What airlines fly to Australia?

Air Canada, United Airlines and Qantas Airways are the top three most popular airlines that fly to Australia from Portland according to our data. Air Canada is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 7 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

Alaska Airlines, Delta, and Air Canada 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?

The number of operators available for flights from Portland Airport to Australia is 7 as of August 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Australia.

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

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$561 Cheap Flights from Portland to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 pm - 7:05 amPDX Portland-BNE Brisbane

18h 20m1 stop Vancouver Intl

9:45 am - 9:26 amBNE Brisbane-PDX Portland

16h 41m1 stop Vancouver Intl

$960Air Canada

Mon, Oct 12 - Sun, Oct 25

7:10 pm - 8:45 amPDX Portland-BNE Brisbane

19h 35m1 stop Vancouver Intl

10:45 am - 9:26 amBNE Brisbane-PDX Portland

16h 41m1 stop Vancouver Intl

$960Air Canada

Mon, Feb 8 - Mon, Feb 22

7:10 pm - 8:45 amPDX Portland-BNE Brisbane

19h 35m1 stop Vancouver Intl

6:10 am - 9:26 amBNE Brisbane-PDX Portland

21h 16m2 stops Sydney Kingsford Smith Vancouver Intl

$990Multiple Airlines

Mon, Nov 2 - Mon, Nov 16

7:10 pm - 8:45 amPDX Portland-BNE Brisbane

20h 35m1 stop Vancouver Intl

6:10 am - 9:26 amBNE Brisbane-PDX Portland

21h 16m2 stops Sydney Kingsford Smith Vancouver Intl

$990Multiple Airlines

Sat, Oct 31 - Sun, Nov 8

12:01 pm - 5:00 amPDX Portland-BNE Brisbane

23h 59m2 stops Dallas/Fort Worth Los Angeles Los Angeles

8:35 pm - 10:55 amBNE Brisbane-PDX Portland

31h 20m2 stops Los Angeles Los Angeles Chicago O'Hare Intl

$1,109American Airlines

Mon, Sep 14 - Sun, Sep 27

12:01 pm - 5:00 amPDX Portland-BNE Brisbane

23h 59m2 stops Dallas/Fort Worth Los Angeles Los Angeles

8:35 pm - 10:06 pmBNE Brisbane-PDX Portland

18h 31m1 stop Los Angeles Los Angeles

$1,119American Airlines

Thu, Sep 10 - Sun, Sep 27

3:30 pm - 7:30 amPDX Portland-BNE Brisbane

22h 00m1 stop San Francisco

10:30 am - 6:31 pmBNE Brisbane-PDX Portland

25h 01m1 stop San Francisco

$1,127United Airlines

Sat, Jan 23 - Sun, Apr 18

1:39 pm - 7:30 amPDX Portland-BNE Brisbane

23h 51m1 stop San Francisco

10:30 am - 6:31 pmBNE Brisbane-PDX Portland

25h 01m1 stop San Francisco

$1,127United Airlines

Sat, Jan 23 - Sun, May 23

2:30 pm - 6:35 amPDX Portland-SYD Sydney Kingsford Smith

21h 05m1 stop Las Vegas Harry Reid Intl

11:05 am - 1:26 pmSYD Sydney Kingsford Smith-PDX Portland

21h 21m2 stops Brisbane Los Angeles Los Angeles

$1,147Qantas Airways

Tue, Jan 26 - Sat, Feb 6

2:30 pm - 10:20 amPDX Portland-SYD Sydney Kingsford Smith

24h 50m2 stops Los Angeles Los Angeles Brisbane

9:00 pm - 8:50 pmSYD Sydney Kingsford Smith-PDX Portland

18h 50m1 stop Las Vegas Harry Reid Intl

$1,176Qantas Airways

Thu, Jan 28 - Fri, Feb 12

Cheap last minute flights

Enter your travel dates to find the best prices.

