HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Brisbane

$401+ Cheap flights from Portland (PDX) to Brisbane (BNE)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BNE
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Brisbane with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Cheap 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 December 4, 2025.

This United Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:59 pmPDX - BNE
2 stops37h 31mUnited Airlines
Tue 12/3011:40 amBNE - PDX
2 stops42h 18mUnited Airlines
Deal found 12/2$872
This United Airlines deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:43 pmPDX - BNE
1 stop17h 47mUnited Airlines
Sun 12/711:40 amBNE - PDX
1 stop17h 23mUnited Airlines
Deal found 12/1$949
This American Airlines deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:07 pmPDX - BNE
1 stop22h 23mAmerican Airlines
Tue 12/3012:10 pmBNE - PDX
1 stop27h 14mAmerican Airlines
Deal found 12/2$969
This Air Canada deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:15 pmPDX - BNE
2 stops31h 10mAir Canada
Tue 12/3010:45 amBNE - PDX
1 stop16h 30mAir Canada
Deal found 12/2$999
This United Airlines deal was found by Cheapflights users on 12/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:00 amPDX - BNE
2 stops32h 30mUnited Airlines
Wed 12/2411:40 amBNE - PDX
2 stops40h 21mUnited Airlines
Deal found 12/3$1,147
This Cheapflightsfares deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/264:26 pmPDX - BNE
1 stop19h 19mQantas Airways
Sun 1/117:45 pmBNE - PDX
2 stops40h 07mQantas Airways
Deal found 12/2$1,231
This Orbitz deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:00 pmPDX - BNE
2 stops27h 25mMultiple Airlines
Tue 12/3010:45 amBNE - PDX
1 stop16h 30mMultiple Airlines
Deal found 12/4$1,233
This United Airlines deal was found by Cheapflights users on 12/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:59 pmPDX - BNE
2 stops37h 31mUnited Airlines
Thu 12/2511:40 amBNE - PDX
1 stop21h 06mUnited Airlines
Deal found 12/4$1,267
This Justfly.com deal was found by Cheapflights users on 12/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 amPDX - BNE
1 stop29h 25mQantas Airways
Wed 1/77:50 pmBNE - PDX
2 stops40h 02mQantas Airways
Deal found 12/2$1,331

Find 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$791
(FlightHub)

One-way from

$401
(Trip.com)

Popular in

October

Cheapest in

February

Average price

$1,261
Provider with most accurate pricing for Portland-Brisbane flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Brisbane flights.
Search Deals
From Portland to Brisbane
Search Deals
One-way flight from Portland to Brisbane
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 4, 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

Tue 1/20

9:50 am-8:45 am

1 stop28h 55m

Brisbane

Sat 1/31

10:45 am-9:15 am

1 stop16h 30m

$829

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sat 2/21

1:40 pm-7:30 am

1 stop23h 50m

Brisbane

Sun 3/1

11:40 am-6:55 pm

1 stop25h 15m

$867

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Thu 2/5

8:30 am-7:30 am

2 stops29h 00m

Brisbane

Mon 2/9

11:40 am-12:33 pm

1 stop18h 53m

$871

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 1/26

3:50 pm-7:30 am

1 stop21h 40m

Brisbane

Fri 2/6

11:40 am-9:12 pm

2 stops27h 32m

$872

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Mon 1/26

8:30 am-7:30 am

2 stops29h 00m

Brisbane

Sat 2/7

11:40 am-9:12 pm

2 stops27h 32m

$872

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 1/20

3:45 pm-7:30 am

2 stops45h 45m

Brisbane

Sat 1/31

11:40 am-2:46 pm

1 stop21h 06m

$885

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 3/27

3:15 pm-7:05 am

1 stop22h 50m

$403

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Tue 3/31

7:00 pm-7:05 am

1 stop19h 05m

$403

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Sun 3/29

7:00 pm-7:05 am

1 stop19h 05m

$403

PortlandBrisbane

PDX - BNE

PDXBNE

Portland

Fri 3/27

7:20 am-10:25 pm

2 stops22h 05m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 15 results
1
2

Compare providers for flights from Portland to Brisbane

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Brisbane in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Brisbane flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Brisbane flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Brisbane flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Brisbane flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Brisbane flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Portland to Brisbane. Price data was last updated on November 28, 2025.

To ensure you get the cheapest price possible for a flight from Portland to Brisbane, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, December is the cheapest month in which you can book a flight from Portland to Brisbane (average of $456). Flying from Portland to Brisbane in October is currently the most expensive (average of $1,353). 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 December 4, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 62% on flights from Portland to Brisbane by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Portland to Brisbane?

Reviews of airlines servicing Brisbane

Get insights into the airlines that provide service to Brisbane. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Brisbane. Reviews last updated December 4, 2025.
See what other customers who have flown with Qantas Airways, United Airlines, and Air Canada from Portland to Brisbane have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
947 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
947 reviews
Qantas Airways
7.5
Good
947 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
United Airlines
7.4
Good
9,066 reviews
Qantas Airways
7.5
Good
947 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Air Canada
7.1
Good
10,500 reviews
Qantas Airways
7.5
Good
947 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Comfort

7.5

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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?

    Air Canada and United Airlines can get you from Portland to Brisbane in just under 23h 50m. Your travel time can differ by up to 5h 05m. The distance between Portland and Brisbane is about 7282 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Portland to Brisbane round-trip?

    Our cheapest airline available from Portland to Brisbane is United Airlines. Our recent data shows that you can find tickets from as low as $872 on this airline. Additional options worth looking into are Air Canada and Qantas Airways, starting at $940 and $1,095 round-trip. These flights start at 27% lower than the current average price 3 months from now.

  • 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 vacation 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, December is the cheapest month in which you can book a flight from Portland to Brisbane (average of $456). Flying from Portland to Brisbane in October is currently the most expensive (average of $1,353). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Brisbane

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

Top 3 airlines flying from Portland to Brisbane

Discover the top 3 airlines that operate flights from Portland to Brisbane. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$872Average$1,008FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$940Average$1,101FlexibilityNo cancel feeOn-time67%
Qantas AirwaysCheapest$1,095Average$1,863FlexibilityNo cancel feeOn-time74%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.