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

United Airlines and Qantas Airways 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 November 2025, 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.

$715 Cheap Flights from Portland to Australia in 2025/26

1 adult

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15:15 - 08:45PDX-BNE

23h 30m1 stop

09:45 - 09:15BNE-PDX

16h 30m1 stop

$1,153Air Canada

Find Deal

Thu, 5 Mar - Thu, 19 Mar

09:50 - 08:45PDX-BNE

28h 55m1 stop

06:05 - 09:15BNE-PDX

20h 10m2 stops

$1,187Air Canada

Find Deal

Thu, 5 Mar - Thu, 19 Mar

19:00 - 08:45PDX-BNE

19h 45m1 stop

09:45 - 09:15BNE-PDX

16h 30m1 stop

$1,190Air Canada

Find Deal

Thu, 5 Mar - Thu, 19 Mar

19:00 - 13:25PDX-BNE

24h 25m2 stops

09:45 - 14:40BNE-PDX

21h 55m1 stop

$1,249Multiple Airlines

Find Deal

Thu, 5 Mar - Thu, 19 Mar

17:39 - 09:20PDX-SYD

21h 41m2 stops

21:25 - 20:38SYD-PDX

17h 13m1 stop

$1,320Multiple Airlines

Find Deal

Mon, 9 Mar - Tue, 24 Mar

17:50 - 06:10PDX-SYD

18h 20m1 stop

16:15 - 22:36SYD-PDX

24h 21m2 stops

$1,406Qantas Airways

Find Deal

Fri, 13 Mar - Fri, 20 Mar

16:32 - 06:10PDX-SYD

18h 38m1 stop

06:05 - 20:21SYD-PDX

33h 16m2 stops

$1,436Qantas Airways

Find Deal

Fri, 5 Dec - Wed, 10 Dec

15:50 - 09:30PDX-MEL

23h 40m1 stop

12:00 - 15:15MEL-PDX

21h 15m1 stop

$1,469American Airlines

Find Deal

Thu, 19 Mar - Tue, 24 Mar

11:48 - 09:30PDX-MEL

26h 42m2 stops

16:05 - 21:48MEL-PDX

24h 43m1 stop

$1,476American Airlines

Find Deal

Tue, 24 Feb - Sat, 7 Mar

15:50 - 13:20PDX-OOL

27h 30m2 stops

07:20 - 18:47OOL-PDX

29h 27m3 stops

$3,455United Airlines

Find Deal

Thu, 26 Feb - Mon, 2 Mar

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

13 Mar

PDX17:50Portland

18h 20m

1 stop

SYD06:10Sydney Kingsford Smith

20 Mar

SYD16:15Sydney Kingsford Smith

24h 21m

2 stops

PDX22:36Portland

$1,406

Find similar

Qantas Airways

5 Dec

PDX16:32Portland

18h 38m

1 stop

SYD06:10Sydney Kingsford Smith

10 Dec

SYD06:05Sydney Kingsford Smith

33h 16m

2 stops

PDX20:21Portland

$1,436

Find similar

Qantas Airways

24 Feb

PDX14:30Portland

24h 00m

1 stop

MEL09:30Melbourne

7 Mar

MEL12:00Melbourne

20h 25m

1 stop

PDX13:25Portland

$1,440

Find similar

Air Canada flights from Portland to Australia

Our best Air Canada deals on Portland to Australia flight tickets

Air Canada

5 Mar

PDX15:15Portland

23h 30m

1 stop

BNE08:45Brisbane

19 Mar

BNE09:45Brisbane

16h 30m

1 stop

PDX09:15Portland

$1,153

Find similar

Air Canada

5 Mar

PDX09:50Portland

28h 55m

1 stop

BNE08:45Brisbane

19 Mar

BNE06:05Brisbane

20h 10m

2 stops

PDX09:15Portland

$1,187

Find similar

Air Canada

5 Mar

PDX19:00Portland

19h 45m

1 stop

BNE08:45Brisbane

19 Mar

BNE09:45Brisbane

16h 30m

1 stop

PDX09:15Portland

$1,190

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 5/3

15:15-08:45

1 stop23h 30m

Brisbane

Thu 19/3

09:45-09:15

1 stop16h 30m

$1,153

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 5/3

09:50-08:45

1 stop28h 55m

Brisbane

Thu 19/3

06:05-09:15

2 stops20h 10m

$1,187

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 5/3

19:00-08:45

1 stop19h 45m

Brisbane

Thu 19/3

09:45-09:15

1 stop16h 30m

$1,190

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 5/3

19:00-13:25

2 stops24h 25m

Brisbane

Thu 19/3

09:45-14:40

1 stop21h 55m

$1,249

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 9/3

17:39-09:20

2 stops21h 41m

Sydney Kingsford Smith

Tue 24/3

21:25-20:38

1 stop17h 13m

$1,320

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 13/3

17:50-06:10

1 stop18h 20m

Sydney Kingsford Smith

Fri 20/3

16:15-22:36

2 stops24h 21m

$1,406

PortlandSydney

PDX - SYD

PDXSYD

Portland

Fri 5/12

16:32-06:10

1 stop18h 38m

Sydney Kingsford Smith

Wed 10/12

06:05-20:21

2 stops33h 16m

$1,436

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Thu 19/3

15:50-09:30

1 stop23h 40m

Melbourne

Tue 24/3

12:00-15:15

1 stop21h 15m

$1,469

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 24/2

11:48-09:30

2 stops26h 42m

Melbourne

Sat 7/3

16:05-21:48

1 stop24h 43m

$1,476

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Thu 26/2

15:50-13:20

2 stops27h 30m

Coolangatta Gold Coast

Mon 2/3

07:20-18:47

3 stops29h 27m

$3,455

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 $1,534. If you don’t want to visit Australia in September, then you should wait until June to fly from Portland, when ticket prices are also cheap, with an average price of $1,536.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,250. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Portland to Australia on a Sunday will generally be more expensive and average around $2,030. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is in the morning. momondo users have found flights departing from Portland to Australia in the morning for as low as $1,404. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the afternoon, with an average ticket price of $1,820. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,743 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 $1,397 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 7% 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

Direct flights	None

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 November 2025, 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 $1,284	Free cancellation	Rating 7.4 9,029 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.

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Australia

Popular Cities in Australia

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Cheap flights from Portland to Australia from $715

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Australia departing on 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Portland to Australia

Cheap return flights

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Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Air Canada flights from Portland to Australia

Our best Air Canada deals on Portland to Australia flight tickets

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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

What is the cheapest month to fly to Australia?

What is the cheapest day to depart on your flight to Australia?

What is the cheapest time of day to depart on your flight to Australia?

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

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 7% on your flight if you consider stops on a Portland to Australia flight.

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

United Airlines and Qantas Airways are the most popular carriers operating from Portland to Australia

Cheap Portland to Australia flight deals and tips

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

Direct flights

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

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

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

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

Best airlines flying from Portland to Australia

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

Why use momondo?

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

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

How can momondo help me find flights from Portland to Australia?

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

An easier way to manage your Australia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Popular Cities in Australia

Popular flights according to clicks in the last 7 days on momondo