5:36 pm - 11:55 amPDX Portland-BNE Brisbane

25h 19m2 stops San Francisco Sydney Kingsford Smith

8:35 pm - 11:59 pmBNE Brisbane-PDX Portland

20h 24m1 stop Los Angeles Los Angeles

$1,106Qantas Airways

Tue, Aug 18 - Fri, Aug 28

7:45 pm - 7:05 amPDX Portland-BNE Brisbane

18h 20m1 stop Vancouver Intl

10:00 am - 9:31 amBNE Brisbane-PDX Portland

16h 31m1 stop Vancouver Intl

$1,110Air Canada

Tue, Aug 18 - Fri, Aug 28

8:00 am - 6:50 pmPDX Portland-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 8:50 pmSYD Sydney Kingsford Smith-PDX Portland

17h 05m1 stop Honolulu

$1,164Alaska Airlines

Sat, Aug 22 - Sat, Oct 3

8:00 am - 6:50 pmPDX Portland-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 8:46 pmSYD Sydney Kingsford Smith-PDX Portland

17h 01m1 stop Honolulu

$1,167Alaska Airlines

Fri, Aug 21 - Fri, Aug 28

7:45 pm - 8:40 pmPDX Portland-SYD Sydney Kingsford Smith

31h 55m2 stops Vancouver Intl Brisbane

9:20 am - 7:06 pmSYD Sydney Kingsford Smith-PDX Portland

26h 46m1 stop Vancouver Intl

$1,226Air Canada

Sat, Aug 22 - Sat, Oct 3

2:53 pm - 9:45 amPDX Portland-SYD Sydney Kingsford Smith

25h 52m2 stops Los Angeles Los Angeles Melbourne

9:25 pm - 10:51 pmSYD Sydney Kingsford Smith-PDX Portland

18h 26m1 stop San Francisco

$1,270Qantas Airways

Fri, Aug 21 - Fri, Aug 28

5:00 am - 7:00 amPDX Portland-SYD Sydney Kingsford Smith

33h 00m2 stops Denver Intl Los Angeles Los Angeles

9:30 am - 6:19 pmSYD Sydney Kingsford Smith-PDX Portland

25h 49m3 stops Los Angeles Los Angeles Denver Intl San Francisco

$1,293United Airlines

Fri, Aug 21 - Wed, Sep 2

10:50 am - 7:00 amPDX Portland-SYD Sydney Kingsford Smith

27h 10m2 stops Denver Intl Los Angeles Los Angeles

10:20 am - 6:19 pmSYD Sydney Kingsford Smith-PDX Portland

24h 59m1 stop San Francisco

$1,293United Airlines

Fri, Aug 21 - Wed, Sep 2

10:50 am - 6:50 amPDX Portland-SYD Sydney Kingsford Smith

27h 00m1 stop Los Angeles Los Angeles

9:15 am - 4:33 pmSYD Sydney Kingsford Smith-PDX Portland

24h 18m1 stop Los Angeles Los Angeles

$1,427Delta

Fri, Aug 21 - Wed, Sep 2

6:35 am - 11:25 pmPDX Portland-BNE Brisbane

47h 50m2 stops Los Angeles Los Angeles Sydney Kingsford Smith

7:35 am - 11:59 pmBNE Brisbane-PDX Portland

33h 24m2 stops Sydney Kingsford Smith Los Angeles Los Angeles

$2,862Qantas Airways

Tue, Aug 18 - Fri, Aug 28

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Alaska Airlines flights from Portland to Australia

