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

Alaska Airlines, Qantas Airways, and American 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.

$712 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.

15:15 - 08:45

PDX

BNE

24h 30m

1 stop

10:45 - 18:31

BNE

PDX

25h 46m

1 stop

$1,477Air Canada

Sat, 31 Oct - Sun, 8 Nov

07:00 - 08:45

PDX

BNE

31h 45m

1 stop

10:45 - 14:41

BNE

PDX

21h 56m

1 stop

$1,491Air Canada

Mon, 23 Nov - Tue, 1 Dec

19:45 - 07:05

PDX

BNE

18h 20m

1 stop

06:10 - 09:26

BNE

PDX

21h 16m

2 stops

$1,514Multiple Airlines

Mon, 31 Aug - Wed, 18 Nov

19:10 - 08:45

PDX

BNE

20h 35m

1 stop

06:10 - 09:26

BNE

PDX

21h 16m

2 stops

$1,515Multiple Airlines

Sat, 31 Oct - Sun, 8 Nov

19:10 - 08:45

PDX

BNE

19h 35m

1 stop

06:10 - 09:26

BNE

PDX

21h 16m

2 stops

$1,517Multiple Airlines

Mon, 2 Nov - Mon, 16 Nov

19:45 - 07:05

PDX

BNE

18h 20m

1 stop

06:10 - 09:26

BNE

PDX

21h 16m

2 stops

$1,518Multiple Airlines

Mon, 31 Aug - Wed, 18 Nov

07:46 - 18:50

PDX

SYD

18h 04m

1 stop

20:45 - 06:14

SYD

PDX

26h 29m

1 stop

$1,528Alaska Airlines

Wed, 29 Jul - Sun, 30 Aug

07:46 - 18:50

PDX

SYD

18h 04m

1 stop

20:45 - 06:11

SYD

PDX

26h 26m

1 stop

$1,531Alaska Airlines

Mon, 3 Aug - Sun, 9 Aug

11:15 - 10:40

PDX

OOL

30h 25m

2 stops

07:05 - 18:19

OOL

PDX

28h 14m

2 stops

$1,900United Airlines

Sun, 30 Aug - Sun, 6 Sep

12:01 - 18:45

PDX

PER

38h 44m

2 stops

22:45 - 16:50

PER

PDX

34h 05m

2 stops

$1,917Qatar Airways

Sun, 8 Nov - Fri, 13 Nov

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Alaska Airlines flights from Portland to Australia

Our best Alaska Airlines deals on Portland to Australia flight tickets

Alaska Airlines

29 July

PDX07:46Portland

18h 04m

1 stop

SYD18:50Sydney Kingsford Smith

30 Aug

SYD20:45Sydney Kingsford Smith

26h 29m

1 stop

PDX06:14Portland

$1,528

Alaska Airlines

3 Aug

PDX07:46Portland

18h 04m

1 stop

SYD18:50Sydney Kingsford Smith

9 Aug

SYD20:45Sydney Kingsford Smith

26h 26m

1 stop

PDX06:11Portland

$1,531

Alaska Airlines

28 Oct

PDX08:00Portland

17h 45m

1 stop

SYD19:45Sydney Kingsford Smith

1 Nov

SYD21:40Sydney Kingsford Smith

18h 09m

1 stop

PDX20:49Portland

$1,533

ANA flights from Portland to Australia

Our best ANA deals on Portland to Australia flight tickets

ANA

25 Aug

PDX10:10Portland

30h 15m

2 stops

SYD09:25Sydney Kingsford Smith

1 Sept

SYD11:45Sydney Kingsford Smith

44h 02m

2 stops

PDX14:47Portland

$1,664

ANA

15 Aug

PDX10:10Portland

30h 15m

2 stops

SYD09:25Sydney Kingsford Smith

21 Aug

SYD20:55Sydney Kingsford Smith

39h 16m

2 stops

PDX19:11Portland

$1,687

ANA

14 Aug

PDX19:45Portland

23h 35m

2 stops

MEL12:20Melbourne

21 Aug

MEL06:00Melbourne

30h 11m

2 stops

PDX19:11Portland

$1,833

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 31/10

15:15-08:45

1 stop24h 30m

Brisbane

Sun 8/11

10:45-18:31

1 stop25h 46m

$1,477

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 23/11

07:00-08:45

1 stop31h 45m

Brisbane

Tue 1/12

10:45-14:41

1 stop21h 56m

$1,491

Fastest return journey

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 31/8

19:45-07:05

1 stop18h 20m

Brisbane

Wed 18/11

06:10-09:26

2 stops21h 16m

$1,514

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 31/10

19:10-08:45

1 stop20h 35m

Brisbane

Sun 8/11

06:10-09:26

2 stops21h 16m

$1,515

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 2/11

19:10-08:45

1 stop19h 35m

Brisbane

Mon 16/11

06:10-09:26

2 stops21h 16m

$1,517

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 31/8

19:45-07:05

1 stop18h 20m

Brisbane

Wed 18/11

06:10-09:26

2 stops21h 16m

$1,518

PortlandSydney

PDX - SYD

PDXSYD

Portland

Wed 29/7

07:46-18:50

1 stop18h 04m

Sydney Kingsford Smith

Sun 30/8

20:45-06:14

1 stop26h 29m

$1,528

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 3/8

07:46-18:50

1 stop18h 04m

Sydney Kingsford Smith

Sun 9/8

20:45-06:11

1 stop26h 26m

$1,531

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Sun 30/8

11:15-10:40

2 stops30h 25m

Coolangatta Gold Coast

Sun 6/9

07:05-18:19

2 stops28h 14m

$1,900

PortlandPerth

PDX - PER

PDXPER

Portland

Sun 8/11

12:01-18:45

2 stops38h 44m

Perth

Fri 13/11

22:45-16:50

2 stops34h 05m

$1,917

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, April 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 $253. If you don’t want to visit Australia in April, then you should wait until March to fly from Portland, when ticket prices are also cheap, with an average price of $532.

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 $1,740 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 $1,500 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 50m
Direct flights	None

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

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 $733	Free cancellation	Rating 7.4 9,993 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.