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Cheap flights from Portland to Brisbane from $1,108

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BNE
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Portland to Brisbane are usually found in February or March, booked 29 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Portland to Brisbane

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Brisbane (BNE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 September 2025.

Round-trip from

$1,473

One-way from

$1,108

Popular in

November

Cheapest in

February

Average price

$2,078
United Airlines
  • United Airlines
  • 23/10-31/10
  • 2 total stops
  • 35h 08m total
  • Portland to Brisbane
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Qantas Airways
  • Qantas Airways
  • 1/10
  • 2 total stops
  • 43h 35m total
  • Portland to Brisbane
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($438 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease ($57 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Brisbane

Cheapest flights from Portland to Brisbane
Explore the most affordable flight options available from Portland to Brisbane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Thu 23/1019:35PDX - BNE
1 stop17h 55mUnited Airlines
Fri 31/1010:40BNE - PDX
1 stop17h 13mUnited Airlines
Deal found 10/9$1,473
Fri 10/1015:50PDX - BNE
1 stop21h 40mUnited Airlines
Fri 17/1010:30BNE - PDX
1 stop16h 44mUnited Airlines
Deal found 11/9$1,475
Thu 9/1018:25PDX - BNE
2 stops43h 05mUnited Airlines
Thu 16/1010:30BNE - PDX
2 stops29h 16mUnited Airlines
Deal found 9/9$1,502
Thu 18/918:27PDX - BNE
2 stops43h 03mUnited Airlines
Thu 25/910:30BNE - PDX
1 stop19h 12mUnited Airlines
Deal found 11/9$1,503
Sun 14/915:25PDX - BNE
1 stop22h 40mAir Canada
Tue 30/910:20BNE - PDX
1 stop16h 01mAir Canada
Deal found 11/9$1,568
Mon 15/1219:00PDX - BNE
2 stops42h 00mAir Canada
Wed 24/1210:45BNE - PDX
1 stop16h 30mAir Canada
Deal found 9/9$1,580
Mon 15/1205:00PDX - BNE
2 stops32h 30mUnited Airlines
Wed 24/1211:40BNE - PDX
1 stop29h 06mUnited Airlines
Deal found 10/9$1,627
Mon 3/1115:54PDX - BNE
1 stop21h 36mUnited Airlines
Sat 8/1111:40BNE - PDX
1 stop24h 56mUnited Airlines
Deal found 10/9$1,677
Mon 15/915:25PDX - BNE
1 stop22h 40mAir Canada
Tue 30/910:20BNE - PDX
1 stop16h 01mAir Canada
Deal found 11/9$1,680

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portland to Brisbane that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Portland to Brisbane that are best for you.

Fly from

Portland

Fly to

Brisbane

Route

Depart

Return

Price

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 21/2

13:35-07:30

1 stop23h 55m

Brisbane

Sat 14/3

10:40-12:27

1 stop18h 47m

$1,473

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 7/11

19:38-07:30

1 stop17h 52m

Brisbane

Fri 21/11

11:40-14:46

1 stop21h 06m

$1,473

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 23/10

19:35-06:30

1 stop17h 55m

Brisbane

Fri 31/10

10:40-10:53

1 stop17h 13m

$1,473

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 10/10

15:50-06:30

1 stop21h 40m

Brisbane

Fri 17/10

10:30-10:14

1 stop16h 44m

$1,475

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 21/2

09:50-08:45

1 stop28h 55m

Brisbane

Sun 1/3

10:45-14:45

1 stop22h 00m

$1,481

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 1/10

10:30-23:05

2 stops43h 35m

$1,108

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Wed 1/10

14:50-05:25

1 stop21h 35m

$1,351

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Best time to book a flight from Portland to Brisbane

Have a flexible travel schedule? Discover the best time to fly to Brisbane from Portland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Brisbane

How far ahead should I book a flight from Portland to Brisbane?

Use this chart to determine the optimal time to book a return flight from Portland to Brisbane. Price data was last updated on 29 August 2025.

Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Brisbane. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland to Brisbane?

Currently, May is the cheapest month in which you can book a flight from Portland to Brisbane (average of $160). Flying from Portland to Brisbane in September is currently the most expensive (average of $208). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to BNE?

Find hourly flight availability from Portland to Brisbane. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Portland to Brisbane, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 13% versus a flight at midday.

How much does it cost for a return flight from Portland to Brisbane?

Related info for your journey

Find useful and relevant information for your journey from Portland to Brisbane. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Brisbane?

    Departing from Portland to Brisbane will take you 23h 55m. Airlines will cover a distance of 11719 km.

  • Can I find deals for flights from Portland to Brisbane that include hotel bookings?

    Yes. In addition to deals on Portland to Brisbane flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portland to Brisbane?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Brisbane.

  • Can I find deals for business class flights from Portland to Brisbane?

    Yes. Cheapflights offers flight deals from Portland to Brisbane by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Brisbane?

    Currently, May is the cheapest month in which you can book a flight from Portland to Brisbane (average of $160). Flying from Portland to Brisbane in September is currently the most expensive (average of $208). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Brisbane?

Book flights to Brisbane if you plan to visit one of these locations
Ipswich
Caboolture
Redcliffe

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Brisbane

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Coolangatta flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portland to Brisbane?

When you search for this flight from Portland to Brisbane, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portland to Brisbane?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portland to Brisbane.

Can Cheapflights find flights from Portland to Brisbane with no change fees?

Need flexible booking options for your flight to Brisbane from Portland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Portland to Brisbane become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Brisbane from Portland today and book when prices fit your budget.

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