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

American Airlines, Air Canada, 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 January 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.

$769 Cheap Flights from Portland to Australia in 2026

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

09:50 - 08:45

PDX

BNE

28h 55m1 stop

10:45 - 18:30

BNE

PDX

25h 45m1 stop

$1,192Air Canada

Sun, 22 Feb - Sun, 1 Mar

15:15 - 08:45

PDX

BNE

23h 30m1 stop

10:45 - 14:40

BNE

PDX

21h 55m1 stop

$1,193Air Canada

Sat, 21 Feb - Sun, 1 Mar

19:05 - 13:25

PDX

BNE

24h 20m2 stops

09:45 - 09:15

BNE

PDX

16h 30m1 stop

$1,219Multiple Airlines

Thu, 5 Mar - Thu, 19 Mar

19:05 - 15:30

PDX

BNE

26h 25m2 stops

10:45 - 09:15

BNE

PDX

16h 30m1 stop

$1,220Multiple Airlines

Sat, 21 Feb - Sun, 1 Mar

06:25 - 07:25

PDX

SYD

30h 00m1 stop

07:05 - 17:13

SYD

PDX

29h 08m2 stops

$1,416Qantas Airways

Mon, 23 Feb - Mon, 2 Mar

06:25 - 17:40

PDX

SYD

40h 15m2 stops

11:20 - 21:52

SYD

PDX

28h 32m1 stop

$1,438Qantas Airways

Thu, 19 Feb - Fri, 13 Mar

14:48 - 10:45

PDX

OOL

26h 57m2 stops

11:55 - 18:41

OOL

PDX

23h 46m2 stops

$1,682Air New Zealand

Wed, 13 May - Wed, 27 May

21:30 - 22:20

PDX

PER

56h 50m2 stops

18:50 - 16:41

PER

PDX

37h 51m2 stops

$1,959Air New Zealand

Mon, 23 Feb - Mon, 2 Mar

13:40 - 09:40

PDX

OOL

26h 00m2 stops

07:20 - 12:38

OOL

PDX

23h 18m2 stops

$2,282United Airlines

Fri, 13 Feb - Tue, 17 Feb

19:57 - 14:20

PDX

OOL

24h 23m2 stops

07:20 - 18:55

OOL

PDX

29h 35m3 stops

$2,315United Airlines

Sun, 22 Feb - Sun, 1 Mar

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

23 Feb

PDX06:25Portland

30h 00m

1 stop

SYD07:25Sydney Kingsford Smith

2 Mar

SYD07:05Sydney Kingsford Smith

29h 08m

2 stops

PDX17:13Portland

$1,416

Qantas Airways

19 Feb

PDX06:25Portland

40h 15m

2 stops

SYD17:40Sydney Kingsford Smith

13 Mar

SYD11:20Sydney Kingsford Smith

28h 32m

1 stop

PDX21:52Portland

$1,438

Qantas Airways

27 Jan

PDX15:22Portland

20h 23m

1 stop

BNE05:45Brisbane

3 Feb

BNE19:40Brisbane

18h 54m

1 stop

PDX20:34Portland

$1,440

Air Canada flights from Portland to Australia

Our best Air Canada deals on Portland to Australia flight tickets

Air Canada

22 Feb

PDX09:50Portland

28h 55m

1 stop

BNE08:45Brisbane

1 Mar

BNE10:45Brisbane

25h 45m

1 stop

PDX18:30Portland

$1,192

Air Canada

21 Feb

PDX15:15Portland

23h 30m

1 stop

BNE08:45Brisbane

1 Mar

BNE10:45Brisbane

21h 55m

1 stop

PDX14:40Portland

$1,193

Air Canada

21 Feb

PDX19:05Portland

26h 25m

2 stops

BNE15:30Brisbane

1 Mar

BNE10:45Brisbane

16h 30m

1 stop

PDX09:15Portland

$1,226

Fly from

Fly to

Route

Depart

Return

Price

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 22/2

09:50-08:45

1 stop28h 55m

Brisbane

Sun 1/3

10:45-18:30

1 stop25h 45m

$1,192

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 21/2

15:15-08:45

1 stop23h 30m

Brisbane

Sun 1/3

10:45-14:40

1 stop21h 55m

$1,193

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 5/3

19:05-13:25

2 stops24h 20m

Brisbane

Thu 19/3

09:45-09:15

1 stop16h 30m

$1,219

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 21/2

19:05-15:30

2 stops26h 25m

Brisbane

Sun 1/3

10:45-09:15

1 stop16h 30m

$1,220

PortlandSydney

PDX - SYD

PDXSYD

Portland

Mon 23/2

06:25-07:25

1 stop30h 00m

Sydney Kingsford Smith

Mon 2/3

07:05-17:13

2 stops29h 08m

$1,416

PortlandSydney

PDX - SYD

PDXSYD

Portland

Thu 19/2

06:25-17:40

2 stops40h 15m

Sydney Kingsford Smith

Fri 13/3

11:20-21:52

1 stop28h 32m

$1,438

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Wed 13/5

14:48-10:45

2 stops26h 57m

Coolangatta Gold Coast

Wed 27/5

11:55-18:41

2 stops23h 46m

$1,682

PortlandPerth

PDX - PER

PDXPER

Portland

Mon 23/2

21:30-22:20

2 stops56h 50m

Perth

Mon 2/3

18:50-16:41

2 stops37h 51m

$1,959

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Fri 13/2

13:40-09:40

2 stops26h 00m

Coolangatta Gold Coast

Tue 17/2

07:20-12:38

2 stops23h 18m

$2,282

PortlandCoolangatta

PDX - OOL

PDXOOL

Portland

Sun 22/2

19:57-14:20

2 stops24h 23m

Coolangatta Gold Coast

Sun 1/3

07:20-18:55

3 stops29h 35m

$2,315

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, June 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 $1,494. If you don’t want to visit Australia in June, then you should wait until September to fly from Portland, when ticket prices are also cheap, with an average price of $1,494.

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 $1,764 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 $1,341 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 14% 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 45m
Direct flights	None

The fastest flight from Portland to Australia takes 17h 45m

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 January 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 $1,347	Free cancellation	Rating 7.4 9,145 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.