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 46% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 6 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?

Delta, United Airlines, 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 6 as of October 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.

$541 Cheap Flights from Portland to Australia in 2026/27

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.

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

19h 35m1 stop Vancouver Intl

6:05 am - 9:26 amBNE Brisbane-PDX Portland

21h 21m2 stops Sydney Kingsford Smith Vancouver Intl

$1,008Air Canada

Sat, Feb 13 - Tue, Feb 23

10:10 am - 7:05 amPDX Portland-BNE Brisbane

27h 55m1 stop Vancouver Intl

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

16h 41m1 stop Vancouver Intl

$1,023Air Canada

Tue, Oct 20 - Tue, Nov 3

7:15 pm - 8:45 amPDX Portland-BNE Brisbane

19h 30m1 stop Vancouver Intl

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

21h 16m2 stops Sydney Kingsford Smith Vancouver Intl

$1,043Multiple Airlines

Mon, Nov 2 - Mon, Nov 16

3:30 pm - 7:05 amPDX Portland-BNE Brisbane

22h 35m1 stop Vancouver Intl

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

21h 16m2 stops Sydney Kingsford Smith Vancouver Intl

$1,043Multiple Airlines

Tue, Oct 20 - Tue, Nov 3

1:18 pm - 7:30 amPDX Portland-BNE Brisbane

24h 12m1 stop San Francisco

11:20 am - 6:26 pmBNE Brisbane-PDX Portland

25h 06m1 stop San Francisco

$1,056United Airlines

Mon, Feb 1 - Sat, Feb 20

3:40 pm - 7:30 amPDX Portland-BNE Brisbane

21h 50m1 stop San Francisco

11:20 am - 2:37 pmBNE Brisbane-PDX Portland

21h 17m1 stop San Francisco

$1,056United Airlines

Mon, Nov 2 - Mon, Nov 16

11:00 am - 5:50 amPDX Portland-BNE Brisbane

24h 50m2 stops Phoenix Sky Harbor Intl Los Angeles

1:10 pm - 9:59 pmBNE Brisbane-PDX Portland

25h 49m2 stops Los Angeles Phoenix Sky Harbor Intl

$1,095American Airlines

Sat, Feb 27 - Wed, Mar 24

11:00 am - 8:00 amPDX Portland-MEL Melbourne

26h 00m1 stop Los Angeles

10:10 am - 4:22 pmMEL Melbourne-PDX Portland

25h 12m1 stop Los Angeles

$1,137Delta

Sun, Nov 15 - Tue, Dec 15

1:05 pm - 8:00 amPDX Portland-MEL Melbourne

23h 55m1 stop Los Angeles

10:10 am - 12:08 pmMEL Melbourne-PDX Portland

20h 58m1 stop Los Angeles

$1,137Delta

Tue, Nov 10 - Tue, Nov 17

7:00 am - 5:50 amPDX Portland-BNE Brisbane

28h 50m1 stop Los Angeles

1:10 pm - 10:39 pmBNE Brisbane-PDX Portland

27h 29m1 stop Los Angeles

$1,202American Airlines

Sat, Jan 16 - Sat, Jan 30

Cheap last minute flights

Enter your travel dates to find the best prices.

6:55 pm - 9:15 amPDX Portland-MEL Melbourne

44h 20m2 stops Denver Intl San Francisco

11:55 am - 9:36 amMEL Melbourne-PDX Portland

39h 41m2 stops San Francisco Denver Intl

$1,292United Airlines

Thu, Oct 15 - Mon, Oct 19

6:55 pm - 9:15 amPDX Portland-MEL Melbourne

44h 20m2 stops Denver Intl San Francisco

11:55 am - 2:27 pmMEL Melbourne-PDX Portland

20h 32m1 stop San Francisco

$1,292United Airlines

Thu, Oct 15 - Mon, Oct 19

10:30 am - 6:50 pmPDX Portland-SYD Sydney Kingsford Smith

38h 20m1 stop Honolulu

6:50 pm - 8:33 pmSYD Sydney Kingsford Smith-PDX Portland

19h 43m1 stop Los Angeles

$1,349Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

10:30 am - 6:50 pmPDX Portland-SYD Sydney Kingsford Smith

38h 20m1 stop Honolulu

2:15 pm - 8:50 pmSYD Sydney Kingsford Smith-PDX Portland

24h 35m2 stops Nadi San Francisco

$1,475Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

9:30 pm - 7:30 amPDX Portland-SYD Sydney Kingsford Smith

40h 00m1 stop Los Angeles

6:50 pm - 11:16 pmSYD Sydney Kingsford Smith-PDX Portland

22h 26m1 stop Los Angeles

$1,501Alaska Airlines

Mon, Oct 12 - Mon, Oct 19

10:51 am - 9:15 amPDX Portland-MEL Melbourne

28h 24m1 stop San Francisco

11:55 am - 9:00 pmMEL Melbourne-PDX Portland

27h 05m1 stop San Francisco

$1,596United Airlines

Thu, Oct 15 - Mon, Oct 19

11:58 am - 10:30 amPDX Portland-BNE Brisbane

29h 32m2 stops Dallas/Fort Worth Sydney Kingsford Smith

2:30 pm - 10:49 pmBNE Brisbane-PDX Portland

25h 19m2 stops Sydney Kingsford Smith Los Angeles

$5,326Qantas Airways

Wed, Oct 14 - Thu, Oct 22

5:20 am - 10:30 amPDX Portland-BNE Brisbane

36h 10m2 stops Dallas/Fort Worth Sydney Kingsford Smith

2:30 pm - 11:55 pmBNE Brisbane-PDX Portland

26h 25m3 stops Sydney Kingsford Smith Los Angeles Phoenix Sky Harbor Intl

$5,337Qantas Airways

Wed, Oct 14 - Thu, Oct 22

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

18h 20m1 stop Vancouver Intl

10:00 am - 7:11 pmBNE Brisbane-PDX Portland

26h 11m1 stop Vancouver Intl

$12,651Air Canada

Wed, Oct 14 - Thu, Oct 22

7:45 pm - 11:40 amPDX Portland-SYD Sydney Kingsford Smith

21h 55m2 stops Vancouver Intl Brisbane

11:20 am - 12:54 amSYD Sydney Kingsford Smith-PDX Portland

32h 34m3 stops Vancouver Intl Toronto Pearson Intl San Francisco

$21,644Air Canada

Mon, Oct 12 - Thu, Nov 12

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Air New Zealand flights from Portland to Australia

