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

United Airlines, Virgin Australia, and American Airlines are the most popular carriers operating from Portland to Australia

What airlines fly to Australia?

United Airlines, Air Canada and Delta are the top three most popular airlines that fly to Australia from Portland according to our data. United Airlines 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 9 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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 9 as of April 2025.

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.

$431 Cheap Flights from Portland to Australia in 2025

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Find the cheapest flights from Portland to Australia

Round-trip

One-way

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Cheap round-trip flights

These are some of the best round-trip flight deals from Portland to Australia that have been recently found on momondo from popular airlines, departing in the coming months.

9:50 pm - 2:40 pmPDX-SYD

47h 50m2 stops

4:20 pm - 10:40 pmSYD-PDX

23h 20m1 stop

$924

Find Deal

Wed, Aug 13 - Wed, Aug 20

1:35 pm - 6:55 amPDX-SYD

24h 20m1 stop

10:20 am - 6:35 pmSYD-PDX

25h 15m1 stop

$966United Airlines

Find Deal

Thu, May 29 - Thu, Jun 5

7:40 pm - 7:20 amPDX-SYD

18h 40m1 stop

9:20 am - 2:46 pmSYD-PDX

22h 26m1 stop

$1,144Air Canada

Find Deal

Tue, Sep 2 - Tue, Sep 23

8:05 am - 7:45 pmPDX-SYD

18h 40m1 stop

9:40 pm - 6:20 amSYD-PDX

25h 40m2 stops

$1,158Alaska Airlines

Find Deal

Sat, May 10 - Tue, May 20

3:25 pm - 7:20 amPDX-SYD

22h 55m1 stop

7:00 am - 9:21 amSYD-PDX

19h 21m2 stops

$1,160Air Canada

Find Deal

Tue, Sep 2 - Tue, Sep 23

8:05 am - 7:45 pmPDX-SYD

18h 40m1 stop

9:40 pm - 1:57 pmSYD-PDX

33h 17m2 stops

$1,162Alaska Airlines

Find Deal

Sat, May 10 - Fri, May 23

10:15 am - 6:35 amPDX-SYD

27h 20m1 stop

9:25 am - 3:56 pmSYD-PDX

23h 31m1 stop

$1,291Delta

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Wed, Jul 16 - Sun, Jul 27

11:05 am - 6:35 amPDX-SYD

26h 30m2 stops

9:25 am - 6:54 pmSYD-PDX

26h 29m1 stop

$1,296Delta

Find Deal

Wed, Jul 16 - Sun, Jul 27

7:45 am - 5:25 amPDX-BNE

28h 40m1 stop

8:05 pm - 9:14 pmBNE-PDX

18h 09m1 stop

$1,305Qantas Airways

Find Deal

Fri, Aug 1 - Mon, Aug 18

7:45 am - 5:25 amPDX-BNE

28h 40m1 stop

12:15 pm - 9:14 pmBNE-PDX

25h 59m2 stops

$1,330Qantas Airways

Find Deal

Fri, Aug 1 - Mon, Aug 18

United Airlines flights from Portland to Australia

Our best United Airlines deals on Portland to Australia flight tickets

United Airlines

May 29

PDX1:35 pmPortland

24h 20m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 5

SYD10:20 amSydney Kingsford Smith

25h 15m

1 stop

PDX6:35 pmPortland

$966

Find similar

United Airlines

May 29

PDX8:45 amPortland

29h 10m

2 stops

SYD6:55 amSydney Kingsford Smith

Jun 5

SYD10:20 amSydney Kingsford Smith

19h 02m

1 stop

PDX12:22 pmPortland

$970

Find similar

United Airlines

Oct 23

PDX5:30 amPortland

32h 30m

2 stops

SYD8:00 amSydney Kingsford Smith

Nov 17

SYD11:50 amSydney Kingsford Smith

29h 54m

1 stop

PDX10:44 pmPortland

$996

Find similar

Virgin Australia flights from Portland to Australia

Our best Virgin Australia deals on Portland to Australia flight tickets

Virgin Australia

Aug 17

PDX1:37 pmPortland

24h 18m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 30

SYD10:20 amSydney Kingsford Smith

25h 12m

1 stop

PDX6:32 pmPortland

$1,032

Find similar

Virgin Australia

May 27

PDX7:41 pmPortland

18h 14m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 3

SYD10:20 amSydney Kingsford Smith

21h 26m

1 stop

PDX2:46 pmPortland

$1,058

Find similar

Virgin Australia

Jun 9

PDX7:50 pmPortland

19h 25m

1 stop

MEL8:15 amMelbourne

Jun 16

MEL10:55 amMelbourne

24h 40m

1 stop

PDX6:35 pmPortland

$1,449

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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

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 $1,039. If you aren’t able to travel during the month of February, then book flights to Australia from Portland during August instead. Flights to Australia in August, while not as cheap as those in February, still average around $1,078.

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

The cheapest day to depart from Portland to Australia is on a Saturday. Travelers who choose to depart for Australia on a Saturday will often find tickets for as low as $1,040. On the other hand, Thursday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,146.

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

Flying to Australia from Portland in the morning is the least expensive time of day to depart. momondo users have found prices as low as $1,060 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,135 on average. Flights to Australia from Portland at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 14 weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,177 when searching 14 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 $951 on momondo.

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	$431
Fastest flight time	18h 14m
Direct flights	None
Airports in Australia	4 airports

The best one-way flight to Australia from Portland in the past 72 hours is $431. The best round-trip flight deal from Portland to Australia found on momondo in the last 72 hours is $924.

The fastest flight from Portland to Australia takes 18h 14m

There are no direct flights from Portland to Australia. Popular non-direct routes for this connection are Portland Airport - Sydney Kingsford Smith Airport, Portland Airport - Brisbane Airport and Portland Airport - Melbourne Avalon Airport.

There are 4 airports near Australia: Melbourne Avalon (AVV), Melbourne (MEL), Brisbane (BNE), Sydney Kingsford Smith (SYD)

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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 9 as of April 2025.
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
Hawaiian Airlines	PriceFrom $444	Free Cancellation	Rating 7.9 2,406 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $456	Free Cancellation	Rating 8.0 7,934 reviews	Search Delta flights
United Airlines	PriceFrom $759	Free Cancellation	Rating 7.4 8,696 reviews	Search United Airlines flights
Air Canada	PriceFrom $844	Free Cancellation	Rating 7.0 9,245 reviews	Search Air Canada flights
American Airlines	PriceFrom $921	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $1,036	Free Cancellation	Rating 7.5 829 reviews	Search Qantas Airways flights
Alaska Airlines	PriceFrom $1,068	Free Cancellation	Rating 8.0 9,968 reviews	Search Alaska Airlines flights
Singapore Airlines	PriceFrom $1,275	Free Cancellation	Rating 8.1 1,292 reviews	Search Singapore Airlines flights
Qatar Airways	PriceFrom $1,286	Free Cancellation	Rating 7.4 3,563 reviews	Search Qatar Airways 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.