171Air Canada

Sun, 3 May - Sun, 17 May

15:15 - 12:00

PDX

BNE

27h 45m

2 stops

10:00 - 18:30

BNE

PDX

25h 30m

1 stop

$1,174Multiple Airlines

Sat, 18 Apr - Thu, 23 Apr

10:10 - 07:05

PDX

BNE

27h 55m

1 stop

10:00 - 09:30

BNE

PDX

16h 30m

1 stop

$1,177Air Canada

Sun, 3 May - Sun, 17 May

14:56 - 18:10

PDX

TSV

34h 14m

2 stops

07:05 - 21:14

TSV

PDX

55h 09m

2 stops

$1,895Qantas Airways

Fri, 7 Aug - Tue, 11 Aug

12:31 - 15:35

PDX

OOL

34h 04m

2 stops

18:00 - 13:26

OOL

PDX

36h 26m

2 stops

$1,946Qantas Airways

Thu, 27 Aug - Mon, 31 Aug

13:52 - 18:35

PDX

PER

37h 43m

2 stops

22:45 - 19:34

PER

PDX

35h 49m

2 stops

$1,991Qatar Airways

Fri, 24 Apr - Fri, 1 May

13:52 - 11:55

PDX

PER

31h 03m

2 stops

22:45 - 18:36

PER

PDX

34h 51m

2 stops

$2,062Qatar Airways

Sat, 25 Apr - Sat, 2 May

Singapore Airlines flights from Portland to Australia

Our best Singapore Airlines deals on Portland to Australia flight tickets

Singapore Airlines

26 July

PDX19:45Portland

21h 55m

2 stops

SYD10:40Sydney Kingsford Smith

5 Aug

SYD09:20Sydney Kingsford Smith

26h 46m

1 stop

PDX19:06Portland

$1,451

Singapore Airlines

10 Apr

PDX15:15Portland

37h 10m

2 stops

SYD21:25Sydney Kingsford Smith

21 Apr

SYD09:20Sydney Kingsford Smith

22h 20m

1 stop

PDX14:40Portland

$1,485

Air Canada flights from Portland to Australia

Our best Air Canada deals on Portland to Australia flight tickets

Air Canada

3 May

PDX15:30Portland

22h 35m

1 stop

BNE07:05Brisbane

17 May

BNE10:00Brisbane

26h 05m

1 stop

PDX19:05Portland

$1,123

Air Canada

3 May

PDX19:45Portland

22h 45m

2 stops

BNE11:30Brisbane

17 May

BNE10:00Brisbane

26h 05m

1 stop

PDX19:05Portland

$1,171

Air Canada

3 May

PDX10:10Portland

27h 55m

1 stop

BNE07:05Brisbane

17 May

BNE10:00Brisbane

16h 30m

1 stop

PDX09:30Portland

$1,177

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/5

15:30-07:05

1 stop22h 35m

Brisbane

Sun 17/5

10:00-19:05

1 stop26h 05m

$1,123

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 18/4

15:15-07:05

1 stop22h 50m

Brisbane

Thu 23/4

10:00-14:40

1 stop21h 40m

$1,140

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 13/5

10:10-07:05

1 stop27h 55m

Brisbane

Wed 27/5

20:40-09:30

2 stops29h 50m

$1,164

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/5

19:45-11:30

2 stops22h 45m

Brisbane

Sun 17/5

10:00-19:05

1 stop26h 05m

$1,171

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 18/4

15:15-12:00

2 stops27h 45m

Brisbane

Thu 23/4

10:00-18:30

1 stop25h 30m

$1,174

Fastest return journey

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/5

10:10-07:05

1 stop27h 55m

Brisbane

Sun 17/5

10:00-09:30

1 stop16h 30m

$1,177

PortlandTownsville

PDX - TSV

PDXTSV

Portland

Fri 7/8

14:56-18:10

2 stops34h 14m

Townsville

Tue 11/8

07:05-21:14

2 stops55h 09m

$1,895

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Thu 27/8

12:31-15:35

2 stops34h 04m

Coolangatta Gold Coast

Mon 31/8

18:00-13:26

2 stops36h 26m

$1,946

PortlandPerth

PDX - PER

PDXPER

Portland

Fri 24/4

13:52-18:35

2 stops37h 43m

Perth

Fri 1/5

22:45-19:34

2 stops35h 49m

$1,991

PortlandPerth

PDX - PER

PDXPER

Portland

Sat 25/4

13:52-11:55

2 stops31h 03m

Perth

Sat 2/5

22:45-18:36

2 stops34h 51m

$2,062

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 Australia

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 cheapest month to fly to Australia?

In general, September is the cheapest month to fly from Portland to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,433. If you don’t want to visit Australia in September, then you should wait until October to fly from Portland, when ticket prices are also cheap, with an average price of $1,628.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,748 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Portland for as low as $1,282 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 26% on your flight if you consider stops on a Portland to Australia flight.

Cheap Portland to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Australia

Fastest flight time	19h 11m
Direct flights	None

The fastest flight from Portland to Australia takes 19h 11m

There are no direct flights from Portland to Australia. There are no popular flight routes from Portland to Australia.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Australia?
Prices for flights from Portland Airport to Australia refresh daily.
How many operators does momondo search for flights from Portland Airport to Australia?
As of March 2026, there are 2 operators available to choose from for flights from Portland Airport to Australia.
How old do you have to be to fly from Portland Airport to Australia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents required for your trip to Australia 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 licence, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland to Australia

Compare and see reviews for airlines that fly from Portland to Australia with momondo

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $734	Free cancellation	Rating 7.4 9,423 reviews		Search United Airlines flights

Why use momondo?

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

Finding the right flight to Australia 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 Australia quick and easy, saving you time and money.

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

Flights from Portland to Australia 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 Australia?

Once all potential Portland to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Australia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Australia 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.