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 39% 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?

Qantas Airways and United 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?

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

$424 Cheap Flights from Portland to Australia in 2026

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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.

7:05 pm - 2:15 pm

PDX

MEL

24h 10m

2 stops

7:10 am - 9:15 am

MEL

PDX

20h 05m

2 stops

$818Multiple Airlines

Tue, Feb 24 - Sat, Mar 14

9:53 am - 10:25 am

PDX

BNE

31h 32m

2 stops

11:50 am - 8:48 pm

BNE

PDX

25h 58m

2 stops

$833Multiple Airlines

Fri, Mar 13 - Fri, Mar 20

3:15 pm - 8:45 am

PDX

BNE

23h 30m

1 stop

9:45 am - 6:30 pm

BNE

PDX

25h 45m

1 stop

$866Air Canada

Thu, Mar 5 - Thu, Mar 19

3:15 pm - 8:45 am

PDX

BNE

23h 30m

1 stop

10:00 am - 6:30 pm

BNE

PDX

25h 30m

1 stop

$874Air Canada

Sun, Feb 22 - Sun, Apr 26

2:30 pm - 5:10 pm

PDX

BNE

32h 40m

2 stops

7:40 pm - 11:42 pm

BNE

PDX

21h 02m

1 stop

$903Qantas Airways

Mon, Mar 2 - Mon, Mar 9

2:30 pm - 9:30 am

PDX

MEL

24h 00m

1 stop

12:00 pm - 5:13 pm

MEL

PDX

24h 13m

1 stop

$956Qantas Airways

Tue, Feb 24 - Sat, Mar 7

12:04 pm - 5:00 am

PDX

MEL

22h 56m

1 stop

12:00 pm - 5:08 pm

MEL

PDX

23h 08m

1 stop

$958American Airlines

Sat, Mar 14 - Sat, Mar 21

6:00 am - 5:00 am

PDX

MEL

28h 00m

1 stop

12:00 pm - 4:08 pm

MEL

PDX

23h 08m

1 stop

$959American Airlines

Mon, Feb 9 - Sun, Mar 8

7:49 pm - 9:20 am

PDX

ADL

20h 01m

1 stop

2:15 pm - 9:10 pm

ADL

PDX

24h 25m

2 stops

$1,116United Airlines

Mon, Mar 9 - Mon, Mar 16

7:49 pm - 8:30 am

PDX

ADL

19h 11m

1 stop

2:15 pm - 11:09 pm

ADL

PDX

26h 24m

1 stop

$1,218United Airlines

Sat, Mar 14 - Sat, Mar 21

Qantas Airways flights from Portland to Australia

Our best Qantas Airways deals on Portland to Australia flight tickets

Qantas Airways

Mar 2

PDX2:30 pmPortland

32h 40m

2 stops

BNE5:10 pmBrisbane

Mar 9

BNE7:40 pmBrisbane

21h 02m

1 stop

PDX11:42 pmPortland

$903

Qantas Airways

Feb 24

PDX2:30 pmPortland

24h 00m

1 stop

MEL9:30 amMelbourne

Mar 7

MEL12:00 pmMelbourne

24h 13m

1 stop

PDX5:13 pmPortland

$956

Qantas Airways

Feb 26

PDX6:25 amPortland

36h 30m

2 stops

SYD1:55 pmSydney Kingsford Smith

Mar 10

SYD9:25 pmSydney Kingsford Smith

17h 09m

1 stop

PDX8:34 pmPortland

$1,003

United Airlines flights from Portland to Australia

Our best United Airlines deals on Portland to Australia flight tickets

United Airlines

May 8

PDX3:59 pmPortland

23h 16m

1 stop

MEL8:15 amMelbourne

May 21

MEL10:55 amMelbourne

26h 59m

1 stop

PDX8:54 pmPortland

$1,021

United Airlines

Feb 24

PDX7:57 pmPortland

19h 03m

1 stop

MEL10:00 amMelbourne

Mar 3

MEL11:30 amMelbourne

44h 08m

3 stops

PDX12:38 pmPortland

$1,025

United Airlines

Mar 14

PDX1:00 pmPortland

25h 30m

2 stops

MEL8:30 amMelbourne

Mar 21

MEL10:30 amMelbourne

25h 26m

2 stops

PDX5:56 pmPortland

$1,026

Fly from

Fly to

Route

Depart

Return

Price

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

7:05 pm-2:15 pm

2 stops24h 10m

Melbourne

Sat 3/14

7:10 am-9:15 am

2 stops20h 05m

$818

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 3/13

9:53 am-10:25 am

2 stops31h 32m

Brisbane

Fri 3/20

11:50 am-8:48 pm

2 stops25h 58m

$833

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 3/5

3:15 pm-8:45 am

1 stop23h 30m

Brisbane

Thu 3/19

9:45 am-6:30 pm

1 stop25h 45m

$866

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 2/22

3:15 pm-8:45 am

1 stop23h 30m

Brisbane

Sun 4/26

10:00 am-6:30 pm

1 stop25h 30m

$874

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 3/2

2:30 pm-5:10 pm

2 stops32h 40m

Brisbane

Mon 3/9

7:40 pm-11:42 pm

1 stop21h 02m

$903

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Tue 2/24

2:30 pm-9:30 am

1 stop24h 00m

Melbourne

Sat 3/7

12:00 pm-5:13 pm

1 stop24h 13m

$956

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Sat 3/14

12:04 pm-5:00 am

1 stop22h 56m

Melbourne

Sat 3/21

12:00 pm-5:08 pm

1 stop23h 08m

$958

PortlandMelbourne

PDX - MEL

PDXMEL

Portland

Mon 2/9

6:00 am-5:00 am

1 stop28h 00m

Melbourne

Sun 3/8

12:00 pm-4:08 pm

1 stop23h 08m

$959

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Mon 3/9

7:49 pm-9:20 am

1 stop20h 01m

Adelaide

Mon 3/16

2:15 pm-9:10 pm

2 stops24h 25m

$1,116

PortlandAdelaide

PDX - ADL

PDXADL

Portland

Sat 3/14

7:49 pm-8:30 am

1 stop19h 11m

Adelaide

Sat 3/21

2:15 pm-11:09 pm

1 stop26h 24m

$1,218

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 $999. If you aren’t able to travel during the month of June, then book flights to Australia from Portland during September instead. Flights to Australia in September, while not as cheap as those in June, still average around $999.

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 $1,176 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 $897 on momondo.

Can stopping save me money on Portland to Australia flights?

You could potentially save up to 19% 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 39m
Direct flights	None

The fastest flight from Portland to Australia takes 17h 39m

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?
The number of operators available for flights from Portland Airport to Australia is 7 as of January 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
Delta	PriceFrom $497	Free Cancellation	Rating 7.9 8,125 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $550	Free Cancellation	Rating 7.8 2,830 reviews	Search Hawaiian Airlines flights
Qantas Airways	PriceFrom $757	Free Cancellation	Rating 7.5 981 reviews	Search Qantas Airways flights
Air Canada	PriceFrom $840	Free Cancellation	Rating 7.1 10,668 reviews	Search Air Canada flights
American Airlines	PriceFrom $855	Free Cancellation	Rating 7.2 11,212 reviews	Search American Airlines flights
United Airlines	PriceFrom $871	Free Cancellation	Rating 7.4 9,218 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $999	Free Cancellation	Rating 8.0 11,811 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.