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

Alaska Airlines, Qantas Airways, and Singapore 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 July 2026, there is 1 operator 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.

$699 Cheap Flights from Portland to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Australia

Return

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 - 09:31

BNE

PDX

16h 31m

1 stop

$1,475Air Canada

Mon, 7 Sep - Mon, 14 Sep

10:10 - 07:05

PDX

BNE

27h 55m

1 stop

10:45 - 09:26

BNE

PDX

16h 41m

1 stop

$1,475Air Canada

Tue, 20 Oct - Tue, 3 Nov

07:00 - 08:45

PDX

BNE

32h 45m

1 stop

10:45 - 09:26

BNE

PDX

16h 41m

1 stop

$1,475Air Canada

Sat, 31 Oct - Sun, 8 Nov

19:10 - 08:45

PDX

BNE

19h 35m

1 stop

10:45 - 18:31

BNE

PDX

25h 46m

1 stop

$1,475Air Canada

Mon, 2 Nov - Mon, 16 Nov

15:30 - 07:05

PDX

BNE

22h 35m

1 stop

10:45 - 18:31

BNE

PDX

25h 46m

1 stop

$1,475Air Canada

Mon, 31 Aug - Wed, 18 Nov

15:30 - 07:05

PDX

BNE

22h 35m

1 stop

10:00 - 19:11

BNE

PDX

26h 11m

1 stop

$1,475Air Canada

Wed, 12 Aug - Wed, 26 Aug

15:30 - 07:05

PDX

BNE

22h 35m

1 stop

10:00 - 14:46

BNE

PDX

21h 46m

1 stop

$1,488Air Canada

Mon, 7 Sep - Mon, 14 Sep

06:48 - 09:30

PDX

MEL

31h 42m

1 stop

22:45 - 23:10

MEL

PDX

19h 25m

1 stop

$1,495Qantas Airways

Wed, 4 Nov - Wed, 11 Nov

12:45 - 06:30

PDX

BNE

24h 45m

2 stops

10:30 - 17:49

BNE

PDX

24h 19m

2 stops

$1,538United Airlines

Wed, 12 Aug - Wed, 26 Aug

07:10 - 06:30

PDX

BNE

30h 20m

2 stops

10:30 - 12:00

BNE

PDX

18h 30m

1 stop

$1,538United Airlines

Wed, 12 Aug - Wed, 26 Aug

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Alaska Airlines flights from Portland to Australia

Our best Alaska Airlines deals on Portland to Australia flight tickets

Alaska Airlines

17 Aug

PDX07:46Portland

18h 04m

1 stop

SYD18:50Sydney Kingsford Smith

30 Aug

SYD20:45Sydney Kingsford Smith

26h 29m

1 stop

PDX06:14Portland

$1,498

Alaska Airlines

17 Aug

PDX07:46Portland

18h 04m

1 stop

SYD18:50Sydney Kingsford Smith

30 Aug

SYD20:45Sydney Kingsford Smith

26h 29m

1 stop

PDX06:14Portland

$1,518

Alaska Airlines

17 Aug

PDX07:46Portland

18h 04m

1 stop

SYD18:50Sydney Kingsford Smith

23 Aug

SYD20:45Sydney Kingsford Smith

26h 29m

1 stop

PDX06:14Portland

$1,574

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

4 Nov

PDX06:48Portland

31h 42m

1 stop

MEL09:30Melbourne

11 Nov

MEL22:45Melbourne

19h 25m

1 stop

PDX23:10Portland

$1,495

Qantas Airways

14 Sept

PDX17:55Portland

20h 10m

1 stop

SYD07:05Sydney Kingsford Smith

28 Sept

SYD17:50Sydney Kingsford Smith

21h 05m

1 stop

PDX21:55Portland

$1,535

Qantas Airways

5 Nov

PDX17:00Portland

22h 20m

2 stops

SYD10:20Sydney Kingsford Smith

18 Nov

SYD21:25Sydney Kingsford Smith

18h 25m

1 stop

PDX20:50Portland

$1,553

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 7/9

15:30-07:05

1 stop22h 35m

Brisbane

Mon 14/9

10:00-09:31

1 stop16h 31m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 20/10

10:10-07:05

1 stop27h 55m

Brisbane

Tue 3/11

10:45-09:26

1 stop16h 41m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 31/10

07:00-08:45

1 stop32h 45m

Brisbane

Sun 8/11

10:45-09:26

1 stop16h 41m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 2/11

19:10-08:45

1 stop19h 35m

Brisbane

Mon 16/11

10:45-18:31

1 stop25h 46m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 31/8

15:30-07:05

1 stop22h 35m

Brisbane

Wed 18/11

10:45-18:31

1 stop25h 46m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 12/8

15:30-07:05

1 stop22h 35m

Brisbane

Wed 26/8

10:00-19:11

1 stop26h 11m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 7/9

15:30-07:05

1 stop22h 35m

Brisbane

Mon 14/9

10:00-14:46

1 stop21h 46m

$1,488

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Wed 4/11

06:48-09:30

1 stop31h 42m

Melbourne

Wed 11/11

22:45-23:10

1 stop19h 25m

$1,495

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 12/8

12:45-06:30

2 stops24h 45m

Brisbane

Wed 26/8

10:30-17:49

2 stops24h 19m

$1,538

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 12/8

07:10-06:30

2 stops30h 20m

Brisbane

Wed 26/8

10:30-12:00

1 stop18h 30m

$1,538

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, February 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 $1,535. If you don’t want to visit Australia in February, then you should wait until June to fly from Portland, when ticket prices are also cheap, with an average price of $1,543.

How far in advance should I book a flight from Portland 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 $1,766 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 $1,509 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 32% 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	17h 44m
Direct flights	None

The fastest flight from Portland to Australia takes 17h 44m

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

Search flight deals

Frequently asked questions about flying 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 July 2026, there is 1 operator 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 $737	Free cancellation	Rating 7.4 10,046 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.