Our best Alaska Airlines deals on Portland to Australia flight tickets

Alaska Airlines

Sep 3

PDX8:00 amPortland

17h 50m

1 stop

SYD6:50 pmSydney Kingsford Smith

Sep 20

SYD8:45 pmSydney Kingsford Smith

26h 29m

1 stop

PDX6:14 amPortland

$1,135

Alaska Airlines

Sep 3

PDX8:00 amPortland

17h 50m

1 stop

SYD6:50 pmSydney Kingsford Smith

Sep 20

SYD8:45 pmSydney Kingsford Smith

26h 29m

1 stop

PDX6:14 amPortland

$1,140

Alaska Airlines

Aug 26

PDX10:30 amPortland

39h 20m

1 stop

SYD6:50 pmSydney Kingsford Smith

Sep 8

SYD8:45 pmSydney Kingsford Smith

17h 05m

1 stop

PDX8:50 pmPortland

$1,147

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

Aug 18

PDX5:36 pmPortland

25h 19m

2 stops

BNE11:55 amBrisbane

Aug 28

BNE8:35 pmBrisbane

20h 24m

1 stop

PDX11:59 pmPortland

$1,106

Qantas Airways

Nov 11

PDX5:04 pmPortland

26h 16m

2 stops

SYD2:20 pmSydney Kingsford Smith

Dec 4

SYD9:25 pmSydney Kingsford Smith

18h 23m

1 stop

PDX8:48 pmPortland

$1,176

Qantas Airways

Sep 29

PDX5:53 pmPortland

19h 32m

1 stop

SYD6:25 amSydney Kingsford Smith

Oct 6

SYD3:15 pmSydney Kingsford Smith

25h 34m

2 stops

PDX10:49 pmPortland

$1,190

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 10/12

7:45 pm-7:05 am

1 stop18h 20m

Brisbane

Sun 10/25

9:45 am-9:26 am

1 stop16h 41m

$960

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 2/8

7:10 pm-8:45 am

1 stop19h 35m

Brisbane

Mon 2/22

10:45 am-9:26 am

1 stop16h 41m

$960

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 11/2

7:10 pm-8:45 am

1 stop19h 35m

Brisbane

Mon 11/16

6:10 am-9:26 am

2 stops21h 16m

$990

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 10/31

7:10 pm-8:45 am

1 stop20h 35m

Brisbane

Sun 11/8

6:10 am-9:26 am

2 stops21h 16m

$990

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 9/14

12:01 pm-5:00 am

2 stops23h 59m

Brisbane

Sun 9/27

8:35 pm-10:55 am

2 stops31h 20m

$1,109

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Thu 9/10

12:01 pm-5:00 am

2 stops23h 59m

Brisbane

Sun 9/27

8:35 pm-10:06 pm

1 stop18h 31m

$1,119

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 1/23

3:30 pm-7:30 am

1 stop22h 00m

Brisbane

Sun 4/18

10:30 am-6:31 pm

1 stop25h 01m

$1,127

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 1/23

1:39 pm-7:30 am

1 stop23h 51m

Brisbane

Sun 5/23

10:30 am-6:31 pm

1 stop25h 01m

$1,127

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Tue 1/26

2:30 pm-6:35 am

1 stop21h 05m

Sydney Kingsford Smith

Sat 2/6

11:05 am-1:26 pm

2 stops21h 21m

$1,147

PortlandSydney

PDX Portland - SYD Sydney Kingsford Smith

PDXSYD

Portland

Thu 1/28

2:30 pm-10:20 am

2 stops24h 50m

Sydney Kingsford Smith

Fri 2/12

9:00 pm-8:50 pm

1 stop18h 50m

$1,176

Flights are sorted by cheapest round-trip 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?

The month of February is, on average, the cheapest month to fly to Australia from Portland, with most prices found around $1,061. If you aren’t able to travel during the month of February, then book flights to Australia from Portland during June instead. Flights to Australia in June, while not as cheap as those in February, still average around $1,072.

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 $1,239 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Portland for as low as $862 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 17% 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

Best Price Found	$561
Fastest flight time	17h 45m
Direct flights	None

The best one-way flight to Australia from Portland in the past 72 hours is $561. The best round-trip flight deal from Portland to Australia found on momondo in the last 72 hours is $960.

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

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?
The number of operators available for flights from Portland Airport to Australia is 7 as of August 2026.
How old do you have to be to fly from Portland Airport to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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
Air Canada	PriceFrom $372	Free Cancellation	Rating 7.1 11,489 reviews	Search Air Canada flights
Delta	PriceFrom $497	Free Cancellation	Rating 7.8 8,503 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $535	Free Cancellation	Rating 7.8 2,817 reviews	Search Hawaiian Airlines flights
Qantas Airways	PriceFrom $757	Free Cancellation	Rating 7.5 1,083 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $855	Free Cancellation	Rating 7.1 11,952 reviews	Search American Airlines flights
United Airlines	PriceFrom $868	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $995	Free Cancellation	Rating 7.9 12,811 reviews	Search Alaska Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Portland.

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

Yes. momondo enables you to select and highlight flights to Australia from Portland with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Australia from Portland.

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

Of course. momondo tracks the price of Portland to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.