Our best Air New Zealand deals on Portland to Australia flight tickets

Air New Zealand

Feb 1

PDX10:00 amPortland

27h 35m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 13

SYD7:25 pmSydney Kingsford Smith

42h 06m

2 stops

PDX6:31 pmPortland

$1,128

Air New Zealand

Nov 1

PDX7:10 amPortland

30h 25m

2 stops

SYD8:35 amSydney Kingsford Smith

Nov 22

SYD7:30 amSydney Kingsford Smith

32h 32m

2 stops

PDX9:02 pmPortland

$1,203

Air New Zealand

Nov 12

PDX7:10 pmPortland

44h 25m

2 stops

SYD10:35 amSydney Kingsford Smith

Nov 20

SYD11:50 amSydney Kingsford Smith

28h 12m

2 stops

PDX9:02 pmPortland

$1,215

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

Feb 23

PDX2:30 pmPortland

21h 05m

1 stop

SYD6:35 amSydney Kingsford Smith

Mar 16

SYD6:55 amSydney Kingsford Smith

32h 26m

2 stops

PDX9:21 pmPortland

$1,169

Qantas Airways

Feb 5

PDX5:06 pmPortland

18h 19m

1 stop

SYD6:25 amSydney Kingsford Smith

May 4

SYD9:45 amSydney Kingsford Smith

23h 42m

2 stops

PDX4:27 pmPortland

$1,208

Qantas Airways

Oct 14

PDX11:58 amPortland

29h 32m

2 stops

BNE10:30 amBrisbane

Oct 22

BNE2:30 pmBrisbane

25h 19m

2 stops

PDX10:49 pmPortland

$5,326

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 2/13

7:10 pm-8:45 am

1 stop19h 35m

Brisbane

Tue 2/23

6:05 am-9:26 am

2 stops21h 21m

$1,008

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Tue 10/20

10:10 am-7:05 am

1 stop27h 55m

Brisbane

Tue 11/3

10:45 am-9:26 am

1 stop16h 41m

$1,023

Quickest round-trip

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 11/2

7:15 pm-8:45 am

1 stop19h 30m

Brisbane

Mon 11/16

6:10 am-9:26 am

2 stops21h 16m

$1,043

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Tue 10/20

3:30 pm-7:05 am

1 stop22h 35m

Brisbane

Tue 11/3

6:10 am-9:26 am

2 stops21h 16m

$1,043

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 2/1

1:18 pm-7:30 am

1 stop24h 12m

Brisbane

Sat 2/20

11:20 am-6:26 pm

1 stop25h 06m

$1,056

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Mon 11/2

3:40 pm-7:30 am

1 stop21h 50m

Brisbane

Mon 11/16

11:20 am-2:37 pm

1 stop21h 17m

$1,056

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 2/27

11:00 am-5:50 am

2 stops24h 50m

Brisbane

Wed 3/24

1:10 pm-9:59 pm

2 stops25h 49m

$1,095

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Sun 11/15

11:00 am-8:00 am

1 stop26h 00m

Melbourne

Tue 12/15

10:10 am-4:22 pm

1 stop25h 12m

$1,137

PortlandMelbourne

PDX Portland - MEL Melbourne

PDXMEL

Portland

Tue 11/10

1:05 pm-8:00 am

1 stop23h 55m

Melbourne

Tue 11/17

10:10 am-12:08 pm

1 stop20h 58m

$1,137

PortlandBrisbane

PDX Portland - BNE Brisbane

PDXBNE

Portland

Sat 1/16

7:00 am-5:50 am

1 stop28h 50m

Brisbane

Sat 1/30

1:10 pm-10:39 pm

1 stop27h 29m

$1,202

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 June is, on average, the cheapest month to fly to Australia from Portland, with most prices found around $1,060. If you aren’t able to travel during the month of June, then book flights to Australia from Portland during April instead. Flights to Australia in April, while not as cheap as those in June, still average around $1,120.

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 $1,250 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 $1,028 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 22% 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	$541
Fastest flight time	19h 30m
Direct flights	None

The best one-way flight to Australia from Portland in the past 72 hours is $541. The best round-trip flight deal from Portland to Australia found on momondo in the last 72 hours is $1,008.

The fastest flight from Portland to Australia takes 19h 30m

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 6 as of October 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
Alaska Airlines	PriceFrom $222	Free Cancellation	Rating 7.9 13,039 reviews	Search Alaska Airlines flights
Qantas Airways	PriceFrom $757	Free Cancellation	Rating 7.5 1,106 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $784	Free Cancellation	Rating 7.1 11,748 reviews	Search Air Canada flights
American Airlines	PriceFrom $855	Free Cancellation	Rating 7.0 12,149 reviews	Search American Airlines flights
United Airlines	PriceFrom $866	Free Cancellation	Rating 7.4 10,331 reviews	Search United Airlines flights
Delta	PriceFrom $901	Free Cancellation	Rating 7.8 8,651 reviews	Search Delta 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.